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1987 Saab 900

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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 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 1987 Saab 900

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.
Punch Series (32)
V Series (22)
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Marine V Series (7)
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BX Series (5)
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XQ Series (1)
ZXI Series (1)
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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DS18 NXL-X850.4D (Hydro) with NVX 8 Gauge Amp Kit

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

NXLX8504D_XKIT84 big
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DS18 NXL-X850.4D (Hydro) with NVX 8 Gauge Amp Kit

1600W Peak Class D HYDRO Series 4-Channel Marine and Powersports Amplifier

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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-7% $715.94

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• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 1600 watts
• IPX6 waterproof rating
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Cerwin Vega SRPM700.4DW with NVX 8 Gauge Amp Kit

700W RMS Class-D 4-Channel 2-Ohm Stable Marine Amplifier - White

SRPM700.4DW, XKIT84 big
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Cerwin Vega SRPM700.4DW with NVX 8 Gauge Amp Kit

700W RMS Class-D 4-Channel 2-Ohm Stable Marine Amplifier - White

• 100 Watts RMS x 4 @ 4 ohm
• 150 Watts RMS x 4 @ 2 ohm
• Conformal Coating Protects Against Moisture
• Aluminum Heatsink
• Includes Amplifier Wiring Kit

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-31% $429.99

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• 100 Watts RMS x 4 @ 4 ohm
• 150 Watts RMS x 4 @ 2 ohm
• Conformal Coating Protects Against Moisture
• Aluminum Heatsink
• Includes Amplifier Wiring Kit

NVX - Worth the Envy - Direct to Consumer Car Audio

JBL Apex PA1502 with NVX 8 Gauge Amp Kit

300W RMS Apex Series Class-D Compact 2-Channel Powersports Amplifier

APEXPA1502_XKIT82 big
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JBL Apex PA1502 with NVX 8 Gauge Amp Kit

300W RMS Apex Series Class-D Compact 2-Channel Powersports 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 D 2 ohm Stable 2-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 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 D 2 ohm Stable 2-Channel Amplifier
• Includes Amplifier Wiring Kit

AudioControl ACX-300.4 with Belva 8 Gauge Amp Kit

300 Watt Marine 4-Channel Amplifier

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AudioControl ACX-300.4 with Belva 8 Gauge Amp Kit

300 Watt Marine 4-Channel Amplifier

• 300 Watts @ 2 Ohm
• 175 Watts @ 4 Ohm
• 4/3/2 Channel Amplifier
• Includes Amplifier Wiring Kit

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• 300 Watts @ 2 Ohm
• 175 Watts @ 4 Ohm
• 4/3/2 Channel Amplifier
• Includes Amplifier Wiring Kit

Deaf Bonce MACHETE MFA-5.1000 with Belva 4 Gauge Amp Kit

480W RMS Class D Machete Series 5-Channel Full Range Car Amplifier

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Deaf Bonce MACHETE MFA-5.1000 with Belva 4 Gauge Amp Kit

480W RMS Class D Machete Series 5-Channel Full Range Car Amplifier

• 80 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 120 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 480 watts
• Class D 4 ohm Stable 5-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 80 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 120 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 480 watts
• Class D 4 ohm Stable 5-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Hertz HCP5D with NVX 8 Gauge Amp Kit

Class D 5-Channel Car Subwoofer Amplifier

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Hertz HCP5D with NVX 8 Gauge Amp Kit

Class D 5-Channel Car Subwoofer Amplifier

• 150 Watts RMS x 4 + 200 Watts x 1 @ 4 ohm
• 250 Watts RMS x 4 + 300 Watts x 1 @ 2 ohm
• CEA-2006 Compliant
• Refined Heatsink with High Convection Capability
• Automatic Remote Turn-On/Off function
• Dimensions: 13.58" x 7.48" x 1.97"
• Includes Amplifier Wiring Kit

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82
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-15% $615.07

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• 150 Watts RMS x 4 + 200 Watts x 1 @ 4 ohm
• 250 Watts RMS x 4 + 300 Watts x 1 @ 2 ohm
• CEA-2006 Compliant
• Refined Heatsink with High Convection Capability
• Automatic Remote Turn-On/Off function
• Dimensions: 13.58" x 7.48" x 1.97"
• Includes Amplifier Wiring Kit

