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2003 Mitsubishi Eclipse Spyder

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Use our shopping filters to find the right 2/3/4-channel amp to power upgraded speakers properly.

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Amps for Adding Speakers for 2003 Mitsubishi Eclipse Spyder

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Rockford Fosgate M2-300X4 with Amplifier Wiring Kit

300 Watt 4-channel marine amplifier

M2-300X4, XKIT44 big
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Rockford Fosgate M2-300X4 with Amplifier Wiring Kit

300 Watt 4-channel marine amplifier

• 50 Watts x 4 @ 4 ohm<
• 75 Watts x 4 @ 2 ohm
• 150 Watts x 2 @ 4 ohm Bridged/Mono
• 4-Channel Marine Amplifier
• Top Mounted Control Panel
• 2/4 channel input switch

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80
List price $505.98
-19% $409.98

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• 50 Watts x 4 @ 4 ohm<
• 75 Watts x 4 @ 2 ohm
• 150 Watts x 2 @ 4 ohm Bridged/Mono
• 4-Channel Marine Amplifier
• Top Mounted Control Panel
• 2/4 channel input switch

Rockford Fosgate Punch PM500X2 + NVX XKIT42 4 Gauge Amp Wiring Kit

500W Punch Series Class A/B 2-Channel Marine Amplifier

PM500X2, XKIT42 big
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Rockford Fosgate Punch PM500X2 + NVX XKIT42 4 Gauge Amp Wiring Kit

500W Punch Series Class A/B 2-Channel Marine Amplifier

• 150 watts RMS x 2 chan. @ 4 ohm
• 250 watts RMS x 2 chan. @ 2 ohm
• 500 watts RMS x 1 chan. @ 4 ohm Bridged
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

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124
List price $693.98
-17% $577.49

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• 150 watts RMS x 2 chan. @ 4 ohm
• 250 watts RMS x 2 chan. @ 2 ohm
• 500 watts RMS x 1 chan. @ 4 ohm Bridged
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

Lowest price in 30 days

Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

600W 4-Channel Amplifier + NVX 4-Channel L.O.C. + 4 Gauge Amp Kit

P600X4, XFLOC4, BAK44 big
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Rockford Fosgate Punch P600X4 + NVX XFLOC4 Line-Output-Converter + Amp Kit

600W 4-Channel Amplifier + NVX 4-Channel L.O.C. + 4 Gauge Amp Kit

• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

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-17% $510.37

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• 75W x 4-Chan. @ 4 ohm
• 150W x 4-Chan. @ 2 ohm
• Built In NOMAD "Real Time" Analog Computer
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• MESHA3 Reduces MOSFET Temperatures for Improved Durability

Rockford Fosgate M2-750X5 with Amplifier Wiring Kit

750 Watt 5-channel marine amplifier + NVX XKIT46

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Rockford Fosgate M2-750X5 with Amplifier Wiring Kit

750 Watt 5-channel marine amplifier + NVX XKIT46

• 50 Watts x 4 + 200 Watts x 1 @ 4 ohm
• 100 Watts x 4 + 350 Watts x 1 @ 2 ohm
• 200 Watts x 2 + N/A @ 4 ohm Bridged/Mono
• 5-Channel Amplifer
• Element Ready™ design protects against outdoor exposure
• Top Mounted Control Panel

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List price $749.98
-15% $634.98

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• 50 Watts x 4 + 200 Watts x 1 @ 4 ohm
• 100 Watts x 4 + 350 Watts x 1 @ 2 ohm
• 200 Watts x 2 + N/A @ 4 ohm Bridged/Mono
• 5-Channel Amplifer
• Element Ready™ design protects against outdoor exposure
• Top Mounted Control Panel

Rockford Fosgate M2-200X2 + NVX XKIT42 4 Gauge Amp Wiring Kit

200 Watts RMS 2-Channel Marine Amplifier

M2-200X2, XKIT42 big
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Rockford Fosgate M2-200X2 + NVX XKIT42 4 Gauge Amp Wiring Kit

200 Watts RMS 2-Channel Marine Amplifier

• 50 Watts x 2 @ 4 ohm
• 100 Watts x 2 @ 2 ohm
• 200 Watts x 1 @ 4ohm Bridged/Mono
• Full-Range Efficient Class-D
• 2-Channel Element Ready Amplifier
• CEA-2006 Compliant & CE Compliant

• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

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124
List price $443.98
-20% $354.98

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Only 2 Left!

