Products Catalog

Marani

MIR480A

MIR480A is a digital audio processor newly designed by Marani. It has extremely low noise floor, high dynamic range and powerful internal DSP to cover most of the usage scenarios. Whether in meeting rooms , theaters , touring performances, or even large-scale tours, you can use the A series processors. Advanced circuit design and original DSP algorithm are the core of pure and high-quality sound. In the signal processing part of MIR480A, inside powerful MARANI DSP, DSP and AD/DA converters are running at 96KHz sampling rate, complete processing functions provide a complete speaker crossover solution. From input gain/delay/noise gate/EQ/compression/FIR ，tooutputgain/delay/polarity/frequency division/FIR/EQ/compression/compression, there are up to 16 types of parametric equalizer (PEQ) The filter type can be selected. The output crossover filter has the classic Linkwitz-Riley /Bessel/Butterworth, and there are also NXF horntype filters and FIR filters with a slope of up to 120dB per octave. The newly added MIR linear phase frequency divider filter can make the phase of the crossover point easier to join and produce a lower delay. Everything we provide is for better sound. Added DSP plug-in, providing 96kHz FIR filter/highorder signal generator/RTA real-time spectrum analyzer, etc. The newly designed Hard Limiter (Hard Limiter) allows a constant rate limit on signals exceeding the threshold at any threshold to better protect the speaker unit. Each input and output channel provides a maximum 512-tap FIR filter, which can be customized by third-partysoftwaretogeneratetheFIR convolution you need. It can be used for speaker presets to improve the phase response and control the directivity according to requirements. The newly added MIR linear phase divider filter has the filter shape of the traditional IIR filter (Linkwitz-Riley 24+48/oct), but does not produce any phase shift, and the resulting delay is about 50% of the FIR filter.

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Marani

MIR260A

MIR260A is a digital audio processor newly designed by Marani. It has extremely low noise floor, high dynamic range and powerful internal DSP to cover most of the usage scenarios. Whether in meeting rooms , theaters , touring performances, or even large-scale tours, you can use the A series processors. Advanced circuit design and original DSP algorithm are the core of pure and high-quality sound. In the signal processing part of MIR260A, inside powerful MARANI DSP, DSP and AD/DA converters are running at 96KHz sampling rate, complete processing functions provide a complete speaker crossover solution. From input gain/delay/noise gate/EQ/compression/FIR ，tooutputgain/delay/polarity/frequency division/FIR/EQ/compression/compression, there are up to 16 types of parametric equalizer (PEQ) The filter type can be selected. The output crossover filter has the classic Linkwitz-Riley /Bessel/Butterworth, and there are also NXF horntype filters and FIR filters with a slope of up to 120dB per octave. The newly added MIR linear phase frequency divider filter can make the phase of the crossover point easier to join and produce a lower delay. Everything we provide is for better sound. Added DSP plug-in, providing 96kHz FIR filter/highorder signal generator/RTA real-time spectrum analyzer, etc. The newly designed Hard Limiter (Hard Limiter) allows a constant rate limit on signals exceeding the threshold at any threshold to better protect the speaker unit. Each input and output channel provides a maximum 512-tap FIR filter, which can be customized by third-partysoftwaretogeneratetheFIR convolution you need. It can be used for speaker presets to improve the phase response and control the directivity according to requirements. The newly added MIR linear phase divider filter has the filter shape of the traditional IIR filter (Linkwitz-Riley 24+48/oct), but does not produce any phase shift, and the resulting delay is about 50% of the FIR filter.

