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Amplifiers:  4 Channel Amplifiers
JL Audio G4500
JL Audio 500 Watt 4-Channel Ampliifier

Class A/B Four-Channel System Amplifier 
Patented Technology: Absolute Symmetry™ Class A/B Circuit (U.S. Patent #6,294,959)
Differential-Balanced Input Topology: For superior noise immunity, RCA jack inputs 
On-board Crossover: State-variable, 12dB / octave Butterworth with continuously variable cutoff frequency selection from 50 – 200 Hz. Configurable as Low-Pass or High-Pass 
Preamp Output: Pass-through type 
Bass EQ (Channels 3&4 only): +6 dB fixed frequency, fixed 'Q' (defeatable) with port for optional remote bass control (RBC-1) 
Rated Power 14.4 V Stereo: 80 W RMS x 4 @ 4 ohm 125 W RMS x 4 @ 2 ohm 
Rated Power 14.4 V Bridged : 160 W RMS x 2 @ 8 ohm 250 W RMS x 2 @ 4 ohm 
Rated Power 12.5 V Stereo: 60 W RMS x 4 @ 4 ohm 90 W RMS x 4 @ 2 ohm 
Rated Power 12.5 V Bridged: 120 W RMS x 2 @ 8 ohm 180 W RMS x 2 @ 4 ohm 
THD at Rated Power: <1% THD, 20 Hz - 20 kHz 
S/N Ratio: >104 dB referred to rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth) 
Dimensions (L x W x H): 13.80 in. x 9.25 in. x 2.50 in.

Suggested Retail: $399.99
Our Price: $349.99
Recommended Accessories:
JL Audio 300/4v2
JL Audio 300 Watt 4-Channel Ampliifier

Class A/B Four-Channel Full-Range Amplifier 
Patented Technology: Absolute Symmetry™ Class A/B Circuit (U.S. Patent #6,294,959)
Differential-Balanced Input Topology: 2 pair of inputs 
On-board Crossover: Fully-variable (50 Hz - 5 kHz), selectable-slope / mode (12 or 24 dB / octave, LP or HP) for each pair of channels 
R.I.P.S. Regulated, Intelligent Power Supply, RealSink™ Heat-Management System 
Rated Power (4 Channel Mode): 75 W RMS x 4 @ 1.5 ohm-4 ohm (11V-14.5V) 
Rated Power (Bridged to 2 Channel): 150 W RMS x 2 @ 3 ohm-8 ohm (11V-14.5V) 
THD at Rated Power: <0.03% @ 4 ohm per ch. 
S/N Ratio: >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) 
Dimensions (L x W x H): 13.40 in. x 9.25 in. x 2.36 in.

Suggested Retail: $599.99
Our Price: $559.99
Recommended Accessories:
JL Audio HD600/4
JL Audio 600 Watt 4-Channel Ampliifier

Class D Four-Channel Full-Range Amplifier 
Patented Technology: Single Cycle Control™ (U.S. Patent #6,084,450*)
Differential-Balanced Input Topology: 2 pairs of inputs 
On-board Crossover: State-variable, 12 dB/octave Butterworth or 24 dB/octave Linkwitz-Riley, Low-Pass or High-Pass for each pair of channels 
R.I.P.S. Regulated, Intelligent Power Supply, RealSink™ Heat-Management System,
Rated Power (4 Channel Mode): 150 W RMS x 4 @ 1.5 ohm-4 ohm (11V-14.5V) 
Rated Power (Bridged to 2 Channel): 300 W RMS x 2 @ 3 ohm-8 ohm (11V-14.5V) 
THD at Rated Power: <0.03% @ 4 ohm per ch. 
S/N Ratio: >110 dB below rated power
Dimensions (L x W x H): 10.74 in. x 8.29 in. x 1.93 in.

