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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
$110each
Title
Free Shipping within the Continental US
* TAXES (GST) INCLUDED *
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 32 reviews
84%
(27)
13%
(4)
3%
(1)
0%
(0)
0%
(0)
C
Chad N.
Exceeds expectations

I'm using the ia255.1 to drive a 2.1 stand mount & 8" sub setup in our home office. Sits between an entry level DAC and speakers so using line-in features only at the moment. Solid construction and great tactile feel to the volume knob. Feeds more than enough power to drive my 6 Ohm loudspeakers to blistering volume while keeping everything under control, partly in thanks to the high-pass filter. Great value given price and shipping to Canada was hassle-free.

R
Rich L.
Small wonder!

The RSL iA255.1 is an outstanding compact amplifier that offers incredible value for its price.

One of the standout features of the iA255.1 is its impressive power output. This amp can drive speakers with surprising authority, providing clear and dynamic audio across a wide range of frequencies.

Additionally, the iA255.1 comes equipped with a High-Pass Filter (HPF) function, which is a fantastic feature for those looking to optimize their sound system.

The RSL iA255.1 is a powerful and versatile compact amplifier that offers exceptional performance and features for its price. It's a must-have for anyone looking to enhance their audio system without breaking the bank.

P
P H.
Works great

The little gem brought my old Boston Accoustic speakers back to life. They sound great and has excellent musical depth. Last, bought an 8-inch sub to go with my above bedroom set. Sub sounds good, too. RSL makes great products. WIll buy more.

J
John P.
Great little amp!

Using it for the tv, and it works really well for that. Only thing is, the tv doesn’t have RCA or 3.5 out, only optical or HDMI-ARC, and the amp doesn’t have inputs for either of those. So I put a Topping DAC in between, and the result is even better. Also sounds terrific running Tidal through the tv.
I did have an issue with the original amp, but Rogers had it replaced within a couple of days. Service doesn’t get any better than that.

P
Perry C.
Had a minor issue, but customer service was great.

Overall, I am impressed with the sound and connectivity if the ia255.1. I learned of these small amps on Youtube and after research, decided on the unit from Rogersound Labs due to customer service. Their customer service is great. I have a small issue where the selector switch doesn’t work as designed. I contacted them on this issue and was given the option to send it back via free shipping for replacement. It will work on each input option, but for some reason it locks onto Bluetooth when trying to switch to USB. Since I didn’t want to change back to my PC speakers while waiting for a replacement and I can switch to any input by turning the unit off and back on or down to LINE and to USB quickly, which I don’t plan to do ofter, I decided to keep it. Plus Rogersound didn’t think my issue will cause any reliability issues and I still have the warranty. I am using the ia255.1 in my desktop system using USB-C input from my computer, a pair of Mirage Nanosat speakers and an active sub-woofer. It is a big improvement over my previous PC speaker set-up, especially for higher volume music. I recommend the ia255.1 and would not hesitate to purchase again.

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