The Quad 303 is a two channel power amplifier primarily designed
for high quality domestic installations.
It is ideally suitable for driving loudspeakers in the 4-16 ohm
range and will provide an output of up to 45 watts per channel depending upon
the load impedance.
The input required for full output is 0.5 Vrms unbalanced.
Transistor triples are employed in an original circuit to
provide a completely symmetrical output stage, quiescent current independent of
junction temperature and symmetrical current and voltage limiting.
Harmonic and intermodulation distortion products in the audio
range are so low that they are difficult to measure in meaningful terms.
The amplifier is unconditionally stable and may be used with any
For special applications requiring continuous power into low
(less than 8 ohm) or reactive loads such as driving synchronous motors, etc, the
maximum power or duty cycle may be limited by the ability of the heat sink to
dissipate the heat generated (max heat sink temperature 70 degrees).
The two channels may be used together or independently but the
two outputs should not be paralleled without incorporating some form of current
Please view our other listings to see more items of quality Hi-Fi for sale.
Will be VERY well packed and promptly sent via insured, trackable courier delivery - or collect and save on the delivery charge.
Payment and shipping information:
Can be collected (if collecting please pay on collection) or will ship (very well packed and fully insured) worldwide - please see below for examples of shipping costs to various countries - if you can't see your destination please email for a quote before bidding. Please note the shipping prices shown below are the ones that will apply and not necessarily the ones shown in the ebay shipping table which has insufficient options to show the cost of shipping to various destinations within Europe. Please wait to be invoiced with the correct shipping amount before making payment.
Clearing of goods through local customs is the buyers responsibility as is payment of any duties and taxes that may be levied
Methods of payment are Cheque, Bank Transfer, Paypal or payment on collection. For overseas bidders, payment can be made by bank transfer (preferred) or paypal.
- England, Wales & Scottish Lowlands - £12.95
- UK Highlands & Islands - £16.95
- Ireland, France, Germany, Belgium, Holland- £24.95
- Italy, Spain - £27.95
- Austria, Denmark, Portugal, Sweden - £29.95
- Poland, Czech Republic, Greece, Hungary, Finland, Estonia, Slovakia, Slovenia, Romania - £34.95
- USA & Canada - £39.95
- Switzerland: £39.95
- Australia, Hong Kong, Japan, Malaysia, Singapore, S. Korea, Thailand, Taiwan - £59.95
- Russia - £99.95 (Via Royal Mail Parcelforce)
- Cyprus £59.95
- Ukraine, Belarus - £39.95
- New Zealand, Vietnam - £69.95
- Brazil - £99.95
- China (via Royal Mail Parcelforce): £129.00