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Crunch DRA1150.2 Open Box Complete

1100W Max V-Drive Series 2-Channel Class AB Car Audio Amplifier

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1100W Max V-Drive Series 2-Channel Class AB Car Audio Amplifier

• Item Condition: Open Box Complete
• 1100 Watts Max
• 550 Watts x 2 Chan. @ 2 Ohm
• 3-Way System Protection
• Selectable Highpass/Lowpass Filters

• Item Condition: Open Box Complete
• 1100 Watts Max
• 550 Watts x 2 Chan. @ 2 Ohm
• 3-Way System Protection
• Selectable Highpass/Lowpass Filters

FLI Audio FL450S-F2

450W Max Loaded Series 2-Channel Power Amplifier

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450W Max Loaded Series 2-Channel Power Amplifier

FLI Loaded Series 2-Channel Power Amplifier • MOSFET Power Supply • Variable Bass Boost • High Speaker Level Inputs • Illuminated Logo • RCA Low Level Inputs • Variable High-Pass Filter

FLI Loaded Series 2-Channel Power Amplifier • MOSFET Power Supply • Variable Bass Boost • High Speaker Level Inputs • Illuminated Logo • RCA Low Level Inputs • Variable High-Pass Filter

** CLOSEOUT ** Rockford Fosgate P8002

Punch Series 2-Channel Amplifier

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Punch Series 2-Channel Amplifier

CEA compliant • MOSFET power supplies and output stages • MEHSA transfers heat efficiently from the MOSFET devices to the heat sink for high performance • TOPAZ eliminates ground loop noise • trans-ANA circuitry keeps preamp signal clean • Tri-way capable • 200 watts RMS x 2 at 4 ohm

CEA compliant • MOSFET power supplies and output stages • MEHSA transfers heat efficiently from the MOSFET devices to the heat sink for high performance • TOPAZ eliminates ground loop noise • trans-ANA circuitry keeps preamp signal clean • Tri-way capable • 200 watts RMS x 2 at 4 ohm

Pyle PLIPA2

300W 2-Channel Mini Amplifier with iPod Direct Input

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300W 2-Channel Mini Amplifier with iPod Direct Input

• RMS Power: 15W x 2 @ 4 ohm
• Total Peak Power: 150W x 2
• 30-Pin Apple® iPod Connector
• Dimensions: 2.99"W x 3.94"L x 1.49"H

• RMS Power: 15W x 2 @ 4 ohm
• Total Peak Power: 150W x 2
• 30-Pin Apple® iPod Connector
• Dimensions: 2.99"W x 3.94"L x 1.49"H

Autotek M3200.2

3200W Max Mean Machine Series 2-Channel Car Audio Amplifier

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3200W Max Mean Machine Series 2-Channel Car Audio Amplifier

Mean Machine Series 2-Channel Class A/B Car Amplifier • 3200 Watts Max • 800 Watts x 2 Chan. @ 2 Ohm • 4-Way System Protection • Selectable Highpass/Lowpass Filters

Mean Machine Series 2-Channel Class A/B Car Amplifier • 3200 Watts Max • 800 Watts x 2 Chan. @ 2 Ohm • 4-Way System Protection • Selectable Highpass/Lowpass Filters

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300 Watt 2 Channel Amplifier • 110W RMS x 2 @ 2 Ohm • 75W RMS x 2 @ 4 Ohm • Bridged: 150W RMS x 1 @ 4 Ohm • • HPF/LPF (40 - 250Hz) • High and Low Level Inputs • 3-Way Protection

300 Watt 2 Channel Amplifier • 110W RMS x 2 @ 2 Ohm • 75W RMS x 2 @ 4 Ohm • Bridged: 150W RMS x 1 @ 4 Ohm • • HPF/LPF (40 - 250Hz) • High and Low Level Inputs • 3-Way Protection

Boss D800.2

1600W Max, 2-Channel Diablo Series Amplifier (D8002)

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1600W Max, 2-Channel Diablo Series Amplifier (D8002)

Diablo Series 2-Channel Class AB Car Amplifier • 260W x 2 chan. @ 4 ohm • 800W x 2 chan. Max • MOSFET power supply • Remote subwoofer level control • LED power and protection indicators • Variable high/low pass crossovers

