MRX Amplifier Design: Class-D amplifiers boast higher
efficiency, produce less heat, and draw less current than traditional
Class-AB amps. The new MRX series benefits from the technology trickledown
from Alpine's more expensive PDX amps, including Direct FET final outputs,
thermal management processor, 6-Layer Glass Epoxy PC Board; combining to create
a high-end sound quality without the bulky heat sinks required by most amps in
this power class.
STAR Topology: Alpine's unique STAR (Signal Transit for
Accurate Response) Circuit PCB design provides a single common ground for all
amp sub-blocks, preventing ground interference and minimizing internal noise.
Power Management Processor: The multi-stage Power Management
Processor continuously monitors component temperatures throughout the amplifier
and decreases power output if anything gets too hot. When playing music under heavy
loads for long periods, the circuit automatically reduces power output slightly
at first, and then further in a second stage if necessary. This two stage approach
provides an interruption free listening experience.
Multi-Channel Design: The Alpine MRX-V60 is a 5-channel
amplifier, basically two independent 2-channel amplifiers (front and rear) plus
a mono subwoofer amplifier built into one chassis. Either the front or rear amp
can be bridged so it can be used as a 5-channel, 4-channel, or 3-channel amplifier.
The amplifier is stable down to 2-ohms in stereo, 2-ohms on the subwoofer output,
and 4-ohms when bridged.
CEA 2006 Compliant: The MRX-V60's power ratings are measured
according to the Consumer Electronics Association CEA-2006 standards. These standards
allow you to accurately compare the rated power output of all CEA 2006-compliant
amplifiers, even different brands. Manufacturers who adhere to the standards can
display the CEA 2006 logo on their products and packaging.
- Front and Rear Channels:
- 4-ohm: 50 watts per channel measured
from 20 Hz to 20,000 Hz with no more than 0.07% THD+N
- 2-ohm: 75 watts per channel measured
from 20 Hz to 20,000 Hz with no more than 0.09% THD+N
- Bridged (4-ohm): 150 watts measured
from 20 Hz to 20,000 Hz with no more than 0.09% THD+N
- Subwoofer Channel:
- 4-ohm: 200 watts measured from 20 Hz
to 400 Hz with no more than 0.04% THD+N
- 2-ohm: 300 watts measured from 20 Hz
to 400 Hz with no more than 0.06% THD+N
Signal-to-Noise: When measured under CEA-2006 conditions
(reference 1 watt into a 4-ohm load) the signal to noise ratio is 87 dBA.
Measured at the rated power output S/N is 104 dB for the front and rear channels
and 110 dB for the subwoofer channel.
Verification Certificate: The amplifier comes with a certificate
that lists the RMS power output measured from that specific amplifier. It also lists
the model number, serial number, test date, and the test conditions (voltage and
Wide Frequency Response: The Alpine MRX-V60 offers a wide
frequency range (5 Hz-45 kHz, +0/-3 dB), much wider than the range of human
Auto Turn On: When using the speaker level inputs the X-Power
amplifiers automatically turn on when voltage is detected on the signal inputs,
making them an easy factory system upgrade.
Low Output Impedance: With low output impedance, the MRX-V60
outputs tightly controlled bass, with a damping Factor rated at greater than 500
for the front and rear channels, greater than 1000 for the subwoofer channel.
LED: The top panel LED power indicator glows blue when the
amplifier is turned on.
Gain: The MRX-V60 provides independent rotary controls for
the front, rear, and subwoofer channels to set the amplifier's gain according
to the level of the incoming signal. The line-level input gain settings are
continuously variable from 200 mV to 4.0V; the speaker-level input gain settings
are continuously variable from 500 mV to 10.0V.
Crossovers: The amplifier features independent crossovers
for the front, rear, and sub channels:
- Front: the front channels have a high pass crossover
that can be turned on/off; the crossover point is continuously variable from
50 to 400 Hz and the slope is 12 dB/oct
- Rear: the rear channels have a high pass crossover that
can be turned on/off; the crossover point is continuously variable from 50
to 400 Hz and the slope is 12 dB/oct
- Sub: the subwoofer's low-pass crossover cannot be
bypassed; it's continuously variable from 50 to 400 Hz and the slope is 12
Subsonic Filter: The subwoofer section also has a 24 dB/oct
subsonic filter, continuously variable from 5 to 30 Hz.
Channel 3/4 Input: Select 3/4 (front and rear inputs are
independent) or 1/2 (the front inputs supply signal to the front and rear channels
and no Y adapters are needed).
Subwoofer Input: Select the subwoofer's RCA input, or have
the signal supplied by the sum of the other four channel inputs.
Bass EQ: Bass boost can be applied to the subwoofer channel;
it's variable from 0 to +12 dB and centered at 50 Hz.
Power/Ground/Remote: The MRX-V60 features set-screw terminals
for the Power, Ground and Remote Turn-on inputs. The Power and Ground terminals
will accommodate up to 4 gauge wire (Alpine recommends 4 gauge minimum), the Remote
Turn-on terminal will accept up to 8 gauge wire.
Speaker Outputs: The screw terminal speaker outputs accept
spade connectors up to 0.33" wide.
Line Level Input: The Alpine MRX-V60 has SIX female RCA jacks
labeled CH1/CH2 (front), CH3/CH4 (rear), and Sub R/L.
Speaker Level Input: Use the included speaker level input
harnesses if the connected radio has no preamp outputs.
Fuses: The amp is protected by two chassis mounted 30-amp ATO fuses.
Remote Bass Control (optional): Alpine's wired remote (item number
500RUXKNOB, sold separately) offers control of the subwoofer output level from the
front of your vehicle for remote bass adjustments.