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Kenwood KAC-8405

360W 4-Channel Performance Series Amplifier

Discontinued
|

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

kac8406 thumbnail

Kenwood KAC-8406

OUR PRICE: $139.99

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Bundled Savings with this Product

=

25% off a 8 Gauge Amp Kit with Purchase

Save 25% off the Belva BAK82 install kit, the perfect kit for this amp.

4.50

22573

438

Kenwood KAC-8405

$119.99

+

25% OFF

Belva BAK82

$17.99

Special Price $13.49 ($17.99 if purchased separately)

Belva BAK82

• Complete 8 Gauge 2-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 500 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• Mini-ANL Fuse Holder With A 60 Amp Mini-ANL fuse

(Offer 1 of 1)

Combined Total Price

$133.48

You Save $4.50

Kenwood KAC-8405

KAC Car Amplifiers

Reliable Output

An important element to class AB amplifiers is clean output with high efficiency. These two factors were highly considered in the engineering of the Kenwood KAC-8405. Highly rated signal to noise ratio and total harmonic distortion showcase this amplifiers signal processing and clean output. In some cases these factors wouldn’t mean much because the amplifier may generate plenty of heat over time and cause it to constantly shut off. In order to maximize total efficiency, the Kenwood KAC-8405 has had cleverly incorporated self activating fans to help quickly dissipate heat. This prevents damage to your amplifiers internals and also protects the amplifier from constantly going into self-protection mode.

With rated output levels of 60 watts to 4 Channels at 4 Ohms, and 90 watts to 4 Channels at 2 Ohms, this amplifier can truly output clean class AB signal without distorting and overheating. To achieve higher power output, the Kenwood KAC-8405 can also bridge two channels together to even power more demanding applications. This effectively allows the amplifier for 4, 3, and even 2 channel operations! Built into a compact, brushed metal chassis this amplifier even gives off an appearance of staying cool even in the harshest environments.


General Features:

  • 4-Channel Performance Series Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 60 watts x 4 chan.
    • 2 ohms: 90 watts x 4 chan.
    • Bridged, 4 ohms: 180 watts x 2 chan.
  • Max power output: 720 Watts
  • MOSFET power supply
  • LED power indicators
  • 4/3/2 channel operation
  • Speaker-level inputs
  • Input sensitivity control
  • Bass boost switch
  • Short circuit, DC offset, overload, and thermal protection circuitry
  • Signal sensing turn-on
  • Cast aluminum heat sink design
  • Built-in cooling fan
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Single side exposure of terminals for multi-installation
  • Variable high-pass filter (50-200 Hz, 12 dB/octave)
  • Variable low-pass filter (50-200 Hz, 12 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 50-200 Hz
  • Dimensions: 11"L x 2-5/16"H x 9-3/8"D
  • 8-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • 1-year Sonic Electronix warranty

Product History:

Kenwood KAC-8406 thumbnail
(newest, current model)
Kenwood KAC-8405 thumbnail
(previous model, replaced by Kenwood KAC-8406)
Kenwood KAC-8404 thumbnail
(previous model, replaced by Kenwood KAC-8405)
Kenwood KAC-8403 thumbnail
(previous model, replaced by Kenwood KAC-8404)
Kenwood KAC-8402 thumbnail
(previous model, replaced by Kenwood KAC-8403)
Kenwood KAC-8401 thumbnail
(previous model, replaced by Kenwood KAC-8402)

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

60 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

90 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

180 watts x 2 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Performance (Kenwood)
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.

AB
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.
4
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.

720 watts
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.

360 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
8 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.8%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes
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.
1 pair
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.

Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 200 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 200 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
100 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 18 dB
Bass/Gain Remote
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.
No
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
Yes
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
40A x 1 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
71%
4 Star
18%
3 Star
6%
2 Star
0%
1 Star
4%

Average Attribution Rating

Durability
4.6
Value
4.7
Features
4.4
Design
4.5
Usability
4.6

Marvin

La Palma, CA

Overall
Durability
Value
Features
Design
Usability

Very nice amp

June 1, 2011

Got this amp to power Polk DB651, and DB6501. Sounds are crisp, and clear. Absolutely no signs of over heating. Amp is still cool to the touch after an hour of solid play. Set up took about 20 min and I haven't touched it since. Great little amp!

4 of 4 found this helpful

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Ross

Beaver County, Pennsylvania

Overall
Durability
Value
Features
Design
Usability

BEST AMP IN THE CLASS!