Diamond Audio HX400.2 with NVX 8 Gauge Amp Kit

400W RMS HEX Series 2-Channel Full Range Class D Amplifier

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Diamond Audio HX400.2 with NVX 8 Gauge Amp Kit

400W RMS HEX Series 2-Channel Full Range Class D Amplifier

• 200 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 200 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier
• Includes Amplifier Wiring Kit

MB Quart RA1-710.5 with NVX 4 Gauge Amp Kit

350W RMS 5-Channel Reference Series Full Range Class D Car Amplifier

RA17105_XKIT46 big
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MB Quart RA1-710.5 with NVX 4 Gauge Amp Kit

350W RMS 5-Channel Reference Series Full Range Class D Car Amplifier

• 50 watts x 4 channel + 150 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 250 watts x 1 channel @ 2 ohm
• Bridged:100 watts x 4 channel @ 4 ohm + 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 350 watts
• Class D 1-Ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

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List price $549.98
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• 50 watts x 4 channel + 150 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 250 watts x 1 channel @ 2 ohm
• Bridged:100 watts x 4 channel @ 4 ohm + 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 350 watts
• Class D 1-Ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

Hifonics ZD-1750.5D with Amplifier Wiring Kit

1350W RMS Zeus Delta Series Class-D 5-Channel Car Amplifier

ZD-1750.5D, BAK46 big
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Hifonics ZD-1750.5D with Amplifier Wiring Kit

1350W RMS Zeus Delta Series Class-D 5-Channel Car Amplifier

• 100 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 225 watts x 4 channel + 450 watts x 1 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm + 450 watts x 1 channel @ 2 ohm
• Total RMS Power: 1350 watts
• Class D 1 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 100 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 225 watts x 4 channel + 450 watts x 1 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm + 450 watts x 1 channel @ 2 ohm
• Total RMS Power: 1350 watts
• Class D 1 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

DS18 G1000.4D with Belva 4 Gauge Amp Kit

1000 Peak (600W RMS) Class D Gen-X Series 4 Channel Car Amplifier

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DS18 G1000.4D with Belva 4 Gauge Amp Kit

1000 Peak (600W RMS) Class D Gen-X Series 4 Channel Car Amplifier

• 90 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 D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 90 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 D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

Massive Audio EX44N with NVX 8 Gauge Amp Kit

800W RMS EDGE Series Class AB 4-Channel Amplifier

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Massive Audio EX44N with NVX 8 Gauge Amp Kit

800W RMS EDGE Series Class AB 4-Channel Amplifier

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

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

Cerwin Vega S9500.2D + Free Belva Amp Kit

Stroker Series 500W RMS 2-Channel Amplifier

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Cerwin Vega S9500.2D + Free Belva Amp Kit

Stroker Series 500W RMS 2-Channel Amplifier

• 4/2/1 ohm: 250 watts x 2 chan.
• Bridged, 4/2 ohm: 700 x 1 chan.
• Class-D 2-channel 4-Ohm Amplifier
• Frequency Response: 10Hz ~ 35KHz
• Crossover 35Hz – 350Hz

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• 4/2/1 ohm: 250 watts x 2 chan.
• Bridged, 4/2 ohm: 700 x 1 chan.
• Class-D 2-channel 4-Ohm Amplifier
• Frequency Response: 10Hz ~ 35KHz
• Crossover 35Hz – 350Hz

Cerwin-Vega XED3002D with Belva 8 Gauge Amp Kit

250W RMS XED Series Class-D 2-Channel Car Amplifier

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Cerwin-Vega XED3002D with Belva 8 Gauge Amp Kit

250W RMS XED Series Class-D 2-Channel Car Amplifier

• 80 watts x 2 channel @ 4 ohm
• 120 watts x 2 channel @ 2 ohm
• Bridged: 220 watts x 1 channel @ 4 ohm
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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• 80 watts x 2 channel @ 4 ohm
• 120 watts x 2 channel @ 2 ohm
• Bridged: 220 watts x 1 channel @ 4 ohm
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Hertz Venezia V4 with NVX 4 Gauge Amp Kit

1160W RMS Venezia Series Class-D 4-Channel Marine Amplifier

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Hertz Venezia V4 with NVX 4 Gauge Amp Kit

