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iA255.1 Ultra-Compact Integrated Amplifier

The iA255.1 takes an ultra-compact form factor to a new level of sound quality and feature-rich performance. As a 2.1 integrated amplifier with 55 watts per channel RMS, equipped with high-quality audiophile-grade components throughout a cleaner and more detailed high-fidelity listening experience fits in the palm of your hand. The small stature allows for use in a myriad of applications, from high-end desktop systems, or vinyl-listening sessions, to stepping up massively from your TV speakers/soundbar, or adding additional channels from your AVR's extra pre-outs. In all cases, the clean 55 watts per channel of power gives you plenty of juice to run your speakers at high volumes with exceptional clarity, sound staging, and dimension.

  • True 55 watts per channel (x 2)
  • Easy Hi-Fi 2.1 audio in any room
  • Line-in, Bluetooth, USB Audio
  • Selectable 90Hz high-pass filter
  • Stereo pre-out / subwoofer-out

Terms and conditions:

  • Free shipping within 48 states
  • 2 year warranty
  • $15 flat-rate return fee per iA255.1
$110 each
Title
Free Shipping within the Continental US
Taxes Included
View Specifications
If you’re not thrilled with an RSL product within 30 days, return it hassle-free. Just contact us and we will email a return label with instructions. A return fee will apply to each Speedwoofer, wireless device, and amplifier / AV receiver included. (For International Returns are different, call us.) International returns are to be arranged and paid by the customer. RSL does not cover international return shipping, or shipping insurance.
All products ship for free to the contiguous 48 States. This includes all Speedwoofers, System Packages, A/V Receivers, Individual Speakers, and Accessories!
We’re ready to answer your questions, provide support, and even help you plan your home theater. Just give us a call at 800-905-5485 or email us at sales@rslspeakers.com.
Our average turnaround time is one business day. Orders received before 11AM Monday – Friday often ship same day!
Return any RSL speaker within 30 days in "like-new" condition, and receive your full money back. EXCLUDES SPEEDWOOFERS, iA255.1s, and WIRELESS TRANSMITTERS. *Items received with blemishes or without proper packaging may result in minor fees.
We offer highly discounted shipping rates to virtually anywhere outside of the contiguous US via premium air-freight shipping.

ULTRA-COMPACT INTEGRATED STEREO AMPLIFIER

Product Preview
Features
Technical Analysis
Included: 1x ia255.1

FEATURES

  • True 55W per channel (55Wx2)
  • Easy Hi-Fi 2.1 audio in any room
  • Line-in, Bluetooth, USB audio
  • Selectable 90Hz high-pass filter
  • Stereo pre-out/ sub-out

CONTENTS

  • IA255.1 amplifier x 1
  • 24VDC/7A External Power Supply (5.4”x1.25”x2.4”) x 1
  • 3.5ft. USB-A to USB-C cable x 1
  • 1ft. 3.5mm Stereo to Female RCA cable adapter x 1
  • Micro Bluetooth Antenna x 1
iA255.1 Crosstalk - AP measurement
iA255.1 - Signal to noise AP measurement
iA255.1 - Frequency Response Full range and High-pass - AP measurement

Customer Reviews

Based on 23 reviews
87%
(20)
9%
(2)
4%
(1)
0%
(0)
0%
(0)
100.0
S
Scott P.
Just what I needed

So glad I found this. Does just what I wanted for the price I paid and more. I didn't buy it for the bluetooth feature but I tried it before writing this and it was pretty nifty and worked great. I bought it for my basic turntable that I wanted speakers for. I learned of this product from a video from "cheapaudioman" Being able to order it online without going through that "A....." behemoth store was another added bonus.

R
Royce S.
Not sure yet.

I hooked up the amplifier to two sets of speakers. The sound quality was not what I was expecting. I have hooked both sets of speakers to a really old 5 watt Radio Shack amplifier and the speakers sounded much better. I would like to hook up the new amplifier to one more set of speakers to see what they sound like, along with a subwoofer. Testing will continue.

S
Steve S.
Value / Quality

Originally looking for a wifi adapter for my aging integrated amp but already being an owner of RSL equipment, I thought I would give this a try instead. Wow! Using it like a rental and it's held up well. Don't hesitate.

a
arthur m.
HPF switch is worth its weight in gold

Very high quality with an HPF built-in to take the low end off your mains, super great for running bookshelf speakers with a sub and only $20 more than the junk on Amazon. Surprised these aren’t more popular.

J
Jeff B.
Great Hardware

I'm not an expert in this space, but based on my research, this seems like one of the best pieces of hardware you can buy at this price for this purpose. Combine that with incredible customer service and it's hard to imagine buying anything else.

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SPECIFICATIONS

iA255.1 Ultra-Compact Integrated Amplifier
  • Power: 55 Watts RMS/Channel <1%THD @ 4ohm
  • Type: Proprietary audiophile pre-amp stage, Class D output using MA12070 IC by Infineon
  • S/N Ratio: 106dB
  • Channel Separation: 100dB
  • THD+N: <0.006 % 1000 Hz ~10W
  • Internal High-pass Filter: 12dB/octave @ 90Hz, by passable via rear toggle switch
  • Efficiency: >92% efficient
  • Input Sensitivity: 185mV
  • Input Impedance: 40k ohm
  • Inputs: Stereo RCA (Line level), USB Audio (Type-C), Bluetooth 5.0 (APTx)
  • Speaker Outputs: Gold-plated fully-insulated Clear banana jacks (chassis mounted)
  • Pre-Outs: 3.5mm Stereo full-range signal output (standard line level)
  • Bluetooth: Up to ~30ft. wireless range with detachable compact antenna
  • Reset: Recessed button to forget and unpair BT device
  • USB Audio: 16 bit, 48khz*(pending device interoperability)
  • Power Consumption: 30W TYP. 168W MAX
  • Bass: +-9dB @ ~100 Hz Varying shelf compensation
  • Treble: +-9dB @ ~5000 Hz Varying shelf compensation
  • Chassis: 6061 Extruded Aluminum Housing and CNC machined panels
  • Product Dimensions: 5.48″ x 1.46″ x 5″
  • Packaging Dimensions: 13″ x 3″ x 8″
  • Product Weight: 0.87lbs
  • Shipping Weight: 2.2lbs
  • Warranty: 2 years
RSL Speakers

iA255.1 Ultra-Compact Integrated Amplifier

From $100 $110 

The iA255.1 takes an ultra-compact form factor to a new level of sound quality and feature-rich performance. As a 2.1 integrated amplifier with 55 watts per channel RMS, equipped with high-quality audiophile-grade components throughout a cleaner and more detailed high-fidelity listening experience fits in the palm of your hand. The small stature allows for use in a myriad of applications, from high-end desktop systems, or vinyl-listening sessions, to stepping up massively from your TV speakers/soundbar, or adding additional channels from your AVR's extra pre-outs. In all cases, the clean 55 watts per channel of power gives you plenty of juice to run your speakers at high volumes with exceptional clarity, sound staging, and dimension.

Terms and conditions:

Title

  • Factory New
  • A. Just like new
  • B. Minor blemishes
  • C. Noticeable blemishes
  • Bundle
  • Closeout
  • Blemish
  • Warranty Replacement
View product