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Ariel Cabello

Quad 303 Stereo Power Amplifier (1978-84)

Elco's replaced and sound superb! 

For the other Quad 33 modules:
https://veiling.catawiki.nl/aanbod/oranje40

Description
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 load.

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 sharing network.

Specifications
Power output: 45 watts per channel into 8Ω (stereo)
Frequency response: 30Hz to 35kHz
Total harmonic distortion: 0.1%
Input sensitivity: 0.5V
Signal to noise ratio: 100dB
Speaker load impedance: 4Ω to 16Ω
Dimensions: 120 x 159 x 324mm
Weight: 8.2kg

Powercable included

 - Number of items: 4 - Including: Amplifier - Brochures, Power cord

Quad - 303 Power Amplifier - Amplifier

Audio Equipment

Reserve price

No reserve price

Buy now

Closing date

Thursday

Wednesday

today

tomorrow

Tuesday

Friday

18 January

Saturday

Budget

From

Location

The Netherlands

Italy

Germany

Belgium

France

Spain

Romania

Portugal

Poland

Hungary

Japan

Austria

Denmark

Greece

Finland

Croatia

Hong Kong

Lithuania

Latvia

Bulgaria

Switzerland

Estonia

United Kingdom

Dimensions

Height

Width

Depth

Brand

Bang & Olufsen

Sony

Bose

Marantz

Technics

Philips

Akai

Pioneer

Denon

Harman Kardon

Yamaha

Onkyo

Grundig

Sansui

Dual

Luxman

Kenwood

TEAC

Bower & Wilkins

Revox

Telefunken

Klipsch

Object

Speaker set

Hi-fi set

Solid state integrated amplifier

Cassette recorder-player

Record player

Solid state stereo receiver

CD player

Turntable

Audio-cassette deck

Radio

Solid state multi-channel receiver

Audio amplifier

Stereo set

Speaker

Solid state amplifier

Subwoofer speaker set

Tube radio

Reel to reel audio

Audio component

Headphone

Tuner

Solid state stereo amplifier

Portable radio

Walkman

Blank audio cassette

Country of origin

Asia

United States

Europe

Material

Metal

Steel

Plastic

Aluminium

Condition

Good

Excellent

Very good

Mint

Various conditions

Very Good Plus (VG+)

Mint & Sealed (M&S)

Excellent (EX)

Fair & Poor

Good condition - used with small signs of ageing

As new - unused

Excellent condition: barely used with minimal signs of wear

Mint (M)

Near mint

Good condition

Good condition - used with small signs of aging & blemishes

Extras

No extra's

Power cord

Remote control

+ Extra item (see description)

Power Adapter

Power supply

Refurbished

Original user manual

Case

No cables

Brochures

Flight Case

Anti-pop Filter

Microphone Shock Mount

In original box

Period

2010-2020

2020+

2024

2000-2010

1940-1950

1960-1970

Signature

Not signed

Record Label

Music memorabilia type

Box Set

Tested and working

Tested and working/playable

Not tested

1900-2000

After 2000

1400-1900

Qualification

Reproduction/replica

Creator

Japan & Related

Dieter Rams

Marco Zanuso

Marc Berthier

A.A. Patijn

Adriano Rampoldi

Mint - Number of items: 100 - Including: Blank audio cassette - Box

Custom brand - New old stock - 60 minutes - Blank audio cassette

Italy -   - 1969

Brionvega fd1102 - Marco Zanuso - Audio rack - Steel - Wireless receiver

Excellent - Number of items: 1 - Including: Speaker - No extra's

Heco - Astron Subwoofer Speaker

Excellent - Number of items: 1 - Including: Power cord

Technics - SL-D210 Record player

Mint - Number of items: 1 - Including: Headphone - Power Adapter

Richard Orlinski - Kong Headphone Headphone - Multiple models

Mint - Number of items: 15 - Including: Blank audio cassette - No extra's

BASF/ Philips - BASF CE II/CS II/ FE I/ LH I & Philips CD One/C60 Blank audio cassette - Multiple models

Excellent - 1998

Sony Premium-74 Gold Minidisc Number of items: 40

Good - Number of items: 1 - Including: Stereo set - No cables

Braun Dieter Rams - Atelier 1-81 with Braun L1 speaker Stereo set - Multiple models

Excellent - Number of items: 1 - Including: Equalizer - Power cord

Pioneer - SG-540 Equalizer

Excellent - Number of items: 1 - Including: Solid state integrated amplifier - No extra's

Pioneer - SA-9900 - fully serviced - Solid state integrated amplifier

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Quad - 303 Power Amplifier - Amplifier

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