1160W RMS Venezia Series Class-D 4-Channel Marine Amplifier

• 160 watts x 4 channel @ 4 ohm
• 290 watts x 4 channel @ 2 ohm
• Total RMS Power: 1160 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 160 watts x 4 channel @ 4 ohm
• 290 watts x 4 channel @ 2 ohm
• Total RMS Power: 1160 watts
• Class D 2 ohm Stable 4-Channel Amplifier
• Includes Amplifier Wiring Kit

Alpine R-A90S - Open Box, Great

R Series 6/5/4/3 Channel Power Amplifier

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Alpine R-A90S - Open Box, Great

R Series 6/5/4/3 Channel Power Amplifier

• 75 watts x 4 channel + 150 watts x 2 channel @ 4 ohm
• 100 watts x 4 channel + 250 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel-Channel Amplifier

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Wet Sounds SYN-DX 4 with NVX 4 Gauge Amp Kit

800W RMS DX-Series Bridgeable Full-Range 4-Channel Marine Amplifier

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Wet Sounds SYN-DX 4 with NVX 4 Gauge Amp Kit

800W RMS DX-Series Bridgeable Full-Range 4-Channel Marine Amplifier

• 125 Watts RMS x 4 @ 4 ohm
• 200 Watts RMS x 4 @ 2 ohm
• 400 Watts RMS x 2 @ 4 ohm
• Total RMS Power: 800 Watts
• Frequency Response: 20 - 20000 Hz
• Variable high-pass filter: 50 - 250 Hz, 12 dB/octave
• Variable low-pass filter: 50 - 250 Hz, 12 dB/octave
• Fuse Rating: 30 A x 2
• Includes Amplifier Wiring Kit

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• 125 Watts RMS x 4 @ 4 ohm
• 200 Watts RMS x 4 @ 2 ohm
• 400 Watts RMS x 2 @ 4 ohm
• Total RMS Power: 800 Watts
• Frequency Response: 20 - 20000 Hz
• Variable high-pass filter: 50 - 250 Hz, 12 dB/octave
• Variable low-pass filter: 50 - 250 Hz, 12 dB/octave
• Fuse Rating: 30 A x 2
• Includes Amplifier Wiring Kit

Diamond Audio DES400.4D with NVX 8 Gauge Amp Kit

680W RMS DES Series 4-Channel Full Range Class D Amplifier

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Diamond Audio DES400.4D with NVX 8 Gauge Amp Kit

680W RMS DES Series 4-Channel Full Range Class D Amplifier

• 100 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 680 watts
• Latest High-Efficiency Full-Range Digital Topology
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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• 100 watts x 4 channel @ 4 ohm
• 170 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 680 watts
• Latest High-Efficiency Full-Range Digital Topology
• Class D 2 ohm Stable 4-Channel-Channel Amplifier
• Includes Amplifier Wiring Kit

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Rockford Fosgate PBR400X4D (Open Box, Great)

400W RMS Class D Punch Series 4 Channel Car Amplifier

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Rockford Fosgate PBR400X4D (Open Box, Great)

400W RMS Class D 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 D 2 ohm Stable 4-Channel Amplifier

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-23% $237.99

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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

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

DC Audio 90.4 with NVX 4 Gauge Amp Kit

520W Competition Series 4-Channel Class AB Amplifier

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DC Audio 90.4 with NVX 4 Gauge Amp Kit

520W Competition Series 4-Channel Class AB Amplifier

• RMS Power: 90W x 4 @ 4 ohm, 130W x 4 @ 2 ohm
• Bridged: 250W x 2 @ 4 ohm
• Variable High and Low Pass Filters
• Dimensions: 9.38" W x 14" L x 2.35" H
• Includes Amplifier Wiring Kit

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• RMS Power: 90W x 4 @ 4 ohm, 130W x 4 @ 2 ohm
• Bridged: 250W x 2 @ 4 ohm
• Variable High and Low Pass Filters
• Dimensions: 9.38" W x 14" L x 2.35" H
• Includes Amplifier Wiring Kit

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    FAQ for Multi-channel Amplifiers for Adding Speakers in 1987 900

    Q: Can I upgrade or change the Multi-channel Amplifiers for Adding Speakers in 1987 Saab 900?

    A: Yes this page includes all the best Multi-channel Amplifiers for Adding Speakers that work in your 900.

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