P.Audio

G12-400MB

P.Audio

P Audio G15-400M

SMALL SIGNAL PARAMETERS Re 5.4Ω Fs 48 Hz Mms 83.92 g/2.96 oz Mmd 69.53 g/2.45 oz Qms 7.65 Qes 0.52 Qts 0.49 Vas 134.87 lt/4.0 ft7 SD 855.3 cm2 BL 16.17 Txm Cms 1.3e-04 m/N Rms 3.33 Ns/m Le (at 1kHz) 0.49 mH

P.Audio

P Audio G15-400MB

SMALL SIGNAL PARAMETERS Re 5.6Ω Fs 50 Hz Mms 88.06 g/3.11 oz Mmd 73.02 g/2.58 oz Qms 7.86 Qes 0.43 Qts 0.41 Vas 125.69 lt/4.0 ft4 SD 881.4 cm2 BL 18.96 Txm Cms 1.1e-04 m/N Rms 3.53 Ns/m Le (at 1kHz) 0.710 mH

P.Audio

P.Audio Gallardo-4

The P.Audio Gallardo-4 is a small format high performance sound reinforcement system designed for high quality foreground and background music applications. The Gallardo-4 is designed for both indoor and outdoor applications where music and speech reinforcement is specified. The system is ideal for use in restaurants, retail environments, bars, hotels, and other applications where high quality music systems are specified. The Gallardo-4 utilized a two element array of high output 4 inch (101.6mm) woofers. The horn loaded high frequency wave guide is positioned between the two element arrays to insure coherent and balanced high frequency response. Polar lobing is controlled by this geometry and produces a properly aimed response at the crossover frequency. The Gallardo-4 features a standard multi-tap transformer input that is switch able from a maximum of 50 watts of input power in essentially 3dB steps. The available taps are 50 watts, 25 watts, 12 watts and 5 watts. The Gallardo-4 may also be easily configured for a standard low impedance direct input. The system also features a standard mounting bracket designed for flexible aiming and easy installation. The small physical size and unique appearance of the Gallardo-4 make it an ideal installation product. It is very versatile and combines great sound with great looks. The P.Audio Gallardo-4 is a small format high performance sound reinforcement system designed for high quality foreground and background music applications. The Gallardo-4 is designed for both indoor and outdoor applications where music and speech reinforcement is specified. The system is ideal for use in restaurants, retail environments, bars, hotels, and other applications where high quality music systems are specified. The Gallardo-4 utilized a two element array of high output 4 inch (101.6mm) woofers. The horn loaded high frequency wave guide is positioned between the two element arrays to insure coherent and balanced high frequency response. Polar lobing is controlled by this geometry and produces a properly aimed response at the crossover frequency. The Gallardo-4 features a standard multi-tap transformer input that is switch able from a maximum of 50 watts of input power in essentially 3dB steps. The available taps are 50 watts, 25 watts, 12 watts and 5 watts. The Gallardo-4 may also be easily configured for a standard low impedance direct input. The system also features a standard mounting bracket designed for flexible aiming and easy installation. The small physical size and unique appearance of the Gallardo-4 make it an ideal installation product. It is very versatile and combines great sound with great looks.

P.Audio

P.Audio GM12-100F

The P. Audio "Golden Master" GM12-100F is the intersection of advanced design and state of the art manufacturing. The GM12-100F is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 4 inch (101.6mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature copper clad aluminium wire and extended winding length. The weight-optimized ferrite magnetics maximize the coil"s strengths by providing strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The ferrite magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-100F is rated at 3200 W peak power handling/ 800 W AES continuous power handling with nominal sensitivity of 97 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-100F"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary double-roll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-100F is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations - general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-100F offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system. SMALL SIGNAL PARAMETERS Fs 56 Hz Re 5.4 Ohm Qms 5.97 Qes 0.38 Qts 0.35 Bl 18.99 Tm Mms 72.15 g / 2.55 oz Mmd 65.11 g / 2.30 oz Vas 44.70 lt / 1.58 cu.ft3 Sd 531 cm2 Le 0.55 mH Cms 1.1e - 04 m/N Rms 4.25 Ns/m The P. Audio "Golden Master" GM12-100F is the intersection of advanced design and state of the art manufacturing. The GM12-100F is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 4 inch (101.6mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature copper clad aluminium wire and extended winding length. The weight-optimized ferrite magnetics maximize the coil"s strengths by providing strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The ferrite magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-100F is rated at 3200 W peak power handling/ 800 W AES continuous power handling with nominal sensitivity of 97 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-100F"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary double-roll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-100F is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations - general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-100F offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system.

