Search our site

Basket (0) £0.00

  • 0203 1766 247
view site map
G+ Twitter Facebook Email Facebook

Alesis RA150 Studio Power Amplifier

Code: 12133    Manufacturer Part No: RA150   
Alesis RA150 Studio Power Amplifier

(3 reviews)


Price includes VAT

155.34 € (euros)

2 in stock

Call for Romford store availability

  • Print this page
DV247 expert staff member

Got a question? Our experts are here to help

Need advice on Studio Amplifiers? Contact us on 0203 1766 247, by e-mail, or find an expert.

RA150 Studio Power Amplifier description:

The Alesis RA150 Studio Power Amp 75 Watts RMS per channel at 4 Ohm. Affordable power amplifier for project and commercial recording studios, broadcast and post-production control rooms.

The Alesis RA150 Reference Amplifier, with its rugged construction, striking good looks, groundbreaking new approach to industrial design and a long list of features, will quickly find a home in project and commercial recording studios, broadcast an post-production control rooms around the world. Even with the increasing use of powered speakers, many popular speakers and headphones still require external amplification. As a result, they can more closely match the power needs of virtually any passive speaker or studio monitor, offering a significantly better fit for an exceptionally wide range of budgets, applications and customers. And providing a crisp, clean signal for outstanding performance and extended speaker life. Designed for studio use, the RA 150 amp incorporates advanced convection cooling for heat dissipation. The result is long, stable operation unaffected by heat-related complications, without the added distraction and annoyance of fan cooling. And eliminating the danger of losing hard-to-hear details due to noisy amp performance.

The main features of the Alesis RA150 include:

  • Affordable power amplifier for project and commercial recording studios, broadcast and post-production control rooms
  • Height: 2 RU
  • Rated output per channel: 4 ohms - 75 watts RMS per channel
  • Rated output per channel: 8 ohms - 45 watts RMS per channel
  • Rated output per channel: 8 ohms - 150 watts RMS, bridged mode
  • Signal to Noise Ratio: >105dB
  • Frequency Response: 10Hz - 70kHz +0, -3dB
  • Distortion: < 0.02% @ 4ohms, 20Hz - 20kHz
  • Input Sensitivity: +4dB for rated output
  • Crosstalk: 85dB, 1kHz
  • Output offset: +/- 50 mV, Servo controlled
  • Analog Inputs: 2 x 1/4 inch jack TRS balanced / RCA
  • Analog Outputs: Binding posts
  • Cool, quiet operation (no fan)

MPN: RA150

Manufacturer: Alesis

This page first created on: 24/07/2007

Customer Reviews


customer did not leave any comment here

This customer purchased the product in March 2013

Expertise/Experience: PA and Recording Engineer
Swindon GB

Pros: +
Value for Money. Balanced inputs.

Cons: -
No XLR inputs or Speakon outputs.

This customer purchased the product in December 2012

Expertise/Experience: LIAPEI
Glasgow GB

Pros: +
So far it seems pretty reliable. The clip/protect LEDs seem pretty sensitive so you can see how the amps handling the signal way before you hear any problems. Pretty flat signal.There is a nice buffer that stops loud clicks going through to the speakers if you forget to turn the volume down when you switch on or off. However, this doesn't stop louds clicks going through when your PC/Mac restarts from power saving mode. Not the amps fault.

Cons: -
The description had said it was quiet, beacause it has no fan. This is true. However, it's not silent. There is a slight hum from the unit when on (not thru the speakers). No worse than a HiFi amp but it means you have to be careful where you position it in a small/project/home studio.

This customer purchased the product in June 2012

Free Three Year Warranty

  • When you shop with, we'll give you a three year warranty - free.
  • You'll have complete peace of mind at no extra cost. (Don't forget, we check 140,000+ prices daily to make sure we're the cheapest - and then we add the three year warranty on top!)
  • What's more, we include a 30-day money back guarantee too. If you're unhappy with the product - or you just change your mind, just let us know.
  • See the terms and conditions for full details.