Pickup list 0
Shop by vehicle

Alpine

Alpine R-A90S Amplifier

Multi-channel amplifier · Model R-A90S

  • 6-channel
  • 75 W RMS x 4 + 150 W RMS x 2 @ 4 ohm
  • 100 W x 4 + 250 W x 2 @ 2 ohm
Alpine R-A90S Amplifier

$699.95

Call or text to confirm it is on the wall before you drive over.

Buy Now, Pay Later. 100 days same as cash, or up to one year with Synchrony. See the Payment Plan

  • Local pickup Cash & Carry at our South Gate shop
  • Payment Plan Buy Now, Pay Later
  • Installed here Tony installs it in our bay
  • Se habla español ask for Tony
Hold for pickup Call (323) 944-7844 Text us

What it is

Alpine R-Series 6-channel amp for front and rear speakers plus subwoofers.

The Alpine R-A90S is an R-Series 6-channel Class D car amplifier with staggered power. It delivers 75 watts RMS x 4 plus 150 watts RMS x 2 at 4 ohms, or 100 watts RMS x 4 plus 250 watts RMS x 2 at 2 ohms, with 10Hz-45kHz response and better than 85dB S/N. Adjustable high-, band- and low-pass filters on each channel pair and optional RUX-KNOB.2 control. One amp for front and rear speakers plus subwoofers.

Pickup is at the South Gate shop. Call to confirm it is on the wall before you drive.

Specs

BrandAlpine
ModelR-A90S
TypeMulti-channel amplifier
Channels6 channel
Features
  • 6-channel
  • 75 W RMS x 4 + 150 W RMS x 2 @ 4 ohm
  • 100 W x 4 + 250 W x 2 @ 2 ohm

Guides and comparisons

  • 6-Channel and 8-Channel Car Amplifiers Compared: JL Audio VX, RD and XDM and Alpine R-A90SA 6- or 8-channel amp powers a whole system from one chassis: front components, rear speakers and, on some models, a sub. On our listings the Alpine R-A90S and JL Audio RD800/6 are staggered six-channel amps with four smaller channels and two bigger ones for a sub, and the JL Audio XDM600/6 and XDM800/8 give equal power on every channel. The JL Audio VX600/6i and VX800/8i add a built-in DSP for crossovers, EQ and time alignment, which is what an active front stage needs. Pick by how many speakers you are powering and whether you want the tuning built in.

Pairs well with

Pick it up in South Gate

Tony can hold it at the counter. You pick it up here.

Open the map

More 6 & 8-Channel Amplifiers

Alpine R-A90S Amplifier: questions

Will it fit my car?

Bring the year, make, and model. Tony checks fit at 8696 Atlantic Ave before anything goes in the car. Call to confirm this piece is on the shelf.

Can I buy it on this page?

No. Call (323) 944-7844, text (213) 674-9042, or email djcustomaudio2@gmail.com. Pickup is at the shop.

Is a Payment Plan available?

Payment Plan available, including 100 days same as cash. Approval and terms set by the provider. Call or stop by to apply.

Hold for pickup

CallTextEmail