P.Audio

P.Audio GM12-100N

The P. Audio "Golden Master" GM12-100N is the intersection of advanced design and state of the art manufacturing. The GM12-100N is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 4 inch (101.6mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature copper clad aluminium wire and extended winding length. The low-weight neodymium magnetics maximize the coil"s strengths by providing extra strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The neodymium magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-100N is rated at 3200 W peak power handling/ 800 W AES continuous power handling with nominal sensitivity of 98 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-100N"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary double-roll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-100N is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations - general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-100N offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system. SMALL SIGNAL PARAMETERS Fs 55 Hz Re 5.4 Ohm Qms 6.02 Qes 0.33 Qts 0.32 Bl 19.65 Tm Mms 70.12 g / 2.48 oz Mmd 63.08 g / 2.23 oz Vas 47.76 lt / 1.69 cu.ft3 Sd 531 cm2 Le 0.59 mH Cms 1.2e - 04 m/N Rms 4.03 Ns/m The P. Audio "Golden Master" GM12-100N is the intersection of advanced design and state of the art manufacturing. The GM12-100N is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 4 inch (101.6mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature copper clad aluminium wire and extended winding length. The low-weight neodymium magnetics maximize the coil"s strengths by providing extra strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The neodymium magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-100N is rated at 3200 W peak power handling/ 800 W AES continuous power handling with nominal sensitivity of 98 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-100N"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary double-roll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-100N is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations - general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-100N offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system.

P.Audio

P.Audio GM12-88F

The P. Audio "Golden Master" GM12-88F is the intersection of advanced design and state of the art manufacturing. The GM12-88F is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 3.5 inch (88.9mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature aluminium wire and extended winding length. The weight-optimized ferrite magnetics maximize the coil"s strengths by providing strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The ferrite magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-88F is rated at 2800 W peak power handling/700 W AES continuous power handling with nominal sensitivity of 97 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-88F"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary doubleroll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-88F is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations -general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-88F offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system. SMALL SIGNAL PARAMETERS Fs 56 Hz Re 5.7 Ohm Qms 7.36 Qes 0.44 Qts 0.42 Bl 17.75 Tm Mms 69.33 g / 2.45 oz Mmd 62.29 g / 2.20 oz Vas 45.45 lt / 1.60 cu.ft3 Sd 531 cm2 Le 0.58 mH Cms 1.2e - 04 m/N Rms 3.4 Ns/m The P. Audio "Golden Master" GM12-88F is the intersection of advanced design and state of the art manufacturing. The GM12-88F is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 3.5 inch (88.9mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature aluminium wire and extended winding length. The weight-optimized ferrite magnetics maximize the coil"s strengths by providing strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The ferrite magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-88F is rated at 2800 W peak power handling/700 W AES continuous power handling with nominal sensitivity of 97 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-88F"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary doubleroll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-88F is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations -general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-88F offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system.

