Alesis RA150 No Longer Available

2-Channel Power Amplifier, 75W RMS/ch at 4 ohms, with Advanced Convection Silent Cooling, Class AB
Item ID: RA150

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Alesis RA150
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Serious Studio Bang for Not-so-serious Buck!

Choosing the Alesis RA150 Class AB reference amplifier for your studio is choosing quiet, efficient, and cool-operating power. Ready to stand up to the most professional of studio needs, the affordable 2RU Alesis RA150 reference amplifier sports advanced convection cooling, which delivers exceptional heat dissipation - without the noise of fan-cooling. There are also RCA and 1/4" TRS inputs, so you can power whatever you need - your studio monitors, your headphones system, or home theater - with the Alesis RA150.

Alesis RA150 Class AB Reference Amplifier at a Glance:
  • Delivers quiet, efficient, and cool-operating power
  • Outstanding heat dissipation - devoid of the noise of fan-cooling
  • Offers you great performance, at an excellent cost-per-watt value
Delivers quiet, efficient, and cool-operating power

The Alesis RA150 Class AB power amplifier - a member of Alesis's RA "Reference Amplifier" series - brings quiet, efficient, and cool-operating power to any demanding studio environment. Plus, it's stylishly designed and attractively priced, to give you a surprising value. The RA150 power amplifier offers 75W RMS at 4 ohms per channel, 45W RMS at 8 ohms per channel, and 150W RMS at 8 ohms bridged.

Outstanding heat dissipation - devoid of the noise of fan-cooling

Purpose-designed for studio use, the RA150 reference amplifier features advanced convection cooling. This system delivers outstanding heat dissipation, for long, stable operation - unaffected by typical heat-related complications, and devoid of the noise of fan cooling. The Alesis RA150 is perfect for the studio environment.

Offers you great performance, at an excellent cost-per-watt value

Whether you need to power your studio monitors, your home theater, or your headphones system, you can count on the Alesis RA150. This reference amplifier is a true performer, giving you a lot of wattage for its reasonable price.

Alesis RA150 Class AB Reference Amplifier Features:
  • Class AB power amplifier, designed for use in studios
  • Dissipates heat through advanced convection, so there's no fan noise
  • Features easy-to-access, front-panel volume controls
  • Delivers serious bang for the buck from a cost-per-watt standpoint
Alesis RA150 Class AB Power Amplifier Specifications:
  • 4 ohms, per channel: 75W RMS
  • 8 ohms, per channel: 45W RMS
  • 8 ohms, bridged: 150W RMS
  • Inputs: RCA, 1/4" TRS
  • Signal-to-noise Ratio: >105dB, 22Hz-22kHz bandwidth referenced to rated output
  • Frequency Response: 10Hz-70kHz, +0, -3dB
  • Damping Factor: 200
  • Input Sensitivity: +4dBU (1.23 V) for rated output with input control at maximum
  • Maximum Input Level: +26dBu
  • Input Impedance: 20 k-ohms, balanced, 10 k-ohms unbalanced
  • Crosstalk: -85dB, 1kHz
  • Output offset: +/- 50mV, Servo controlled
  • 2 RU (Rack Units)
  • Weight: 15 lbs.
The Alesis RA150 is purpose-designed for the studio - and gives you a lot of bang for the buck!

Tech Specs

Manufacturer Part Number RA150

Customer Reviews

Based on 15 reviews
See also: Power Amps, Alesis, Alesis Power Amplifiers, Alesis Monitor Amplifiers