http://www.soundlightcity.co.za/component/content/article/39/304

JBSystems AVM Series

AVM 1	Class-D amplifier module for installation inside the VIBE-10 Mk2 & VIBE-12 Mk2 speakers All you need is a screwdriver and 5 minutes of your time to make the transformation, no technical skills required! Balanced / unbalanced line input/output (XLR) with volume control. 100Hz low-cut filter, used to cut low frequencies to the speaker cabinet when used in combination with an active subwoofer. Speakon output for optional passive 8ohm cabinet. (preferable same model) IEC input mains connector with integrated switch Power 8ohm (1kHz, THD+N <0,1%):  300Wrms Power 4ohm (1kHz, THD+N <0,1%):  500Wrms Freq. Resp. (+/-2dB):  20 – 20.000Hz Input Sensitivity line: 1V Input impedance: 20 kohm S/R ratio (A-weighted): >86dB Damping factor:  320 Cooling: Magnetic field fan Line input / output:  Balanced XLR 3pin Outputs: Speakon +1/-1 Protections:  Thermal, Limiter, Current limiter, short circuit, DC-protection Fuse (5x20mm): T5AL / 250V Power supply: AC230V / 50Hz Power consumption (peak/4ohm ): 630W Dimensions (mm): 275x145x72mm Hole cutout (mm): 253x123mm Weight (without mains cable): 2kg
AVM 2	Class-D amplifier module for installation inside the VIBE-15Mk2, Vibe 30Mk2 and Vibe 15s Mk2 speakers All you need is a screwdriver and 5 minutes of your time to make the transformation, no technical skills required! Balanced / unbalanced line input/output (XLR) with volume control. Variable Lowpass filter (90-250Hz) Speakon output for optional passive 8ohm cabinet. (preferable same model) IEC input mains connector with integrated switch Power 8ohm (1kHz, THD+N <0,1%):  500Wrms Power 4ohm (1kHz, THD+N <0,1%):  850Wrms Freq. Resp. (+/-2dB):  20 – 20.000Hz Input Sensitivity line: 1V Input impedance: 20 kohm S/R ratio (A-weighted): >88dB Damping factor:  350 Cooling: Magnetic field fan Line input / output:  Balanced XLR 3pin Outputs: Speakon +1/-1 Protections:  Thermal, Limiter, Current limiter, short circuit, DC-protection Fuse (5x20mm): T5AL / 250V Power supply: AC230V / 50Hz Power consumption (peak/4ohm ): 1000W Dimensions (mm): 320x160x78mm Hole cutout (mm): 298x138mm Weight (without mains cable): 3kg
AVM 3	Class-D amplifier module for installation inside the VIBE-18s Mk2 speaker All you need is a screwdriver and 5 minutes of your time to make the transformation, no technical skills required! Balanced / unbalanced line input/output (XLR) with volume control. Variable lowpass filter (90-250Hz) Speakon output for optional passive 8ohm cabinet. (preferable same model) IEC input mains connector with integrated switch Power 8ohm (1kHz, THD+N <0,1%):  800Wrms Power 4ohm (1kHz, THD+N <0,1%):  1300Wrms Freq. Resp. (+/-2dB):  20 – 20.000Hz Input Sensitivity line: 1V Input impedance: 20 kohm S/R ratio (A-weighted): >92dB Damping factor:  350 Cooling: Magnetic field fan Line input / output:  Balanced XLR 3pin Outputs: Speakon +1/-1 Protections:  Thermal, Limiter, Current limiter, short circuit, DC-protection Fuse (5x20mm): T5AL / 250V Power supply: AC230V / 50Hz Power consumption (peak/4ohm ): 1550W Dimensions (mm): 320x160x78mm Hole cutout (mm): 298x138mm Weight (without mains cable): 3kg