Onkyo A-9555 integrated amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state, class-D, remote-controlled integrated amplifier. Power output at 1kHz: 85Wpc into 8 ohms (19.3dBW), <0.5% THD. Frequency response: 10Hz–60kHz, +1dB/–3dB (CD). THD: 0.08% (1kHz, 1W). Damping factor: 25 (1kHz, 8 ohms). Signal/noise ratio: 100dB (CD, IHF-A), 70dB (phono, IHF-A). Input sensitivity and impedance: 200mV, 50k ohms (CD); 2.5mV, 50k ohms (phono). Recommended speaker impedance: 4–16 ohms. Power consumption: 110W (0.3W in standby).
Dimensions: 17 1/8" (435mm) W by 5 13/16" (148mm) H by 16 15/16" (431mm) D. Weight: 28.7 lbs (13kg).
Serial Number Of Unit Reviewed: 1678910037 (auditioning); 660910005 (measuring).
Price: $699. Approximate number of dealers: 800. Warranty: 2 years, parts & labor.
Manufacturer: Onkyo U.S.A. Corporation, 18 Park Way, Upper Saddle River, NJ 07458. Tel: (201) 785-2600. Fax: (201) 785-2650. Web: www.us.onkyo.com.

Onkyo U.S.A. Corporation
18 Park Way
Upper Saddle River, NJ 07458
(201) 785-2600

Alec in San Francisco's picture

Alec in San Francisco's picture

Hi, I own an A-9555 that I've been very happy with.  I've been driving 8-ohm B&Ws with it, but I've been thinking of buying a pair of 6-ohm Monitor Audio speakers.  I'm not technically savvy enough to understand more of this writeup that a harmonic appearing with 4 ohms and the general conclusion that the amp is more comfortable with higher impedances.  In your opinion, would it be comfortable at 6 ohms?

John Atkinson's picture

Shouldn't be a problem, Alec.

John Atkinson

Editor, Stereophile

Alec in San Francisco's picture

Thanks, John!  I really appreciate the reply.

Madmax's picture

Or can you recommend other amps in that price range that would be a good match? Thanks in advance!!

Edgar's picture

Hi there,Got a problem with it,take it to service center and guess what? the part is broken is not available any more. (((
It is 1B093508-1B
Can anybody help to direct where i can find it or any other replacement that is possible?Any help will be appreciated.

Thank you
Best Regards