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Your Sales Price $69.99 - $59.99
A quick rundown of this product’s key features:
This 668 4 Channel Amplifier is a perfect entry level amplifier for your car audio needs. It has high quality circuit and hardware designs along with exclusive technologies to improve sound quality and minimize distortion.
Each channel of your amplifier can easily drive 4Ω speaker loads when used in the stereo mode. when a channel – pair is bridged. the recommended minimum load impedance is 3Ω for subwoofer use, and 4Ω for full range operation.
Puts more aluminum on the heatsink than a normal amplifier. Assures the amplifiers make huge power while running very cool with nearly undetectable musical distortions.
Proper system planning is the best way to maximize your amplifier performance.
Our Top Reviews
Reviewer: juddyherdman
Rating: 5.0 out of 5 stars
Title: Great all around AMP. 1600W x2 OR 800W x4. Plenty of adjustment. Plenty of POWER!!. Run anything.
Review: I got this amp thinking How can they sell a 3200w amp for so cheap.. thought it was a typo, 320w.. figure id try it. 4x channels, inputs, 2x outputs, Low/full/hi pass, and other settings and adjustments.. just wanted a bit of “thump” in my daily driver. 03 gmc 1500 RCLB.. I was looking at 4-800 watt amps from other makers, and seen this, for the same price actually even cheaper.. I figured even with only half the amp being used, bridged on rear channel its 1600w.. Thatd be plenty for 2×10″S, 1x good 12″… Plus i could run 2x speakers off the other channel if i wanted..Glad i got it.. PLENTY of AMP…It says its a 3200w amp. prob is true. Or darn close.. Ive had 800/1000w good name brand amps in past, and id say this the way i have it (2x out of 4 ch bridged too 1x 12″) is atleast equal too or a bit more power then them. (only using half the amp, w/ half the gain adjustment/settings @ 50/60% could say)I like 4 channel amps w/ good headunits (ppl say there no good w/ subwoofers) I say get the rite settings set were you can w/ good head unit, as well as speaker quallity, wiring setup.. and they work fine ime.. wired too subs, & or speakers. I like the option of being able too run a subwoofer, and or 6″,6×9 speakrs, tweeters etc. And this amp is powerful enuff and has options too do so.. (make sure you get the biggest wire kit, capacitor be a plus too)Its a bit large in size, Compared too its weight. And the RCA Inputs are in opposite end of all other wires, and a bit in way of Gain and adjustments knobs.. Not a dealbreaker since its only a DD.. And for what it does. Im not complaining. I hooked this too 1x 12″ pyle BLUE label, also not bad. in a 12″ truck box, and it HITS!/ It actually hits too hard with just thed 1x 12″ bridged on the one channel. Oh and this amp does have the option too brige across all 4x channels, so ie: you have a 15″ 4k watt speaker/sub, It say you can hook this across the 4x channels and it will sense it automaticaly, and do its thing. I didnt try it yet. BUT even w/ it bridged acoss just the one pair, I had too turn down the gain too prob 50%. And even then, w/ a cheap touchscreen Ekat 2din, It still will trip’ the amp into protect mode if you turn on DBBL BASS or turn bass up in head unit.. Good and bad lol. Also i only ran 6g wire thought i was only gonna get a 400w boss amp off here. haha.. Didnt think id get a 3k wat amp for the same price!! This amp needs atleast a 0/1G WIRE, and a capacitor. to get 100% out of it. But i also Figured the amp,sub or something prob wouldnt last be blown in a week.. and Id be putting in a 4-600 wat Planet audio amp or something for $200 anyway..-But so far so good.. been abount 2weeks,daily use.. w/ extreme temps, down too 0*F at nite here.. and next morning, afternoon driving, Heat cranked, single cab manual trans truck, Bumpy roads, Sound/volume cranked.. Still going (after setting amp and head unit too rite).If you are really hardcore into you sound system, go with some name brand… If you just wanta get a system in a vehicle for some good bass/sound.. This amp is not bad, Especially when ALL in about $180 ish for a awesome sound & video system in my beater.. I got the headunit, 2din ekat B/T,USB AUV MPC touchscreen.. the 12″ PYLE blue label sub,12″ Truck box, 2x tweeters and 6.5″ blaupunkt speakers in doors.. All off here..IME The head unit always made the sound of a system, Well this AMP dont care what head unit you got, or the sub, itll just hit’ and crank out. Id be carefull, no joke, Make sure too turn the adjustments and settings in you headunit down too like 10%.. And go up from there. In my case, worst thing thatll happen is the amp would go into protect mode, red light.. when it started hitting too hard in a song.. Or blow the new speakers rite out.. no joke. Ill come back and give and update if it blows up. Want too try getting a better brand sub, and adding something else too the amp. Will try tinkering with it more —This amp would be fantastic too run 4 speakers on.. But @ 800w each they’d be some serious speakers. Youd need the best wiring kit, an capacitor for this thing.. But itll do pig, itll do…
Reviewer: Craig wise
Rating: 1.0 out of 5 stars
Title: Amp don’t work
Review: So I got this amp, everything was working except for the right side speakers connections but the other side was fine. Bridged my speakers to the other port , but it would go into protections mode. So I checked everything again nothing should have been causing this, even tried other areas to ground and ran my remote wire for a test to see if that was the trouble but nothing. Now the amp will not power on at all. Even took it out of the truck and tried it in my buddies but the amp is trash. I should have trusted my gut not knowing this brand but lesson learned but I wouldn’t tell anyone to buy this.
Reviewer: Sean Tobyne
Rating: 4.0 out of 5 stars
Title: Idk my ramble
Review: Second time I’ve bought this amp. 2 years ago I paired it with a 12 inch pioneer 1200 watt worked great sounded great. Sold set up to a buddy a built a new set up different amp but with 2 pioneers didn’t sound as good so finally rebuilding that original set up I had. Idk back plate needs another mounting point and a few metal defects as well. And when mounting I’d put bottle caps between the amp and mounting surface so the vents on back plate can get air
Reviewer: Tomeica
Rating: 5.0 out of 5 stars
Title: 👍
Review: 👍
Reviewer: Joseph Yemma
Rating: 1.0 out of 5 stars
Title: It’s junk. Works for a few minutes and quits. What’s with the amp staying powered on
Review: What the hell is with the a.m. stay empowered on the entire time even with the remote wire that turns on my other amp this amp is phony and I want my money back or I will find where you guys are and throw the a.m. through one of your guises windshield to your car and see how are you guys like it I want my money back or I’m a file a complaint with the Better Business Bureau
Reviewer: Abigail c.
Rating: 4.0 out of 5 stars
Title: Fue un regalo
Review: Su dueño la utilizó por un tiempo
Reviewer: Nixy
Rating: 1.0 out of 5 stars
Title: Piece of junk
Review: Wouldn’t even stay on for more then a min weak as watered down 32 beer
Reviewer: Jeremy
Rating: 4.0 out of 5 stars
Title: As discribed good amp I love it
Review: Love it. As described arrived on time.
Price effective as of Mar 11, 2025 22:04:22 UTC
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