Suggested Retail:  $849.99
Our Price:  $799.99
Recommended Accessories:
JL Audio 450/4v2
JL Audio 450 Watt 4-Channel Ampliifier

Class A/B Four-Channel System Amplifier 
Patented Technology: Absolute Symmetry™ Class A/B Circuit (U.S. Patent #6,294,959)
Differential-Balanced Input Topology: 2 pair of inputs 
Channel 1&2 Crossover: Fully-variable (50 Hz - 5 kHz), selectable-slope (12 or 24 dB per octave) LP, BP or HP 
Channel 3&4 Crossover: Fully-variable (50 Hz - 5 kHz), selectable-slope (12 or 24 dB per octave) HP 
Preamp Output: 2-channel (Pass-through) 
Bass EQ: +6 dB (variable boost up to +15 dB with Remote Bass Option) 
Infrasonic Filter (Channels 1&2 only): Defeatable 24dB / octave at 30 Hz 
R.I.P.S. Regulated, Intelligent Power Supply, RealSink™ Heat-Management System 
Rated Power Channels 1&2 stereo mode: 150 W RMS x 2 @ 1.5 ohm – 4 ohm (11 – 14.5V) 
Rated Power Channels 1&2 bridged mode: 300 W RMS x 1 @ 3 ohm – 8 ohm (11 – 14.5V) 
Rated Power Channels 3&4 stereo mode: 75 W RMS x 2 @ 1.5 ohm – 4 ohm (11 – 14.5V) 
Rated Power Channels 3&4 bridged mode: 150 W RMS x 1 @ 3 ohm – 8 ohm (11 – 14.5V) 
THD at Rated Power (All Channels): <0.03% @ 4 ohm 
S/N Ratio (All Channels): >108.5 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) 
Dimensions (L x W x H): 19.70 in. x 9.25 in. x 2.36 in.

Suggested Retail:  $899.99
Our Price:  $849.99
Recommended Accessories:
Rockford Fosgate Prime R300-4  
Prime 300 Watt 4-Channel Amplifier

Rockford Fosgate amplification at an unbelievable value. The R300-4 4-channel amplifier is so versatile, it will be the only amplifier your system needs. Full-range or component speakers on the front channels and a single R1S410 10" or R1S412 12" woofer bridged/mono on the rear. Consider your system clean, loud and done!. Check out our RFTECH:Woofer WiringWizard to get the most out of your amplifier.
50 Watts RMS x 4 @ 4-Ohms
75 Watts RMS x 4 @ 2-Ohms
150 Watts RMS x 2 @ 4-Ohms Bridged/Mono
Front Channels
High-Pass (HP): 80Hz @ 12dB/octave Butterworth
Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth
Rear Channels
High-Pass (HP): 80Hz @ 12dB/octave Butterworth
Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth
Tone Controls Front Channels
Punch Bass: 0dB/+6dB/+12dB @ 45Hz
Rear Channels
Punch Bass: 0dB/+6dB/+12dB @ 45Hz
Function works when crossover in (LP) position
Dimensions (H x L x W): 2.40 x 7.67 x 17.09 (in)

Suggested Retail:  249.99
Our Price:  $199.99
Recommended Accessories:
Rockford Fosgate Punch P400-4  
400 Watt 4-Channel Amplifier

The P400-4 is perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Simply drop a pair of component speakers on the front channels and subs on the rear and BOOM - you got "The PUNCH." With its flexible design, the P400-4 is an excellent amplifier choice for virtually any vehicle.
50W x 4 @ 4-Ohms RMS
100W x 4 @ 2-Ohms RMS
200W x 2 @ 4-Ohms bridged RMS
Crossover Controls Front High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth
Front Low-Pass (LP): 50-500Hz 12dB/octave Butterworth
Rear High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth
Rear Low-Pass (LP): 50-500Hz 12dB/octave Butterworth
Tone Controls Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Front Punch EQ2 Treble: 0dB to +12dB @ 12kHz
Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Rear Punch EQ2 Treble: 0dB to +12dB @ 12kHz
Function depends upon LP/AP/HP switch position
Dimensions (H x L x W): 2.25 x 7.625 x 13.02 (in)