Diablo Series 2-Channel Class AB Car Amplifier • 260W x 2 chan. @ 4 ohm • 800W x 2 chan. Max • MOSFET power supply • Remote subwoofer level control • LED power and protection indicators • Variable high/low pass crossovers

Visonik VK1000.2

1000W 2-Channel Premium Car Audio Collection Amplifier

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1000W 2-Channel Premium Car Audio Collection Amplifier

Visonik 2-Channel Power Amplifier • 1000W RMS • 1000W Max • MOSFET P.W.M Power Supply • LED Power and Protect Indicators • Variable Bass Boost • Variable Low-Pass Filter • 2-Channel Operation

Visonik 2-Channel Power Amplifier • 1000W RMS • 1000W Max • MOSFET P.W.M Power Supply • LED Power and Protect Indicators • Variable Bass Boost • Variable Low-Pass Filter • 2-Channel Operation

Lanzar MXA234

2000W Max, 2-Channel Max Series Amplifier (MXA-234)

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2000W Max, 2-Channel Max Series Amplifier (MXA-234)

Max Series 2-Channel Car Amplifier • 200W Max • 200W x 2-Chan. @ 2 Ohm • 150W x 2-Chan. @ 4 Ohm • Phase Shift 0-180° • 3-Way System Protection Circuitry • Stiffly Regulated PWM MOSFET Power Supply

Max Series 2-Channel Car Amplifier • 200W Max • 200W x 2-Chan. @ 2 Ohm • 150W x 2-Chan. @ 4 Ohm • Phase Shift 0-180° • 3-Way System Protection Circuitry • Stiffly Regulated PWM MOSFET Power Supply

Kole Audio QX2-480

480W Max, 2-Channel Amplifier

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480W Max, 2-Channel Amplifier

QX-Series 2-Channel Class AB Car Amplifier • 100W x 2 chan. @ 4 ohm • 125W x 2 chan. @ 2 ohm • 250W x 1 chan. @ 4 ohm • 480W x 1 chan. Max • Pulse width modulated MOSFET power supply • Trimode capable • Preamp RCA outputs

QX-Series 2-Channel Class AB Car Amplifier • 100W x 2 chan. @ 4 ohm • 125W x 2 chan. @ 2 ohm • 250W x 1 chan. @ 4 ohm • 480W x 1 chan. Max • Pulse width modulated MOSFET power supply • Trimode capable • Preamp RCA outputs

Crunch DRA4050.2

4000W Max V-Drive Series 2-Channel Car Audio Amplifier

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4000W Max V-Drive Series 2-Channel Car Audio Amplifier

• 4000 Watts Max
• 2000 Watts x 2 Chan. @ 2 Ohm
• 3-Way System Protection
• Selectable Highpass/Lowpass Filters

• 4000 Watts Max
• 2000 Watts x 2 Chan. @ 2 Ohm
• 3-Way System Protection
• Selectable Highpass/Lowpass Filters

AMP KIT BONUS: Kenwood KAC-7252 with Bass Remote

** FREE 4 GAUGE AMPLIFIER INSTALL KIT **

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** FREE 4 GAUGE AMPLIFIER INSTALL KIT **

2-Channel Bridgeable Amplifier • FREE 4 Gauge Amplifier Kit Included! • Wired Bass Remote with Frequency Control Included • 250W RMS x 2 @ 2 • High and Low Inputs • Adjustable Crossovers and Input Sensitivity

2-Channel Bridgeable Amplifier • FREE 4 Gauge Amplifier Kit Included! • Wired Bass Remote with Frequency Control Included • 250W RMS x 2 @ 2 • High and Low Inputs • Adjustable Crossovers and Input Sensitivity

Massive Audio BX2

480W RMS, 2-Channel Class D BX Series High Performance Car Amplifier

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480W RMS, 2-Channel Class D BX Series High Performance Car Amplifier

• 120W x 2 Chan. @ 4 ohm
• 240W x 2 Chan. @ 2 ohm
• 480W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• 2 or 1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Selectable LPF or HPF

