RZ4-2000D 2000W Class D 4 Channel Amplifier, Black, 13.60in. x 6.30in. x 3.50in.

Awesome Amp!! Major power!! Running this amp in my 2009 Harley Street Glide, with Infinity Kappa 62.11i speakers and Sony MEX-M70BT HU. Very clear and rich sound, I cant wait to put a set of 6 X 9's in the saddlebag Lids in the spring!!

GREAT amp - used on 2013 Harley Street Glide . sits on top of the radio in the fairing. This is basically the same amp as the SoundStream PN4.520, but several buddies including me find this amp a bit cleaner / louder. Specs are NOT what the say. even 100 at 4 ohm / 130 at 2 ohm is a bit overrated. I bench tested the amp along with others (- 20 to 30% power on 14V). running 4 speakers and bike ROCKS!!!! cannot beat the price.... BE AWARE: you most likely will lose FM stations (some if not all) due to Class D. this applies for Bikes, not car!

I installed the amp together with a kenwood marinne head unit and 2 polk audio speakers in my 2012 Street Glide. Sounded great for a few rides but today just quit. No warning. I took fairing off and when it goes to power up the protection lamp blinks on and then off.....no sound.Looking for warranty now! Arghhhh!!

Great little amp! Very powerful. Fits in fairing but must be lifted about a 1/2" on top of aftermarket radio to clear side brackets. I used an aluminum plate and velcro to secure the amp. My set up is Power Acoustic RZ42000D PA amp, rockville amp kit 8 ga, db651 6.5" speakers front fairing (need 6.75" adapters to fit), db691 6x9 saddle lid speakers and Kenwood KDC-X500 bluetooth cd player. The gains are only set about half way front and rear. The system screams and you hear it loud and clear on the highway. It is true that the rear speakers fade away a bit at speed, but the full sound never goes away. This is hands down the best economic system you can buy with great sound and room to grow! I installed this myself, and saved $500. To some it's not worth the trouble, but for me, I like to save where I can. Hope this helps and ride safe!

Bad Rca jacks , was busted out of the box. It took a while to figure it out as it kept moving around. Rewired the entire system twice. Replaced the cables. Replaced the head unit. Upgraded the wire gauge. Added electric sound processor. Replaced & upgraded the tweeters and rediaphramed the horn. Added ground loop isolator. Was running sound zone troubleshooting sftwr and discovered the issue after all the drama and $$$, and headaches for the Rca . the amp was new so I didn't think about that being the problem!!! And its after warranty!!! Darn!¡¡