Quad 909 power amplifier ex display

Regular Price: £899.00

Special Price: £599.00

Click on the image to enlarge and zoom.

This product is no longer available

Try these alternatives...

At this amazing price is an ex display Quad 909 Power Amp in silver finish, excellent condition. No original packaging but will be securely packed for safe delivery - comes with mains cable.


Building upon Peter Walker's seminal Quad 405 current dumping design from the 1970's the 2 x 140W into 8 ohms Quad 909 stereo power amplifier has more power and a refined circuit with audiophile components, but retains the genius of the original current dumping circuit.

In the Quad 909 a low power class A amplifer compensates for distortions introduced by the high power class B amplifier, so that the complete output power is dependant only upon the class A amplifier, which has been engineered to deliver incredible linearity and musicality.

Full electronic loudspeaker protection is provided by the Quad 909.

Model Quad 909
Specification Maximum Power Output     140Wrms (8ohms), 250WRMS (4ohms)
Maximum Output Current     11 Amps peak each channel
Total Harmonic Distortion     0.02% (100W into 8Ohms; 20Hz - 20kHz)
Input Sensitivity (phono)     775mV
Output Impedance     1.5uH parallel with 0.05 Ohms
DC Offset Voltage     less than 10mV
Frequency Response     13Hz to 40kHz (+0dB/-1dB)
Crosstalk at 1kHz     -90dB at 1kHz
Signal to Noise ratio (70W)     108dB (20Hz to 20kHz)
Dimensions (H x W x D)     140 x 321 x 240mm

Customer Reviews

Good sound, excellent bass control, great quality Review by Crystal Faulkner
My dad bought this unit as his valve power amp went up in smoke. The Quad is a good substitute for the Class A push-pull valve amp but does not have the absolute detail.

Anyway Dad is happy as he can now crank it out and keep the neighbors awake. (Posted on 01/08/2013)

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