SPA1000 1000W Subwoofer Plate Amplifier

So I purchased this to replace my Klispch 115 SWR amplifier after it died. The difference is night and day as far as features, build quality, and power goes. I doubt the Klispch stuff makes more than 250w with lightening as a power supply. This SPA 1000 is definately worth the price at about .50 per watt. Not too mention the clipping protection, great EQ, and AB class with a massive Xformer. I actually threw the Klipsch woofers in the trash where they belong and installed Sundown subs. The house is now powered with 3 of these amps on Sundowns in Klipsch enclosures. What a difference!

Hasta el momento tiene buen rendimiento con un par de 12', las mueve casi a reventar, me llama la tencion que hace un "pop" al encender y cuando esta a niveles altos se calienta espero sea normal... lo compre en oferta 7500 creo que fue un excelente precio. Lamentablemente hoy 14 de septiembre comenzó a meter ruido y tengo que llevarlo a reparar.

Product looks legit but it has serious ground humming and it cannot handle 1000 watt speaker at 4 ohms like it say. It cannot handle gain at half way without shutting off. I constantly have to turn it off and back on again for subwoofer to work. Also the automatic trigger turn on sometimes work sometimes doesn't. I tried everything from buying new rca shielded wires to plugging everything into same power conditioner outlet to using isolators. Nothing works.. I tried contacting them but no reply. I explained my problem not wanting to return it but to help me fix the problem and no answer. Just put out a little bit more money and get a Monolith 12 with none of these problems.

Used one of these 1000w amps with two 12" Polk Dxi subwoofers for a dyi home theater subwoofer. Pros : I really like the subwoofer controls and eq although I ended up using the LFE input which bypasses all controls except the gain. Very well built with a beefy transformer. Auto power on sensing seems to work well so far. Cons : Nasty "thump" when powering on(not when auto sensing though). Would be better if a 12v trigger option was offered.

I am updating this as these amps are really frustrating, they often fail to "wake up" and they only offer "auto". There is no "on" and they don't have a 12V trigger, so it is really really really frustrating as they often just won't engage unless you crank the volume for a few seconds to "wake them" and then they work ok -- but then they also often fall into standby state if you have long "quiet periods" (or say you pause something for a bit). I will be replacing my entire subwoofer setup as these amps are just frustrating. -- original review -- I bought this to replace/upgrade a failed SPA500 that was ~10 years old in a direct to consumer integrated subwoofer. It was a drop in replacement, took me about 10 minutes and most of that was because I chose to use a hand screw driver rather than a drill for half of it. So far it works great, I don't know if I "needed" the upgrade who can say no when it was far cheaper than any new sub alternative. I could possibly fault Dayton for the fact that I have 2 SPA500 that failed, but maybe 10 years is all I can expect from a sub amp? Perhaps they are working too hard due to the wiring arrangement of my subs. They are powering 2 15" dual voice coil drivers in a sealed enclosure. It is hard to say, but I have two of the SPA500 had a failure that resulted in them just humming non-stop (and no, it wasn't due to ground loop) which isn't unheard of...but then what competitor exists remotely close to this price point? Hopefully the SPA1000 last longer than the 500 did, but it was still far cheaper than buying new subwoofers. I am sure the bass will be more intense with 2000W total driving my 4 15" subs when I install the 2nd amp in a week.