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Kenwood KAC-5207

2-channel car amplifier — 70 watts RMS x 2

Item # 113KAC5207

Our customers often tell us that Kenwood makes rugged amplifiers that bring superior sound quality along with...

Read more from Crutchfield writer, Buck P.

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About the Kenwood KAC-5207

Empower your speakers

Our customers often tell us that Kenwood makes rugged amplifiers that bring superior sound quality along with reliable performance. Kenwood's KAC-5207 2-channel amplifier can deliver a true 70 watts RMS per channel to your full-range speakers — you'll hear all the tonal color, impact, and musical detail you've been missing, from the punch of the rhythm section to the shiver induced by your favorite singer's voice.

Empower your speakers

Our customers often tell us that Kenwood makes rugged amplifiers that bring superior sound quality along with reliable performance. Kenwood's KAC-5207 2-channel amplifier can deliver a true 70 watts RMS per channel to your full-range speakers — you'll hear all the tonal color, impact, and musical detail you've been missing, from the punch of the rhythm section to the shiver induced by your favorite singer's voice.

Works for bass too

You can also use this versatile amp to power a subwoofer with up to 170 watts RMS in mono mode, with a built-in low-pass filter that allows you to send only bass below 80 Hz to your sub. You'll also find speaker-level inputs with signal sensing turn-on, so you can put this amp to work in just about any kind of system. The cast-aluminum heat sink gets rid of heat efficiently when you're cranking the volume.

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Product highlights:

  • 2-channel car amplifier
  • 70 watts RMS x 2 at 4 ohms (85 watts x 2 at 2 ohms)
  • 170 watts RMS x 1 bridged at 4 ohms (4-ohm stable in bridged mode)
  • CTA-2006 compliant
  • Class AB design
  • switchable low-pass filter (80 Hz at 18 dB per octave)
  • preamp and speaker-level inputs
  • signal sensing turn-on with high-level inputs eliminates need for remote lead
  • 10-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • fuse rating: 25A x 1
  • 9-1/16"W x 2-3/16"H x 6-9/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # KAC-5207
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What's in the box:

  • 2-Channel amplifier
  • 25A ATO fuse (installed)
  • 9" Speaker-level input harness
  • Four 5/8" Self-tapping screws
  • Instruction manual (English/ French/ Spanish)
  • Warranty Card

Customer reviews

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Kenwood KAC-5207 Reviews

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Features
Controls
Connections

Features

CTA-2006 Compliant: CTA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. CTA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples). Using CTA-2006 criteria, the Kenwood KAC-5207 is rated at 70 watts RMS x 2 channels with an 80 dBA signal to noise ratio. The signal to noise ratio at the rated power output (not CTA-2006 conditions) is 100 dB.

2-Ohm Stable: The amplifier can support a 2-ohm load in stereo; the 2-ohm power output is 85 watts RMS x 2 channels.

Bridgeable: This two-channel amplifier can be bridged to a 4-ohm mono load; the bridged output is 170 watts x 1 channel RMS.

Cast Aluminum Heat Sink: The KAC-5207 utilizes a cast aluminum heat sink design to ensure the amplifier stays cool.

Protection circuitry: The amplifier features protection circuits that will turn the amp off in case of the following events:

  • speaker wire short-circuits
  • speaker output contacts ground
  • unit malfunctions and DC is sent to speaker output
  • the amp overheats

Power Indicator: When the amplifier is turned on the Power indicator (on top of the amp) lights up. This indicator turns off with the amplifier, and will turn off if the amplifier goes into protect mode.

Auto Turn-on: When using a speaker level input, the amp will turn on automatically when it senses the input signal.

Controls

Gain: To accommodate the varying range of signal levels from today's factory and aftermarket radios, the KAC-5207 features an adjustable gain control; 0.2-5.0 volts line level (RCA) and 4.0-12.0 volts speaker level.

Low Pass Crossover: The amplifier has a fixed 80Hz low-pass filter with a slope of 18dB per octave. The filter can be turned On or Off as needed.

Connections

Power Connections: The power, ground, and remote turn-on connections are 0.425" wide screw terminals. A Phillips-head or flat blade screw driver (not supplied) is required to tighten/loosen the terminals. Spade connectors are recommended. Minimum 10 gauge wire is required for power and ground. A 25-amp fuse should be placed on the power wire within 18" of the battery terminal.

Speaker Outputs: The two pair of speaker outputs are 0.315" wide screw terminals. A Phillips-head or flat blade screw driver (not supplied) is required to tighten/loosen the terminals. Spade connectors are also recommended for the speaker wires.

Note: The speaker output terminals can be used in stereo or bridged mode.

Line Level Input: The line input is a pair of stereo RCA jacks.

Speaker Level Input: A 9" wiring harness is included for the speaker level input.

Fuse: The amplifier uses a 25-amp ATO blade-type fuse.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I have a Kenwood and I like it very much. [ Wilson  May 03, 2018 ]
A
Seem okay and in my price range. [ WINIFRED M  Nov 25, 2017 ]
A
Needed this for center channel speakers [ Robert  Jun 09, 2017 ]

2 questions already asked

Q
Does this amp have a remote turn on connection I can wire to an external switch?
[ Vance  Apr 24, 2018 ]
1 answer
A
If your radio doesn't have 12v power out when you turn it on, you can use a external switch to supply the amp with power.
[ robert  May 03, 2018 ]
Q
can I add a sub woofer to this amp?
[ Jeffrey  Apr 17, 2017 ]
1 answer
A
This amp can be bridged to one channel and it outputs 170 watts RMS and is 4 ohm stable. There are subwoofers that are 4 ohms and can work with this power. Feel free to call an advisor on 1-800-324-9695 for a personal recommendation on a matching subwoofer. My Bio: https://www.crutchfield.com/Support/Bio.aspx?bio=101
[ Paul  Apr 21, 2017 ]  Staff

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