Customer Reviews

Kenwood Excelon KAC-X10D Mono subwoofer amplifier 600 watts RMS x 1 at 2 ohms

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4 star:		(1)
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2 star:		(1)
1 star:		(1)

 

 

The Kenwood brand slowly sharpened its image to match its reliable amplifiers. I decided to try them as this marked a shift in excelon Power and style. I hooked this up and tested it the same day. I returned home after an hour testing it at high volume. I got out of the car with ringing ears and a throbbing headache. I felt the amp and it wars barely warm. Thinking this was just the winter weather. I waited till summer. It hit just as hard and was just as warm six months into its use. I had been driving a 500W RMS Alpine Type R with the gain at 1Volt Preamp. Two summers later with the same settings, I got consistent power no shut downs whatsoever, even in summer when I used it the most. The only time it got hot was when the weather hit 100F degrees, and still no shut down and still loud as ever. All my friends loved riding in my car and girls did not. I would buy this amp again only complaint is the hiccup it gets when the bass boost is turned up all the way, I heard this was solved on its big brother the X1-R. I would highly recommend this amp if you are a medium power user- you won't regret it.

i love this amp, never gets hot, real small, high output... i owned this awhile ago but traded my whole setup, and im back again. my previous kac-x10d had screws which would not fit the allen wrench they supplied you with but no big dael i had plenty of tools to fix that issue.

comparing to my old amp, everything hits harder and strong with this amp. previously the bass would kinda rumble with my old amp but with this in place with the same subs its amazing. it never even warms up even with heavy use like my old one, when you touch the amp its cool to the touch. the only thing i dont like about it which is only 1 problem is that the allen wrench they supply you with does not fit the allen screws which hold the cover plate on its like a size under for what you need. <- which is no big deal because it still works, although my bass makes the screws rattle up and out of the amp because i cant tighten them down as hard as i'd like to.

by the way this amp had enough power to unbolt my chimsel lamp and bounce it all around on the back window. <- my solution... threadlock

The design is fairly clean overall.
Connections are made by removing the fascia shield via the 2 allen head screws allowing access to the terminal strips for connections.
The first thing I noticed is the weight. This amp is light. Meaning, there can't be that much inside for a clean performer.
Sure enough, this is a plane jane stripped down amp, with limited MOSFETS.

Here's the specs:
Class D Mono Power Amplifier
K-STAT technology
Dual sigma drive
Dual power supply with two transformers
Maximum Output Power: 1200 Watts
RMS Power 4-Ohm: 300 Watts x 1 (20-200Hz, 0.5%THD)
RMS Power 2-Ohm: 600 Watts x 1 (100Hz, 0.5%THD)
RMS Power 1-Ohm: Over 600 Watts x 1
Signal To Noise Ratio: 80dBA (Ref:1 Watt into 4Ohm)
Infrasonic Filter: 15Hz, 25Hz, -24dB/oct
Bass Bosost ready (Wire remote): 40Hz-100Hz, 0dB-+18dB
Low Pass Filter: 40-200Hz (Variable), -24dB/oct

OK... Now for the truth.
CEA 2006 rating is 1% THD. Meaning it's a Loose noise monster.
Secondly...Where's the second power transformer... There sure isn't one on the board.
Lastly, do the math. 40A fuse X 13.8V = ~552W peak load before the fuse pops.
Generally, this formula works for class AB the best. Digital amps are more efficient. Based on the number of Mosfets...there's no way this amp is getting near 800 or 1200 watts.

This looks like a revised layout from the older KAC series amplifiers, with near identical componentry. There is so much sparce space on this amplifier board, there's no reason to have the heat sink this large.
The other thing I observed... is the solder joints on the MOSFETS on the amplifier side of the board looked relatively poor and high in flux.
Under high load, I would expect a failure condition.

If your looking for just cheap sound reinforcement and not worried about quality, then pick this one up.
If your looking for Better Regulated, true digital class D, and better overall circuitry...look on to either Xtant (before their MTX aquisition), JL, or Directed.

i replaced my cheezy bazooka 500 rms with this amp ,thought i was upgradeing when i accually downgraded when i turn up the volume i loose the bass amp cutts in and out until i lower the volume therfore cant get full power ,very agrivateing ,also box didnt include the remote witch is the only way to adjust the bass boost and frequncy box had tape covering the label that says remote ,does that make sence ,very unhappy and discuraged ,DONT PURCASE....Kenwood Excelon KAC-X10D Mono subwoofer amplifier 600 watts RMS x 1 at 2 ohms