Onkyo A-9000R Stereo Integrated Amplifier


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Onkyo A-9000R is an integrated stereo amplifier rich with features and capable of 140W per channel from the Reference range of products. AWRAT (advanced wide range amplifier technology) circuitry gives this amplifier very low distortion at all audio frequencies and power outputs, whilst the quad push pull output stage is both rugged and electronically protected from short circuits.

A low vibration chassis reduces external sound energy to disturb the internal circuitry, backed up by isolated printed circuit boards which float independent of the chassis for even better mechanical isolation.

Three stereo analogue inputs are complimented by four optical/ coaxial digital audio inputs, allowing a new breed of digital music source to be connected. The single USB input has asynchronous USB transfer of data, so the A9000R's internal precision clock is always in charge of the rate of data transfer, which benefits sound quality. Twin Wolfson 24 bit 192kHz DAC's process the digital data stream precisely, so that your music is presented with great fidelity.

A high quality moving magnet/ moving coil phono stage is fitted, allowing you to connect a quality turntable with ease. A dedicated headphone amplifier is also fitted, ensuring that your headphone listening is as stunning as the rest of the amp.


Power Output 140 W/Ch
(4 Ω, 20 Hz–20 kHz, 0.05%, 2 channels driven, IEC)
75 W/Ch
(8 Ω, 20 Hz–20 kHz, 0.05%, 2 channels driven, IEC) 
Dynamic Power  450 W (1 Ω),
310 W (2 Ω),
230 W (3 Ω),
180 W (4 Ω),
100 W (8 Ω) 
 THD+N (Total Harmonic Distortion + Noise) 0.006% (Half power)
0.03% (1 kHz, 1 W Output)
0.008% (20 Hz–20 kHz, Half power)
0.03% (20 Hz–20 kHz, 1 W Output) 
 Damping Factor  130 (1 kHz, 8 Ω)
Input Sensitivity and Impedance   150 mV/47 kΩ (Line)
2.25 mV/47 kΩ (Phono MM)
0.18 mV/100 Ω (Phono MC)
Rated RCA Output Level and Impedance   1 V/300 Ω (Pre out)
Maximum RCA Output Level and Impedance  5 V/300 Ω (Pre out 
Phono Overload   70 mV (MM, 1 kHz, 0.5%)
5.2 mV (MC, 1 kHz, 0.5%)
 Frequency Response 10 Hz–100 kHz/+0 dB, -1 dB (1 W, Line)
1 Hz−250 kHz/+0 dB, -3 dB (1 W, 8 Ω) 
 Tone Control 107 dB (Line, IHF-A)
60 dB (Phono MM, IHF-A)
70 dB (Phono MC, IHF-A)  
 Signal-to-Noise Ratio 107 dB (Line, IHF-A)
60 dB (Phono MM, IHF-A)
70 dB (Phono MC, IHF-A)  
Speaker Impedance 4 Ω–16 Ω (A or B)
8 Ω–16 Ω (A + B)
 Power Supply AC 230 V~, 50 Hz 
Power Consumption   300 W
 Standby Power Consumption 0.2 W 
 Dimensions (W x H x D) 435 x 175 x 435 mm 
Weight 18.5 kg 

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Providing your item is in stock, the order is usually dispatched within 24 hours. Please remember that postage and packing is completely free for orders over £50*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.

Deliveries usually take 1-3 working days. The majority of orders are sent via our couriers'; Interlink Express on a next-day-delivery service. Smaller, low value or light-weight items are normally posted using Royal Mail Recorded or Royal Mail Special Delivery.

Once your product has been dispatched, you will be notified via email and sent a unique consignment number, you can use this number at http://www.interlinkexpress.com to check the status of your delivery. If you have provided a mobile telephone number, Interlink's Predict service will notify you by text (and email) of a one-hour delivery window. If the window they suggest is inconvenient, you can change the date of delivery to a later one via text or email.

*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however delivery to these locations will incur a charge and can only be sent via a 2-day service.

Shipping CostsMainland UK (Next-Day)Offshore/Out-of-reach (2-day)Northern Ireland, Channel Islands, Isle of Man, Scottish Islands, Scilly IslandsRepublic of Ireland (2-day)
Under £50 Orders £7.50 £12.50 £15.00
Over £50 Orders FREE £19.99 £29.99
Surcharge Orders £50.00 £69.99 £79.99
Saturday Delivery £12.99 N/A N/A
Sunday Delivery £12.99 N/A N/A
Saturday by 12 Delivery £35 N/A N/A


Post codes exempt from the free delivery service include:

Scottish Highlands Post Codes: AB30-38, AB41-42, AB44-56, FK17-99, G83, IV1-28, IV30-39, IV52-54, IV63, KW1-14, PA21-33, PA34-40, PH15-26, PH31-41, PH49-50
Islands Post Codes: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Northern Ireland: All BT postcodes
Channel Islands Post Codes: JE, GY
Scilly Isles Post Codes: TR21, TR22, TR23, TR24, TR25