• 120W x 2 Chan. @ 4 ohm
• 240W x 2 Chan. @ 2 ohm
• 480W x 1 Chan. @ 4 ohm
• 3-Way System Protection
• 2 or 1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Selectable LPF or HPF

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60 watts x 2 into 2 ohm • 120 watts x 1 bridged • selectable low-pass crossover • red LED power indicator

60 watts x 2 into 2 ohm • 120 watts x 1 bridged • selectable low-pass crossover • red LED power indicator

Eclipse XA2000

2-Channel Class D ICEpower Technology Amplifier

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2-Channel Class D ICEpower Technology Amplifier

360 watts peak • 150W RMS x 2 chan. • 300W RMS x 1 chan. • High current, high efficiency FET power supply • "Easy Tune" top-mounted controls

360 watts peak • 150W RMS x 2 chan. • 300W RMS x 1 chan. • High current, high efficiency FET power supply • "Easy Tune" top-mounted controls

Alphasonik PMZ6002A

480W RMS, 2-Channel Car Amplifier

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480W RMS, 2-Channel Car Amplifier

2-Channel class A/B bipolar amplifier • 150 watts x 2 at 4 ohm • 240 watts x 2 at 2 ohm • 480 watts bridged at 4 ohm • Built in crossover • 4-way protection circuitry • RCA input and output jacks

2-Channel class A/B bipolar amplifier • 150 watts x 2 at 4 ohm • 240 watts x 2 at 2 ohm • 480 watts bridged at 4 ohm • Built in crossover • 4-way protection circuitry • RCA input and output jacks

Blaupunkt VA2100

Velocity Series 2-Channel Amplifier

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Velocity Series 2-Channel Amplifier

400 watts MAX, Class A/B Velocity Series 2-Channel Amplifier • 150 watts x 2 chan. @ 2 ohm • 300 watts x 1 chan. Bridged RMS @ 4 ohm • MOSFET Power Supply • CEA-2006 Compliant • Short Circuit Protection and High, Low, Reverse Voltage Protection • RCA Type Input/Output

400 watts MAX, Class A/B Velocity Series 2-Channel Amplifier • 150 watts x 2 chan. @ 2 ohm • 300 watts x 1 chan. Bridged RMS @ 4 ohm • MOSFET Power Supply • CEA-2006 Compliant • Short Circuit Protection and High, Low, Reverse Voltage Protection • RCA Type Input/Output

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800W High Performance 2 Channel Amplifier • 400W x 2 power output • polished chrome finish with plexiglas panel • remote control bass boost • fully adjustable x-over • variable gain control • MOSFET PWM power supplies

800W High Performance 2 Channel Amplifier • 400W x 2 power output • polished chrome finish with plexiglas panel • remote control bass boost • fully adjustable x-over • variable gain control • MOSFET PWM power supplies

Hifonics X200.2

400W BRUTUS X-14 Series 2-Channel Class AB Amplifier

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400W BRUTUS X-14 Series 2-Channel Class AB Amplifier

• RMS Power: 100W x 2 @ 4 ohm, 200W x 2 @ 2 ohm, 400W x 1 @ 4 ohm Bridged
• Total Peak Power: 400W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 7.09"W x 2.5"H x 9.49"L

• RMS Power: 100W x 2 @ 4 ohm, 200W x 2 @ 2 ohm, 400W x 1 @ 4 ohm Bridged
• Total Peak Power: 400W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 7.09"W x 2.5"H x 9.49"L

Planet Audio TQ302

300W Max Torq Series 2-Channel MOSFET Power Amplifier with Remote

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300W Max Torq Series 2-Channel MOSFET Power Amplifier with Remote

Max Torq Series 2-Channel Class AB MOSFET Power Amplifier • 75W x 2 chan @ 4 ohm • 150W x 2 chan @ 2 ohm • MOSFET Power Supply • Variable Bass Boost • Illuminated Planet Audio Logo • Chrome-Plated Terminals

Max Torq Series 2-Channel Class AB MOSFET Power Amplifier • 75W x 2 chan @ 4 ohm • 150W x 2 chan @ 2 ohm • MOSFET Power Supply • Variable Bass Boost • Illuminated Planet Audio Logo • Chrome-Plated Terminals

