GM Series

GM12-100F

P-Audio GM12-100F 12" 800W Low Frequency Driver

Click here to download the Datasheet (PDF)


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.	General Specifications Nominal diameter............................................... 305 mm/12 in Power rating..........................................................800 W(AES) Nominal impedance............................................................ 8 Sensitivity........................................................................ 97 dB Frequency range.....................................................60-2500 Hz Chassis type.....................................................Cast Aluminium Magnet type...................................................................Ferrite Magnet weight...............................................3.56 kg/125.7 oz Voice coil diameter.......................................... 101.6 mm/4 in Coil material........................................Round Copper Clad Aluminium Wire Former material.......................................................Glass Fibre Cone material.................................................................Paper Surround material............................................................Cloth Suspension........................................... Silicone Impregnated Spider X-max.............................................................2.55 mm/0.1 in Gap depth.......................................................10 mm/0.39 in Voice coil winding width................................. 15.1 mm/0.59 in Net Weight......................................................... 11.1 kg/24.5 lb Pack ing Dimension WxDxH (mm)355mm x 355mm x 190mm Shipping Weight................................................ 12 kg/26.5 lb Small Signal Parameters Re.................................................................................... 5.4 Fs................................................................................... 56 Hz Mms.................................................................. 72.15 g/2.55 oz Mmd.................................................................. 65.11 g/2.3 oz Qms.................................................................................... 5.97 Qes................................................................................... 0.38 Qts.................................................................................... 0.35 Vas................................................................... 44.70 lt/1.58 ft3 SD............................................................................531 cm2 BI.............................................................................. 18.99 Tm Cms......................................................................1.1e-04 m/N Rms......................................................................... 4.25 Ns/m Le (at 1kHz)................................................................0.55 mH

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.

General Specifications

Nominal diameter............................................... 305 mm/12 in
Power rating..........................................................800 W(AES)
Nominal impedance............................................................ 8
Sensitivity........................................................................ 97 dB
Frequency range.....................................................60-2500 Hz
Chassis type.....................................................Cast Aluminium
Magnet type...................................................................Ferrite
Magnet weight...............................................3.56 kg/125.7 oz
Voice coil diameter.......................................... 101.6 mm/4 in
Coil material........................................Round Copper Clad Aluminium Wire
Former material.......................................................Glass Fibre
Cone material.................................................................Paper
Surround material............................................................Cloth
Suspension........................................... Silicone Impregnated Spider
X-max.............................................................2.55 mm/0.1 in
Gap depth.......................................................10 mm/0.39 in
Voice coil winding width................................. 15.1 mm/0.59 in
Net Weight......................................................... 11.1 kg/24.5 lb
Pack ing Dimension WxDxH (mm)355mm x 355mm x 190mm
Shipping Weight................................................ 12 kg/26.5 lb

Small Signal Parameters

Re.................................................................................... 5.4
Fs................................................................................... 56 Hz
Mms.................................................................. 72.15 g/2.55 oz
Mmd.................................................................. 65.11 g/2.3 oz
Qms.................................................................................... 5.97
Qes................................................................................... 0.38
Qts.................................................................................... 0.35
Vas................................................................... 44.70 lt/1.58 ft3
SD............................................................................531 cm2
BI.............................................................................. 18.99 Tm
Cms......................................................................1.1e-04 m/N
Rms......................................................................... 4.25 Ns/m
Le (at 1kHz)................................................................0.55 mH