Rane MA 4 MA 4 Amplifier Data Sheet - Page 2

MA 4 MULTICHANNEL AMPLIFIER Specifications Parameter Input impedance Maximum input Sensitivity range/resolution Remote level control range/resolution Fault flag in/out Limiter ..........Load compensated Compressor ..........Threshold ..........Attack ..........Decay ..........Knee Span Expander ..........Threshold ..........Attack ..........Decay High-pass filter Load sensing ..........Low load detect ..........High load detect ..........Min average power Output ..........Power ..........Frequency response ..........Dynamic range ..........THD+N ..........Clock fundamental ..........Relay switching Fan cooling Heat load in Btu/hr ..........Standby ..........Run mode, no signal ..........All channels driven AC Mains PFC DC/DC Unit: Conformity ..........Construction ..........Size ..........Weight: Shipping: Size ..........Weight: Data Sheet-2 Specification 10 kΩ +22 dBu +22 to +4 dBu Attenuate only; 0 dB to -80 dB Active 5V high-side drive, passive pull down. Oversampled instantaneous attack Limit set for 7.5 amps peak 50 ms rms detector 10 dB re peak dBFS 1.5 second 3 dB per second 10 dB Select on rear panel -70 dBFS 50 ms 10 dB per second 12 dB per octave, Butterworth 2 to 16Ω normal Below 2Ω is low Above 16Ω is high 3.3 watts average required for good load estimate Conditions/Comments Each leg, differential, 1 kHz 256 steps Audio taper response, 256 steps NO Fault = +5V; Fault = 0V 3 dB per second decay Based on load Z Threshold relative to limiter Rear panel dipswitch on/off rms detector Gain reduction release time constant Rate of gain reduction 20, 40, 60, 80 Hz dipswitch select Green Load indicator on Green Load indicator flashing Green Load indicator off 100 watts 3 to 8 Ω 20 Hz to 20 kHz +0, -3 dB >90 dB A-weighted, typical 0.1% typ 100 watts into 4Ω, 20-20 kHz 310 kHz