Power Acoustik GT2-600

600W Max, 2-Channel Gothic Series Class AB Car Amplifier

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600W Max, 2-Channel Gothic Series Class AB Car Amplifier

• 4 ohm: 90 watts x 2 chan.
• 2 ohm: 120 watts x 2 chan.
• Bridged, 4 ohm: 240 watts x 1 chan.
• Max power output: 600 watts

• 4 ohm: 90 watts x 2 chan.
• 2 ohm: 120 watts x 2 chan.
• Bridged, 4 ohm: 240 watts x 1 chan.
• Max power output: 600 watts

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2 Channel Class A/B Amplifier • 75W RMS x 2 @ 4 Ohm • 0 -12 dB Bass Boost • 3-Way Protection • Soft Start • 1 Pair RCA Outputs • High/Low Pass Filters

2 Channel Class A/B Amplifier • 75W RMS x 2 @ 4 Ohm • 0 -12 dB Bass Boost • 3-Way Protection • Soft Start • 1 Pair RCA Outputs • High/Low Pass Filters

1000 watts bridgeable 2-channel amplifier

Precision Power PPI S420.2

420W Max, Sedona Series 2-Channel Amplifier

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420W Max, Sedona Series 2-Channel Amplifier

• 70W x 2-Chan. @ 4 Ohm
• 100W x 2-Chan. @ 2 Ohm
• MOSFET Power Supply
• Variable Bass Boost
• Brushed Aluminum Finish
• Platinum 4 AWG Power Block
• Remote Gain Control Included

• 70W x 2-Chan. @ 4 Ohm
• 100W x 2-Chan. @ 2 Ohm
• MOSFET Power Supply
• Variable Bass Boost
• Brushed Aluminum Finish
• Platinum 4 AWG Power Block
• Remote Gain Control Included

Rockford Fosgate Punch P500-2 R/B

1000W Max, Punch Series Compact 2-Channel Amplifier

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1000W Max, Punch Series Compact 2-Channel Amplifier

Punch Series 2-Channel Class AB Car Amplifier • 125W x 2 chan. @ 4 ohm • 250W x 2 chan. @ 2 ohm • 500W x 2 chan. Max • MOSFET power supply • RCA Pass-thru outputs

Punch Series 2-Channel Class AB Car Amplifier • 125W x 2 chan. @ 4 ohm • 250W x 2 chan. @ 2 ohm • 500W x 2 chan. Max • MOSFET power supply • RCA Pass-thru outputs

Alpine PDX-2.150

2-Channel Power Density Digital Amplifier (PDX2.150)

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2-Channel Power Density Digital Amplifier (PDX2.150)

2-Channel Power Density Digital Amplifier • 150W x 2 chan. @ 4 Ohm • quick connect speaker connectors • MOSFET power supply • Class D design • RCA inputs • stackable installation design

2-Channel Power Density Digital Amplifier • 150W x 2 chan. @ 4 Ohm • quick connect speaker connectors • MOSFET power supply • Class D design • RCA inputs • stackable installation design

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300W Peak / 150W RMS x 2 (4 ohm) channel high power amplifier • 600W Bridged RMS Power • selectable high-pass/low-pass crossovers • preamp outputs • MOSFET power supply • built-in Bass EQ circuit • bass engine ready • top panel power LED

300W Peak / 150W RMS x 2 (4 ohm) channel high power amplifier • 600W Bridged RMS Power • selectable high-pass/low-pass crossovers • preamp outputs • MOSFET power supply • built-in Bass EQ circuit • bass engine ready • top panel power LED

Boss PT2200

2200W 2-Channel Phantom Series Full Range Class AB Amplifier

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2200W 2-Channel Phantom Series Full Range Class AB Amplifier

• RMS: 550W x 2 @ 4 ohm
• Total Peak Power: 2200W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 16.00" L x 2.25" H

• RMS: 550W x 2 @ 4 ohm
• Total Peak Power: 2200W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 16.00" L x 2.25" H

EXCLUSIVE

Nitro BMW-486 + Amplifier Kit

2000W Max, 2-Channel Amplifier with Bass Remote and Included 4 Gauge Amplifier Kit

