[Power Features]
• Bass EQ (45Hz, +16dB for CH3/4)
• Multimode Capability (CH3/4)
• MOS-FET Power Supply Transistor
• BI-POLAR Output Transistor
• Amplifier Link (Model 2005)
• Phase Selector
• Speaker Input (RCA conversion)
• RCA Pre-out
• Independent Variable Crossover
• Over Current Protection
• High Temperatur Protection
• STAR Circuit
• Digital Control Center Display
• Discrete Pre-amp Stage
• DC-DC PWM Power Supply
• MOS-FET Output & Power Supply Transistor

[Power Specifications]
• Weight 5.6 kg
• Dimensions 420 x 60 x 228 mm
• Frequency Response 20Hz-20kHz (0, -1dB)
• Input Sensitivity 0.2-4V (at 10k ohm)
• S/N Ratio 96dBA
• 500W x 1 Bridge (4ohm, 14.4V, 0.3% THD, CH3/4)
• 125W x 1 Bridge (4ohm, 14.4V, 0.3% THD, CH1/2)
• 100W x 4 RMS (4ohm, 12.0V, 0.08% THD)
• 125W x 4 RMS (4ohm, 14.4V, 0.08% THD)
• Max. 225W x 4

Huge power output for subwoofers The four-channel design provides enormous flexibility for your system—and enormous power for your subwoofers. The output for channels 3 and 4 doubles when bridged, powering your subwoofer with 500 watts (on the MRV-F545) or 300 watts (MRV-F345).

State-of-the-art Triple Darlington circuitry Drawing on the cutting-edge AlpineF#1Status system and employing high-end home audio technology, these amps use six Darlington transistors in a parallel push-pull configuration. Three transistors on each channel are effectively combined into one extremely powerful transistor to produce a significant increase in gain—delivering massive power output with exceptional dynamic range and plenty of headroom.

Amplifier-Link Extensive control doesn’t mean much if you have to crawl under the hood or take your equipment apart to do it. Amplifier Link lets you make comprehensive sound adjustments to all the V12 AccuClass-D amplifiers in your system — up to eight of them — directly from the head unit. A total of 11 parameters can be adjusted, including Digital Time Correction, Crossover and Parametric EQ. Amp temperature, voltage and current are even shown on the head unit display, and each amp can be named for easy identification.