Suggested Retail:  429.99
Our Price:  $379.99
Recommended Accessories:
Rockford Fosgate Power T400-4  
400 Watt 4-Channel Amplifier

The T400-4 amplifier is perfect for front/rear fading stereo systems or when dedicated amplification is required between front stage speakers and rear subwoofer(s). Thanks to the Dynamic Thermal Management, the small chassis design insures it can be installed in any location – like under front seats.
60W x 4 @ 4-Ohms RMS
100W x 4 @ 2-Ohms RMS
200W x 2 @ 4-Ohms bridged RMS
2-Ohms x 2 bridged Stable
Crossover Controls Front High-Pass (HP): 50-500Hz 24dB/octave Butterworth
Front Low-Pass (LP): 50-500Hz 24dB/octave Butterworth
Rear High-Pass (HP): 50-500Hz 24dB/octave Butterworth
Rear Low-Pass (LP): 50-500Hz 24dB/octave Butterworth
Tone Controls Front Channels - Punch EQ
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Rear Channels - Punch EQ
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Dimensions (H x L x W): 2.14 x 8.14 x 13.66 (in) 

Suggested Retail:  469.99
Our Price:  $419.99
Recommended Accessories:
Rockford Fosgate Power T600-4  
600 Watt 4-Channel Amplifier

The T600-4 amplifier offers the perfect balance of power output and compact design required for high performance audio systems. The 4-channel configuration allows fine tuning adjustments between front stage component systems and rear surround speakers. The built-in crossover also allows the rear channels to be configured for running one or two subwoofers.
100W x 4 @ 4-Ohms RMS
150W x 4 @ 2-Ohms RMS
300W x 2 @ 4-Ohms bridged RMS
2-Ohms x 2 bridged Stable
Crossover Controls Front High-Pass (HP): 50-500Hz 24dB/octave Butterworth
Front Low-Pass (LP): 50-500Hz 24dB/octave Butterworth
Rear High-Pass (HP): 50-500Hz 24dB/octave Butterworth
Rear Low-Pass (LP): 50-500Hz 24dB/octave Butterworth
Tone Controls Front Channels - Punch EQ
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Rear Channels - Punch EQ
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Dimensions (H x L x W):  2.14 x 8.14 x 14.91 (in) 

Suggested Retail:  729.99
Our Price:  $649.99
Recommended Accessories:
Rockford Fosgate Power T1000-4  
1000 Watt 4-Channel Amplifier.
 
Need a powerful amplifier to drive a 2-ohm stereo speaker system with a 4-ohm bridged/mono woofer load? This is the perfect amplifier for you, and with 1,000 watts divided between 4 channels, you will never run out of bass pumping power.
150 Watts RMS x 4 @ 4-Ohms
250 Watts RMS x 4 @ 2-Ohms
500 Watts RMS x 2 @ 4-Ohms bridged/mono
STABLE @ 2-Ohms x 2 bridged/mono (reduced thermal time may occur)
Crossover Controls Front Channels: High-Pass (HP): 50Hz-500Hz @ 24dB/octave Butterworth
Low-Pass (LP): 50Hz-500Hz @ 24dB/octave Butterworth
Rear Channels:
High-Pass (HP): 50Hz-500Hz @ 24dB/octave Butterworth
Low-Pass (LP): 50Hz-500Hz @ 24dB/octave Butterworth
Tone Controls Front Channels:
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Rear Channels:
Treble: 0dB to +12dB @ 12kHz
Bass: 0dB to +18dB @ 45Hz
Function depends upon crossover setting (LP/AP/HP)
Dimensions (H x L x W):  2.14 x 8.14 x 21.875 (in)  

Suggested Retail:  1849.99
Our Price:  $1599.99
Recommended Accessories:
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