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2000W Max, 2-Channel Amplifier with Bass Remote and Included 4 Gauge Amplifier Kit

2000W 2-Channel Amplifier • Built-in Full/HP/LP crossovers • blue neon lit illumination • 2-8 ohm load capacity • gold-plated RCA, power and speaker connections • Included 4 Gauge Amplifier Kit

2000W 2-Channel Amplifier • Built-in Full/HP/LP crossovers • blue neon lit illumination • 2-8 ohm load capacity • gold-plated RCA, power and speaker connections • Included 4 Gauge Amplifier Kit

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90W x 2 RMS • Tri Mode Operation • Remote Subwoofer Level Control • Bass Boost

90W x 2 RMS • Tri Mode Operation • Remote Subwoofer Level Control • Bass Boost

Planet Audio TRQ2.1200

1200W 2 Channel Torque Series Class A/B Car Amplifier

5-Year Manufacturer's Extended Warranty When Bought Here!

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1200W 2 Channel Torque Series Class A/B Car Amplifier

• RMS Power: 300W x 2 @ 4 ohm, 600W x 2 @ 2 ohm
• Total Peak Power: 1200W
• Variable Low-Pass Filter (50-250 Hz, 24 dB/octave)
• Dimensions: 9.5"W x 12.25"L x 2.125"H

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5-Year Manufacturer's Extended Warranty When Bought Here!

• RMS Power: 300W x 2 @ 4 ohm, 600W x 2 @ 2 ohm
• Total Peak Power: 1200W
• Variable Low-Pass Filter (50-250 Hz, 24 dB/octave)
• Dimensions: 9.5"W x 12.25"L x 2.125"H

Power Acoustik LFA2-1800

1800W Max, 2-Channel LFA Series (Loud Freeking Amplifiers) Amplifier

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1800W Max, 2-Channel LFA Series (Loud Freeking Amplifiers) Amplifier

LFA Series 2-Channel Class AB Car Amplifier • 300W x 2 chan. @ 4 ohm • 380W x 2 chan. @ 2 ohm • 760W x 1 chan. @ 4 ohm • 900W x 2 chan. Max • Wired remote bass level control included • Subsonic Filter (30-175 Hz)

LFA Series 2-Channel Class AB Car Amplifier • 300W x 2 chan. @ 4 ohm • 380W x 2 chan. @ 2 ohm • 760W x 1 chan. @ 4 ohm • 900W x 2 chan. Max • Wired remote bass level control included • Subsonic Filter (30-175 Hz)

Lanzar VBP231

1000W Max, Vibe Pro Series 2-Channel High Power MOSFET Amplifier

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1000W Max, Vibe Pro Series 2-Channel High Power MOSFET Amplifier

Vibe Pro Series 2-Channel Car Amplifier • 250W x 2-Chan. @ 4 Ohm • 450W x 2-Chan. @ 2 Ohm • Preamp RCA Outputs To Daisy Chain Multiple Amps • 2-Way System Protection Circuitry • DC To DC Switching Power Supply

Vibe Pro Series 2-Channel Car Amplifier • 250W x 2-Chan. @ 4 Ohm • 450W x 2-Chan. @ 2 Ohm • Preamp RCA Outputs To Daisy Chain Multiple Amps • 2-Way System Protection Circuitry • DC To DC Switching Power Supply

Crunch PZ800.2 Open Box Complete

800W Max PowerZone Series 2-Channel Car Audio Amplifier

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800W Max PowerZone Series 2-Channel Car Audio Amplifier

• Item Condition: Open Box Complete
• 800 Watts Max
• 400 Watts x 2 Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

• Item Condition: Open Box Complete
• 800 Watts Max
• 400 Watts x 2 Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

Kicker 08ZX350.2

350W RMS, 2-Channel ZX Series Amplifier (ZX350.2, 08ZX3502, ZX3502)

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350W RMS, 2-Channel ZX Series Amplifier (ZX350.2, 08ZX3502, ZX3502)

ZX Series 2-Channel Class AB Car Amplifier • 110W x 2 chan. @ 4 ohm • 175W x 2 chan. @ 2 ohm • 350W x 1 chan. @ 4 ohm • 350W x 2 chan. Max • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