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• 50 Watts x 2 @ 4 ohm
• 100 Watts x 2 @ 2 ohm
• 200 Watts x 1 @ 4ohm Bridged/Mono
• Full-Range Efficient Class-D
• 2-Channel Element Ready Amplifier
• CEA-2006 Compliant & CE Compliant

• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

Lowest price in 30 days

Rockford Fosgate PBR400X4D with NVX 8 Gauge Amp Kit

400W RMS Punch Series Class-D 4-Channel Amplifier

PBR400X4D_XKIT84 big
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Rockford Fosgate PBR400X4D with NVX 8 Gauge Amp Kit

400W RMS Punch Series Class-D 4-Channel Amplifier

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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List price $417.98
-19% $339.98

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• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

Rockford Fosgate PM400X4 with Amplifier Wiring Kit

400W 4-Channel Punch Series Class AB Marine Amplifier

PM400X4, XKIT44 big
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Rockford Fosgate PM400X4 with Amplifier Wiring Kit

400W 4-Channel Punch Series Class AB Marine Amplifier

• RMS: 50 watts x 4 chan. @ 4 ohm, 100 watts x 4 chan. @ 2 ohm, Bridged 200 watts x 2 chan. @ 4 ohm
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

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81
List price $675.98
-19% $549.99

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Ships in 10-14 days

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• RMS: 50 watts x 4 chan. @ 4 ohm, 100 watts x 4 chan. @ 2 ohm, Bridged 200 watts x 2 chan. @ 4 ohm
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

Rockford Fosgate T1000X5AD with Amplifier Wiring Kit

1000W RMS Power-Series Class-AD 5-channel Car Amplifier

T1000X5ad, XKIT46 big
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Rockford Fosgate T1000X5AD with Amplifier Wiring Kit

1000W RMS Power-Series Class-AD 5-channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD Full Range: 2 ohms, Sub: 1 ohm Stable 5-Channel Amplifier

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48
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-16% $949.99

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• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD Full Range: 2 ohms, Sub: 1 ohm Stable 5-Channel Amplifier

Rockford Fosgate R2-300X4 (Open Box, Great)

300W RMS Class D Prime Series 4 Channel Car Amplifier

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Rockford Fosgate R2-300X4 (Open Box, Great)

300W RMS Class D Prime Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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5
List price $309.99
-15% $263.49

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• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Rockford Fosgate T1000X5ad with 15 Band Parametric EQ Digital Signal Processor

1000W Compact Bridgeable Class AD 5-channel Car Amplifier

T1000X5ad, XDSP66BT big DISCONTINUED
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Rockford Fosgate T1000X5ad with 15 Band Parametric EQ Digital Signal Processor

1000W Compact Bridgeable Class AD 5-channel Car Amplifier

• 100 Watts x 4 + 400 Watts x 1 RMS @ 4 ohm
• 100 Watts x 4 + 600 Watts x 1 RMS @ 2 ohm
• Total Peak Power: 1000 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• Dual extruded aluminum heat-sink for extreme heat dissipation
• 1.6"W x 4.3"L x 12"H

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• 100 Watts x 4 + 400 Watts x 1 RMS @ 4 ohm
• 100 Watts x 4 + 600 Watts x 1 RMS @ 2 ohm
• Total Peak Power: 1000 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• Dual extruded aluminum heat-sink for extreme heat dissipation
• 1.6"W x 4.3"L x 12"H

Lowest price in 30 days

Rockford Fosgate Punch P400X4 (Open Box, Great)

400W RMS Class AB Punch Series 4 Channel Car Amplifier

P400X4 big
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Rockford Fosgate Punch P400X4 (Open Box, Great)

400W RMS Class AB Punch Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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20
List price $369.99
-23% $286.16

