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Onkyo A 9555

Onkyo A 9555
alaScore 81

88 reviews

Jun, 2018

alaTest has collected and analyzed 88 reviews of Onkyo A 9555. The average rating for this product is 4.0/5, compared to an average rating of 4.1/5 for other Receivers & Amplifiers for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Receivers & Amplifiers the Onkyo A 9555 is awarded an overall alaScore™ of 81/100 = Very good quality.

Review analysis

(Based on 88 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 73 of 75 Show Reviews: in English | in other languages (13)

Consumer review ( review summary for Onkyo A 9555


alaTest has collected and analyzed 63 user reviews of Onkyo A 9555 from The average user rating for this product is 4.0/5, compared to an average user rating of 4.0/5 for other Receivers & Amplifiers on

79% of the reviews on give this product a positive rating.

This summary is based on the products: Onkyo A-9555 Integrated Digital Stereo Amplifier (Black) (Old Version)Onkyo A-9555 Integrated Digital Stereo Amplifier (Black) (Old Version)

Jun, 2018

Expert review by (

Onkyo A-9555


It would be hard to beat this amplifier for the price. The remote works with other Onkyo components, such as the DX-7555 CD player, and the unit is compatible with the Onkyo Remote Interactive Dock, which allows docking of other devices such as the...

85 watts per channel into 8 ohm loadSeparate phono input section0.08% THD (Total Harmonic Distortion)Highly ergonomic remote control

Lacks balance control

With features rivaling amplifiers costing more, the sound quality...

Jan, 2009

Expert review by : Steve Guttenberg (

Onkyo A-9555 Amplifier


The look is oh-so 1975, but inside, Onkyo's A-9555 is very twenty-first century. Specifically, the amp features the company's new VL digital technology, which Onkyo claims uses a unique implementation of class D amplification that cancels the...

As I finished up with vinyl, I noted that the A-9555 sounded, well, more analog than digital. I played an advance test pressing of Michael Powers's Onyx Root LP from Sterling Sound. Powers's take on the old Sir Douglas tune, "She's About A Mover"...

Apr, 2008

Expert review by (

Onkyo A-9555


Of similar dimensions and not far off in price, this unit looks like a completely head-on competitor to the NAD C372. Internally, though, there's a substantial difference in that Onkyo's chosen amplifying technology is 'Vector Linear Digital'...

Characterful with a strong Bass

A lack of insight into the sound

There are no obvious nasty habits but it is harder to connect with the music than you'd want

Jan, 2007

Consumer review (

Onkyo A-9555 Integrated Amplifiers


Have owned a A-9555 Onkyo amp for 6years now and I absolutely love it whether watching TV through it or listening to music it performs faultlessly,I consider myself very lucky to own this awesome amp, shame it's discontinued! This is quite simply the...

Apr, 2016

Consumer review (

Onkyo A-9555 Integrated Amplifiers


I bought this amp cheaply (350 euro) to replace my Meridian 555 and 501 ampset to put my Planars 1.5 SE to work properly.

Mar, 2016

Consumer review (

Onkyo A-9555 Integrated Amplifiers


I purchased mine as a factory refurb for $300 several years ago for three reasons. It was significantly less expensive than new. Someone else would have suffered with the frustration of infant mortality and more importantly the quality control testing...

Nov, 2014

Consumer review (

Onkyo A-9555 Integrated Amplifiers


I tried connecting with computer but the output is poor.The speakers are not made by ONKYO as the amplifier.

Apr, 2010

Consumer review (

Onkyo A-9555 Integrated Amplifiers


Bought my A9555 at J&R. Worked 3 hours and just stopped, seems some components stopped working. And there isn't any reason for that since I'm experienced with hifi equipment and handle this one with care...

May, 2009

Consumer review (

Onkyo A-9555 Integrated Amplifiers


After reading all the positive reviews here and elsewhere about this amp, I was looking forward to hearing it with my B&W 683s. Unfortunately, I was left disappointed when the unit I received was defective out of the box - I plugged it in and all I...

May, 2009

Consumer review (

Onkyo A-9555 Integrated Amplifiers

Feb, 2009

Product Specifications

Digital amplification enables significant power efficiency savings and supports smaller, more compact designs - obvious benefits for today's home lifestyles. However, at Onkyo, they believe that these benefits should not come at the expense of the most important consideration: sound quality. With the A-9555 integrated digital amplifier, sound quality takes precedence over all else. By using Onkyo's exclusive Vector Linear (VL) Digital technology to remove any spike noise before it introduces errors into the inversion timing, it is possible to get a highly accurate analog-to-digital conversion. Also, at the heart of the A-9555 is a Pure Stream Power Supply - essentially a large power transformer - that ensures that you always have the on-demand power for the clarity and detail of a range of musical genres. By integrating the fundamentals of audio amplification with the potential of digital amplification, the A-9555 is a revelation in superior audio reproduction.


Input Channel Qty:6
Output Channel Qty:2
Output Power / Total:200Watt

Audio Input

Type: None

Audio Output

Product Type: None

Audio System

Functions (KA):Amplifier
Sound Output Mode:Stereo
Subcategory (KA):Audio components


Headphone Jack: Yes

Dimensions & Weight



Packaged Quantity:1
Product Line:Onkyo A



Remote Control

Type:Universal remote control