History of the manufacturer
Acoustical Manufacturing Co. Ltd, The; Huntingdon
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| Name: | Acoustical Manufacturing Co. Ltd, The; Huntingdon (GB) |
| Brand: |
 |
| Abbreviation: | acoustical |
| Products: | Model types |
| Summary: |
The Acoustical Manufacturing Co. Ltd, St. Peter Road, Huntingdon, England. Better known with their brand name "Quad", and still active. |
| Founded: | 1936 |
| History: |
After working for EMI and GEC, audio master Peter James Walker founded in 1936 the 'Acoustical manufacturing company'. The company produced 'Public Address' systems and compact amplifiers (relatively speaking). In 1949, the company produced the 'Corner Ribbon Loudspeaker, producing higher frequencies than had ever previously been achieved. In the same year, the QA12/P was launched and the brand 'QUAD' was born from an acronym 'Quality Unit Amplified Domestic'.
Milestone in the history was the first full-range electrostatic loudspeaker 'Quad ESL', introduced in 1957.
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This manufacturer was suggested by Georg Richter.
Some models:
| Country | Year | Name | 1st Tube | Notes |
|---|---|---|---|---|
| GB | 56–81 | Quad ESL 57 Electrostatic-Loudspeaker | The Quad ESL 57 was manufactured for a long period because it was not easy surpassed fo... | |
| GB | 67–69 | Quad FM Tuner II (2) | 6BH6 | FM Tuner with Foster-Seeley discriminator. Built-in Stereo-Decoder. Each diode type lis... |
| GB | 65 | AM 3 Tuner [European] | EF89 | AM Tuner, Overseas Version with different RF coverage and bandwith. |
| GB | 60–67 | Quad Tuner AM 2 [European Model] | EF89 | AM Tuner for use in combination with a Quad Amp., Overseas version with different RF cover... |
| GB | 54 | Quad II (2) | EF86 | Monaural power amplifier. Also power supply for the accompanying Quad QC II control unit a... |
| GB | 56 | QUAD Control Unit 22 | EF86 | Preamplifier with extraordinary phono equalisation: 25, 50, 75, 318, 450 and 3180 µsec dif... |
| GB | 80 | 44 | Vorverstärker zur Endstufe Quad 405. | |
| GB | 75 | 405 | Stereo- Endstufe mit (seinerzeit) neuer Schaltungstechnik (Current Dumping Amplifier). | |
| GB | 56 | AM1 | AM-Tuner for use with a Quad-Amplifier. | |
| GB | 59–68 | Quad FM Tuner FM1 | 6BH6 | Matching with Quad 22 System.FM Tuner with Foster-Seeley discriminator. Later versions wit... |
| GB | 65 | Quad Multiplex Decoder | OC44 | Stereo Decoder, passend zum Quad FM Tuner. |
| GB | 54 | Quad Control Unit QC II (2) | EF86 | Preamplifier, mono. The unit takes its power from the main amplifier type Quad II. We nee... |
[rmxhdet-en]
Further details for this manufacturer by the members (rmfiorg):
logo 1951
Werbung 1951 für Wireless Q.U.A.D. Tuner Unit
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