In stock

Add to Cart

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Lowest price in 30 days

Rockford Fosgate Punch PBR300X2 (Open Box, Great)

300W RMS Class BR Punch Series 2 Channel Car Amplifier

PBR300X2 big
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Rockford Fosgate Punch PBR300X2 (Open Box, Great)

300W RMS Class BR Punch Series 2 Channel Car Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class BR 2 ohm Stable 2-Channel Amplifier

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22
List price $279.99
-24% $212.49

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Rockford Fosgate Prime R2-500X4 (Open Box, Great)

500W RMS Class D Prime Series 4 Channel Car Amplifier

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Rockford Fosgate Prime R2-500X4 (Open Box, Great)

500W RMS Class D Prime Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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-15% $305.99

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• 75 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Rockford Fosgate R2-750X5 (Open Box, Great)

750W RMS Class D Prime Series 5 Channel Car Amplifier

R2-750X5 big
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Rockford Fosgate R2-750X5 (Open Box, Great)

750W RMS Class D Prime Series 5 Channel Car Amplifier

• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 350 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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List price $539.99
-15% $458.99

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• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 350 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Lowest price in 30 days

Rockford Fosgate Punch P600X4 (Open Box, Great)

600W RMS Class AB Punch Series 4 Channel Car Amplifier

P600X4 big
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Rockford Fosgate Punch P600X4 (Open Box, Great)

600W RMS Class AB Punch Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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List price $509.99
-21% $401.66

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• 75 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Lowest price in 30 days

Rockford Fosgate Punch P500X2 (Open Box, Great)

500W RMS Class AB Punch Series 2 Channel Car Amplifier

P500X2 big
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Rockford Fosgate Punch P500X2 (Open Box, Great)

500W RMS Class AB Punch Series 2 Channel Car Amplifier

• 150 watts x 2 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Bridged: 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class A/B 2 ohm Stable 2-Channel Amplifier

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2
List price $429.99
-23% $331.49

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Rockford Fosgate Power T1000-4AD (Open Box, Great)

1000W RMS Class AD Power Series 4 Channel Car Amplifier

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Rockford Fosgate Power T1000-4AD (Open Box, Great)

1000W RMS Class AD Power Series 4 Channel Car Amplifier

• 250 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD 1 ohm Stable 4-Channel Amplifier

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List price $1099.99
-15% $934.99

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• 250 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class AD 1 ohm Stable 4-Channel Amplifier

Rockford Fosgate R2-200X2 (Open Box, Great)

200W RMS Class D Prime Series 2 Channel Car Amplifier

R2-200X2 big
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Rockford Fosgate R2-200X2 (Open Box, Great)

200W RMS Class D Prime Series 2 Channel Car Amplifier

• 50 watts x 2 channel @ 4 ohm
• 100 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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2
List price $239.99
-15% $203.99

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Rockford Fosgate Punch P300X2 (Open Box, Great)

300W RMS Class AB Punch Series 2 Channel Car Amplifier

P300X2 big
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Rockford Fosgate Punch P300X2 (Open Box, Great)

300W RMS Class AB Punch Series 2 Channel Car Amplifier

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class A/B 2 ohm Stable 2-Channel Amplifier

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9
List price $279.99
-24% $212.49

In stock

Add to Cart

Rockford Fosgate Power T400X4ad (Open Box, Great)

400W RMS Class AD Power Series 4 Channel Car Amplifier

T400X4AD big
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Rockford Fosgate Power T400X4ad (Open Box, Great)

400W RMS Class AD Power Series 4 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class AD 2 ohm Stable 4-Channel Amplifier

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List price $569.99
-15% $484.49

In stock

Add to Cart

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class AD 2 ohm Stable 4-Channel Amplifier

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    FAQ for Multi-channel Amplifiers for Adding Speakers in 2003 Eclipse Spyder

    Q: Can I upgrade or change the Multi-channel Amplifiers for Adding Speakers in 2003 Mitsubishi Eclipse Spyder?

    A: Yes this page includes all the best Multi-channel Amplifiers for Adding Speakers that work in your Eclipse Spyder.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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