March 23, 2011

This amp is one of the SMALLEST 4 channel amps i have ever seen...Not only the size but this is one of the most powerful in its size...this is my third amplifier on the setup i have in my car, Infinity Kappa front and rear and this little amp really kicks all the other out the window! I will buy another one for my other car, its that good....Most amazing 4 channel amplifier ive ever heard this size. To all other reviews that say it gets "SO HOT" or whatever, it says in the manual if it is not installed correctly it will over heat and it also states during normal operations may cause burns. so it is normal AND it DOES have twin fans. The only amp in its class that ive owned that does not shut down at too loud of a volume for long periods of use. These other reviews are very vague and do not give this amplifier enough credit and are only acceptable if they are comparing this to a 500$ Kappa amp which i doubt they have as they just bought one at 1/5th the price so if you ask me i would say they are amateurs that dont know how to tune an amp in correctly because trust me this one is worth every cent. I would buy 5 just for future cars if i could. 100% quality...kenwood out did their selves and sold me to all of their other products with just this amplifier! A sony xplod amplifier deserves the ratings from the others on here as this one deserves a perfect 5. (upgraded from an xplod 600w to this and yeah its that big a difference... this will NOT shut down crank it all the way up!

4 of 4 found this helpful

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Tran

centreville, VA

Overall
Durability
Value
Features
Design
Usability

Great budget amp

January 31, 2012

I have this powering infinity 6012 comps and a single image dynamics 10" sub. I had to fiddle with the x-over points and eventually had to turn on bass boost and turn my gain down but I have it set correctly now where I can crank my system and it is crystal clear. I had a 3 hour road trip and had my music cranking and windows down the whole time and no problems. I elected to wire it up using the speaker cables instead of RCA and have no problems with popping. I can hear the fan slightly in the trunk after turning my car off but it's really not an issue. This is a great little amp for a budget system and I am very happy with it. I wish it had more power but for what I paid I am completely satisfied.

2 of 2 found this helpful

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Terry

Visalia, CA

Overall
Durability
Value
Features
Design
Usability

Produce great sounds

June 20, 2011

Item was easy to install and adjust with great sound.

2 of 2 found this helpful

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DBK

Bakersfield,Ca.

Overall
Durability
Value
Features
Design
Usability

Compack

May 17, 2011

It's nice and small you can put it any where you want to if you don't want anyone to see it. And it's easy set it up not to complated is to wire it up and ajusted and your done and price you can't get no better that. So to me is very good and simple and thank you good day.

2 of 2 found this helpful

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Chris

East Bethel, MN

Overall
Durability
Value
Features
Design
Usability

worth the money

September 20, 2013

I am very satisfied with this amp it didn't cost much for what you get out of it. The only thing bad about it is that it only has a bass boost on 2 of the 4 channels otherwise its great, best amp I have ever bought for that price range

1 of 1 found this helpful

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Lee

Antrim, NH

Overall
Durability
Value
Features
Design
Usability

GREAT

March 30, 2014

Love kenwood and there quality this amp in my tundra is incredible..5 stars

0 of 0 found this helpful

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BIG p

ARLINGTON

Overall
Durability
Value
Features
Design
Usability

YES

January 2, 2014

YES it is a great amp. Very, very, easy set up.

0 of 0 found this helpful

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Vassago

Texas

Overall
Durability
Value
Features
Design
Usability

Kenwood power in 2010 camaro powering Infinity Reference separates

November 8, 2013

This unit provides clean power and definitive notes in your music. It cranks out crisp sound. The downside is the constant "whir" of the built in fans. Even mounted in the trunk, under the deck lid the "whir" can be detected between tracks or low levels. Not a deal breaker just a notable caution for those that might consider mounting this unit in the passenger compartment- I wouldn't do that!! Other than this little annoyance this is a solidly built unit, limited adjust-ability. The fans will likely add to the lifespan and keep this unit operable for years. In use time, 1 month.

0 of 0 found this helpful

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Lance

Deepwater, MO

Overall
Durability
Value
Features
Design
Usability

Kenwood KAC-8405 Review

October 14, 2013

So far excellent product. Does not miss a beat. If something goes wrong I will let ya know.

0 of 0 found this helpful

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Ozzie

Durham, NC

Overall
Durability
Value
Features
Design
Usability

powerful compact 4 channel amp at a great price.

September 24, 2013

I use this amp to push 2 6x9s and 1 12inch sub bridged with the amp half way. The sound is crisp and clear. I have pumped this amp hard non stop on five hour road trips without any problems.

0 of 0 found this helpful

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Toplait

Clinton, Mo

Overall
Durability
Value
Features
Design
Usability

Kenwod Review

September 17, 2013

Let me start off by saying I replaced the 1600 BAMF 4 channel with this Kenwood...I'm glad I did. This amp does not get hot and puts out as much power or maybe even more then the BAMF. This is a great amp for cramped spaces. I placed mine under the seat. It is kind of noisy if you have the stereo turned off or down to maybe 1 on the volume you can hear the 2 fans keeping the amp cool. The sound is clear and crisp even at full volume on my head set....Although I have the amp set at a little less then half gain and my head set adjusted way low on some of the settings because my pioneer door speakers can not handle the power of the amp. =) This amp is difficult to switch some of the settings. You will need to use a small screw driver the size of a tooth pick to switch some settings...Once you get it set then you pretty much don't have to worry about the settings again.. There is a Allen wrench you will have to use to take the dust cover off the amp that protects all the input wires to install to the amp. For the price this is a great amplifier that puts out.

