Rockville D14 7000w Peak/2000w RMS Class-D 2 Channel Amplifier, 1.5U Rack-Mount, LCD Display, Cooling Fans, Built-in Crossover, for DJs and Live Sound

It should be noted that I ordered the D-14 which is LESS than 10 lbs and delivers a whopping 1400 watts (RMS) at 8ohms. (The non D rated amps are much heavier.) This all started when our small band began booking gigs OUTside where much more power is needed. We first purchased a pair of Rockville RSG 15" PA speakers (excellent also) and I didn't feel my Crown power amp was going to give us enough punch. Adding the D-14 with the RSG 15s has given us a very impressive sound system in a lightweight package. You cannot go wrong with this system and can be had at a much lower investment than a Crown, JBL, Yamaha, or QSC system. (One note though: In a studio application, you may find the cooling fan a bit loud for the environment. In a live venue, it's just fine.) HIGHLY RECOMMENDED!

Used this to replaced the blown internal amps for 2 klipsch 15" subwoofers. Works perfectly and sounds good.

D14 sounded ok, but developed an intermittent issue with 1 channel. The channel quit and the other one now flickers the clip and signal light and makes a noise through the speaker. Called Rockville and wasted 30 minutes of my life to find out after 4 months they aren't going to do anything about it. I guess you get what you pay for with this garbage.

Just like the other reviews, it does the job and so far so good...also it is like the bench test. It starts to get some distortion above 600 watts without clip light. It's very quiet for that much output. I have some DIY speakers with 2 12's Pro Audio woofers a DS 18 car midrange, polk and scanspeak tweeter, but I would not put that amp on my VMPS ribbon speakers. It didn't even care when I passive sub on it !

We measured this on an Audio Precision 555 into 8 ohms. Clipping with one channel driven occurred at 612W, a bit short of spec but hard to complain for the price. Power in BTL mode at 8 ohms was an astounding 1800W at 1KHz, near the rated 2000W. At 40Hz output was closer to 1500W. 20Hz went into limiting/protection at around 1KW, so we will use a high-pass filter at 30Hz. Unfortunately, performance into 4Ohms was nowhere near close to rated specs, the limiter kicked in with both channels driven at just 700W, barely any more output than 8Ohms, and the BTL mode at 4Ohms maxed out at 1KW, so it's clear why they don't publish a bridged 4Ohm spec. For our application, we use 8Ohm drivers so this is a good fit, though it is worth noting that doing full power testing at 20Hz caused the amp to go into protection below 1KW in bridged mode. In addition, as you can see in the measurements, using the LPF in bridged mode did nothing to increase power but it did increase distortion in the sub band, so ideally use an external crossover. The "Peak" output numbers are a fiction as the amp immediately went into limiting at the peak power, you can see that in a few of the measurements where the traces actually double-back after clipping. Another positive thing was being able to call for tech support and to actually speak with someone. All in all, this is a great unit for a sub or for an 8Ohm speaker, but it falls short on promise for 4ohms.

Excelente!

Powerful but noisy above 20-30db. About 1/4 of the volume. Weighing returning it.

Works as advertised! Much better than a similar brand, which I won't name. It's nothing flashy, but that works to It's advantage.

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The amplifier is very good quality and the customer service is great.