About the Profile California 640sx
Was: $209.95
Now: $199.95
You save $10!
Profile California Series amps rule in the watts-per-buck competition! The 640sx multichannel amplifier comes with built-in variable low- and high-pass crossovers, individually-selectable front and rear so you can get the most out of your vehicle's speaker system.
The 640sx features set-screw terminals for power, ground, turn-on, and speaker outputs for easy, secure connections. Crank up your low-end impact with a variable 0-12 dB bass boost at 45 Hz. And the way-cool, illuminated power strip still glows red! Profile provides a 2-year warranty for Crutchfield customers.
Details:- 2-, 3-, 4-channel or Tri-Way output
- 225 watts x 2 in bridged (2-channel) mode
- 110 watts x 4 into 2 ohms
- requires 4-gauge power and ground leads wiring and hardware not included with amplifier
- two 30-amp fuses
- continuously-variable high-pass and low-pass crossovers (40-130 Hz at 12 dB per octave)
- 2-ohm stable in stereo
- gold-plated high-current cable inputs for maximum current transfer
- continuously-variable (0-12 dB) bass boost at 45 Hz
- 105 dB signal-to-noise ratio
- 13-3/4"W x 2-3/8"H x 9-13/16"D
- 2-year warranty
What's in the box:
Profile California 640sx owner's manual
- Blue amplifier with silver trim/dark blue and red graphics/six segment LED power light; 2- 25 amp blade fuse in chassis; 1 spare 25 amp blade fuse; Allen wrench; 4 self tapping screws and washers for mounting; Instruction manual; Package of Silica-Gel
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More details on the Profile California 640sx
Features & specs
Performance | ||
---|---|---|
RMS Power Output (Watts x Channels) |
75 x 4 | |
Peak Power Output (Watts x Channels) | 150 x 4 | |
Power at 2 Ohms (Watts x Channels) | 110 x 4 | |
Power at 1 Ohm (Watts x Channels) | --- | |
Bridged Power (Watts x Channels) | 225 x 2 | |
Minimum Impedance Bridged | 4 | |
Minimum Impedance Unbridged | 2 | |
Minimum Impedance | 2 | |
Best Frequency Response | N/A | |
THD at Rated RMS Power | 0.07% | |
Signal to Noise Ratio | 105 dB | |
Input Voltage | 14.4v | |
Features | ||
Amplifier Class | AB | |
Low-Pass Crossover Frequency | 40-130 Hz | |
Low-Pass Slope (dB/octave) | 12 dB | |
High-Pass Crossover Frequency | 40-130 Hz | |
High-Pass Slope (dB/octave) | 12 dB | |
Bass Boost | 0-12 dB | |
Bass Boost Frequency | 45 Hz | |
Fan Cooled | No | |
Fuse Rating | 25 x 2 | |
Speaker Level Inputs | --- | |
Preamp Outputs | No | |
Width (inches) | 9-13/16 | |
Height (inches) | 2-3/8 | |
Depth (inches) | 13-3/4 | |
Parts Warranty | 2 YEARS* | |
Labor Warranty | 2 YEARS* |
Product Research
Controls
Inputs/Outputs
Special Features
Specifications
Gain controls: Variable gain controls (one for front and one for rear channels )
Filter switches: Allows you to select low pass, off (full range) or high pass. The slope is 12dB per octave. One for front and one for rear channels.
X-over frequency controls: Variable adjustment knobs allows you to select a crossover point of 40Hz - 130 Hz for either the low pass or high pass crossover. One for front and one for rear channels.
Bass Boost: Variable adjustment knobs allows you to select a bass boost of 0dB to 12dB (centered at 45 Hz). One for front and one for rear channels.
Preamp inputs: Gold plated left and right stereo RCA for channels 1/2 and channels 3/4. If your source unit has only one set of preamp outputs you must use RCA "Y" adapters
There is a gold plated set screw terminal for power, remote and ground. This will accept wire up to 8 gauge.
There is a gold plated set screw terminals for speaker output (L+/L-/R+/R-). It will accept wire up to 8 gauge. In order to bridge the amplifier use the L+/R- speaker outputs; one for CH1/2 and one for CH3/4.
Power strip: There is a six segment LED that lights up when power is turned on.
Three way protection: This protection consists of DC, short circuit and thermal protection.
Power supply: The amplifier utilizes a Mosfet power supply.
Improved S/N Ratio: The original version of this amplifier had a signal-to-noise ratio of 95dB. A running change in the design of the amplifier has improved the S/N ratio to 105dB. The running change was made late in 1999, and the amplifiers with the improved S/N ratio began shipping soon afterwards.
More specifications:
- Supply Voltage: 10.5-15 volts
- Channel separation: 85dB
- Idle current draw: 430-870 mA
- Maximum output: 100 watts x 4
- RMS output at 4 ohms: 75 watts x 4
- RMS output at 2 ohms: 110 watts x 4
- Bridged output : 225 x 2 at 4 ohms
Note that the minimum impedance allowed is 2 ohms in stereo mode and 4 ohms bridged.
Warranty: on this amplifier is one year parts and labor. Profile will extend the warranty to two years parts and labor if the unit is purchased from Crutchfield!
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