0 of 0 found this helpful

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Scott

Mesa, AZ

Overall
Durability
Value
Features
Design
Usability

Kenwood value

September 17, 2013

I bought this amp to add a little bass to my basic setup. for this price level, it's hard to find a more powerful amp with a cooling fan especially important in Phoenix! The sound is clean and there are ample controls on the unit for High pass/Low pass, volume level, crossover frequency etc. I was disappointed that it did not come with a bass knob but the head unit I purchased has easy access to sub level so it wasn't an issue. I guess most people don't run these in three channel mode as I do. Provides plenty of power for my Saturn and old ears. I recommend.

0 of 0 found this helpful

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Kisha

Maywood, IL

Overall
Durability
Value
Features
Design
Usability

Love it

September 17, 2013

I love it. ITs a little bigger than what I thought it wold be, but over all it preforms the way I expected it to.

0 of 0 found this helpful

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Matthew

Goldsboro, NC

Overall
Durability
Value
Features
Design
Usability

Great 4 speaker amp

September 17, 2013

Installed this in my Dodge Charger with two 6x9 rear speakers and two 6.5in components in the front. All Kenwood system and has crystal clear sound even to the peak gain point.

0 of 0 found this helpful

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joe

Snoqualmie, WA

Overall
Durability
Value
Features
Design
Usability

True Power

August 16, 2013

I matched this up with a Kenwood head unit into 6 mids totally too loud at max volume. Tuning was a breeze. If your for an affordable crystal clear amp I would highly recommend.

0 of 0 found this helpful

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Donovan

COLUMBIA, SC

Overall
Durability
Value
Features
Design
Usability

Awesome

August 2, 2013

I have never been disappointed with a Kenwood product. Greatly improved sound

0 of 0 found this helpful

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Daniel

Squaw Valley, CA

Overall
Durability
Value
Features
Design
Usability

Worth every pinny.

June 21, 2013

I am not a big stereo guy but I am glad I got this amp. It sounds great with the speakers I got. I installed it in my wife's F250 crew cab. She love's the way it sound's. I did run new speaker wire from the amp to the speaker's.

0 of 0 found this helpful

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Kristian

Wichita, KS

Overall
Durability
Value
Features
Design
Usability

Very Goodamp for the price

May 17, 2013

I love this amp,matched with the channel kenwood andworked great together.for the price its hard to beat

0 of 0 found this helpful

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Tye Dye

Hot Springs, Arkansas

Overall
Durability
Value
Features
Design
Usability

Great addition.

March 11, 2013

I recently added this amp to my car and what a difference it makes. I have had my deck amped before but I do not remember it having the clarity this amp provides. Like all upgrades, I started with Kenwood Speakers. I can max out the volume and I still have clean and clear tunes. I had the volume all the way up and for the fun of it I honked my horn, and could barely hear it. I luv this amp. I'm saving up for a sub next. Looking forward to completing my upgrade.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

StreetWires ZN1K-08 8-Gauge Wiring Kit

Great wire for your awesome new amp! Don't forget the RCA's!

Your Price $16.95

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

Your Price $7.99

Small Universal Remote Level Bass Control

The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.

Your Price $11.99

StreetWires FB8

8 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

Kicker K-Series RCA Interconnect Cable

19 ft. of 4-Channel RCA cable with dual twisted-pair conductors, hyper-flex technology, and gold plated contacts for maximum signal transfer!

Your Price $29.95

StreetWires ZN7 RCA Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with hyper twist construction, oxygen free copper, and precision machined tips.

Your Price $59.99

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

The Install Bay IB-CAP1F

True 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $37.99

e2 ECAP1 by Scosche - Mid-Level 1 Farad

Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max

Your Price $49.99

SMD DD-1 Distortion Detector

Set the gain of an audio amplifier quickly and accurately

Your Price $149.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
what is the best way to set the amp up for two speakers?
kenny T on Jul 31, 2014
Best Answer: Hello,

It really depends what your application is. If the speakers you are referring to are simply asking for ~60w RMS @ 4ohms each, then you can give each one its Own channel. If, however, they're asking for ~180w RMS @ 4ohms each, then you will bridge the channels.

If you are referring to the SETTINGS, then that comes down to preference and what the setup is. You will want to do your own homework, however, as its going to be very difficult to go in-depth within a small Product Thread like this one.
Reply · Report · Customer SStaff on Aug 13, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

KAC-8405

UPC

019048186485

Weight

9.00lbs

Internal SKU

kac8405

Internal Product ID

22573

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Kenwood KAC-8405