P.Audio

P.Audio GM12-88N

The P. Audio "Golden Master" GM12-88N is the intersection of advanced design and state of the art manufacturing. The GM12-88N is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 3.5 inch (88.9mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature aluminium wire and extended winding length. The low-weight neodymium magnetics maximize the coil"s strengths by providing extra strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The neodymium magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-88N is rated at 2800 W peak power handling/700 W AES continuous power handling with nominal sensitivity of 97 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-88N"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary doubleroll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-88N is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations - general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-88N offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system. SMALL SIGNAL PARAMETERS Fs 63 Hz Re 5.7 Ohm Qms 3.61 Qes 0.54 Qts 0.47 Bl 17.78 Tm Mms 75.20 g / 2.65 oz Mmd 68.16 g / 2.41 oz Vas 33.5 lt / 1.18 cu.ft3 Sd 531 cm2 Le 0.50 mH Cms 8.5e - 05 m/N Rms 8.3 Ns/m The P. Audio "Golden Master" GM12-88N is the intersection of advanced design and state of the art manufacturing. The GM12-88N is a 12 inch (305mm) low frequency transducer for high performance professional audio. The 3.5 inch (88.9mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring low weight, high temperature aluminium wire and extended winding length. The low-weight neodymium magnetics maximize the coil"s strengths by providing extra strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The neodymium magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM12-88N is rated at 2800 W peak power handling/700 W AES continuous power handling with nominal sensitivity of 97 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM12-88N"s large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary doubleroll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation, while low moving mass has been optimized for high performance 12" two-way designs. The ideal application for the GM12-88N is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure in a range of configurations - general purpose sound reinforcement systems, mid-bass applications and floor monitors. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM12-88N offers a 60-2500Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system.

P.Audio

P.Audio GM15-100F

The P. Audio "Golden Master" GM15-100F is the intersection of advanced design and state of the art manufacturing. The GM15-100F is a 15 inch (381mm) low frequency transducer for high performance professional audio. The 4 inch (101.6mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring ultra-high temperature wire and extended winding length. The low-weight neodymium magnetics maximize the coil"s strengths by providing extra strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The neodymium magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM15-100F is rated at 4000 W peak power handling/ 1000 W AES continuous power handling with nominal sensitivity of 98 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM15-100F large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary double-roll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation. The ideal application for the GM15-100F is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure - both two-way full range and double 15" sub-woofer designs. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM15-100F offers a 50-2000Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system. SMALL SIGNAL PARAMETERS Fs 47 Hz Re 5.6 Ohm Qms 8.90 Qes 0.41 Qts 0.39 Bl 22.68 Tm Mms 128.86 g / 4.51 oz Mmd 113.48 g / 4.01 oz Vas 92.53 lt / 3.27 cu.ft3 Sd 855 cm2 Le 0.83 mH Cms 9.0e - 05 m/N Rms 4.3 Ns/m The P. Audio "Golden Master" GM15-100F is the intersection of advanced design and state of the art manufacturing. The GM15-100F is a 15 inch (381mm) low frequency transducer for high performance professional audio. The 4 inch (101.6mm) inside/outside wound voice coil is designed for superior reliability and excursion, featuring ultra-high temperature wire and extended winding length. The low-weight neodymium magnetics maximize the coil"s strengths by providing extra strong magnetic flux across its whole range of movement. This keeps coil motion faithful to the audio signal without distorting. Aluminium "demodulation" rings negate inductance effects in the motor, further improving the fidelity of coil movement. The neodymium magnet structure cooperates with a carefully optimized venting system on the bottom of the sleek Golden Master chassis to control airflow around the voice coil. This cools the durable design to further levels of reliability without losing sensitivity - the GM15-100F is rated at 4000 W peak power handling/ 1000 W AES continuous power handling with nominal sensitivity of 98 dB. Linear and symmetrical stiffness behavior of the suspension compliments linear coil motion. The GM15-100F large diameter spider is a durable silicone laminate design that provides symmetrical displacement and reliable voice coil positioning even after hours at high power levels. The cone features a proprietary double-roll cloth surround. The perfect match of material and geometry mean ultra-low distortion of cone movement and ultra-low distortion of sound. Coating keeps the cone rigid and waterproof during operation. The ideal application for the GM15-100F is in very high performance sound reinforcement and large format public address systems. It is ideal for use in a well-tuned vented enclosure - both two-way full range and double 15" sub-woofer designs. Performance is optimized when using a high pass 4th order Butterworth filter tuned near the enclosure vent frequency. The GM15-100F offers a 50-2000Hz useable bandwidth, though the actual crossover frequency will be determined by the driver and horn combination in the user"s system.