ZX Series 2-Channel Class AB Car Amplifier • 110W x 2 chan. @ 4 ohm • 175W x 2 chan. @ 2 ohm • 350W x 1 chan. @ 4 ohm • 350W x 2 chan. Max • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

SPL FX2-1250 Open Box Complete

1250W Max, FX Series 2-Channel Amplifier

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1250W Max, FX Series 2-Channel Amplifier

• Open Box Complete
1250W Max, FX Series 2-Channel • 4 ohm: 220 watts x 2 chan. • 2 ohm: 280 watts x 2 chan. • Bridged, @ 4 ohm: 360 watts x 1 chan • S/N Ratio: 98dB • THD: 0.02%

• Open Box Complete
1250W Max, FX Series 2-Channel • 4 ohm: 220 watts x 2 chan. • 2 ohm: 280 watts x 2 chan. • Bridged, @ 4 ohm: 360 watts x 1 chan • S/N Ratio: 98dB • THD: 0.02%

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800W 2 channel Crystal Series Amplifier • 400W x 2 channel power output • plexiglas top panel • fully adjustable electronic crossover • variable bass boost • digital VU level meters • MOSFET PWM Power Supply • LED power and protection indicators • Hi/Lo l

800W 2 channel Crystal Series Amplifier • 400W x 2 channel power output • plexiglas top panel • fully adjustable electronic crossover • variable bass boost • digital VU level meters • MOSFET PWM Power Supply • LED power and protection indicators • Hi/Lo l

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    FAQ Frequently asked questions in Discontinued 2-Channel Amplifiers


    2 Channel Amplifiers Frequently Asked Questions (FAQ)
    Yes, many 2-channel amplifiers can be used in bridge mode to combine the power of both channels, making them suitable for powering a subwoofer and speakers at the same time. However, it's essential to check the amplifier's specifications and power ratings to ensure they match the impedance and power requirements of your subwoofer and speakers. Additionally, using a 2-channel amplifier for this purpose can result in power distribution challenges, as both the subwoofer and speakers may not receive optimal power for their specific frequency ranges.
    A 2-channel amplifier, also known as a stereo amplifier, is designed to power two speakers, typically a pair of front speakers or a pair of rear speakers. On the other hand, a mono amplifier, also known as a single-channel amplifier, is dedicated to powering a single speaker, usually a subwoofer. The primary difference lies in their application and configuration. While a 2-channel amplifier is suitable for powering multiple speakers, a mono amplifier is more focused on delivering high power output to a single speaker for deep bass reproduction.
    Yes, upgrading your factory car audio system with a 2-channel amplifier can significantly enhance the overall sound quality and volume. Factory audio systems often lack the power needed to drive aftermarket speakers properly. Adding a 2-channel amplifier allows you to provide more power to your front or rear speakers, resulting in improved clarity, detail, and dynamics. It's an excellent way to breathe new life into your car's audio system without the need for extensive modifications. Be sure to select an amplifier with an appropriate power rating and ensure compatibility with your existing audio setup.
    To ensure compatibility, consider factors like power output, impedance, and form factor. Check the power ratings of your speakers and subwoofers, and choose an amplifier that can deliver the required power at the appropriate impedance. Additionally, verify that the amplifier's dimensions fit within the available space in your vehicle. Some 2-channel amplifiers come with adjustable crossovers and gain controls, allowing you to fine-tune the audio output to match your specific setup. If you have any uncertainties, consult with an audio specialist or contact Sonic Electronix customer support for expert assistance.
    While 2-channel amplifiers can provide power to two speakers, they are typically not designed for bi-amping applications. Bi-amping involves using separate amplifiers for the tweeters and woofers of a speaker system to improve audio performance. To bi-amp speakers, you would require an additional set of channels dedicated to each driver. In this case, a multi-channel amplifier or a combination of mono and stereo amplifiers is more suitable. If bi-amping is a priority, consider looking into multi-channel amplifiers that offer specific configurations for bi-amping setups. Always check the specifications and features of the amplifier to ensure it can support bi-amping before making a purchase.
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