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History of the manufacturer  

Acrosound, Philadelphia

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Name: Acrosound, Philadelphia    (USA)  
Abbreviation: acrosound
Products: Model types Others

Acrosound, Philadelphia.

Small manufacturer of audio and valve transfomers based in Philadelphia, Pennsylvania, USA. Founded 1950 by Herbert Keroes and David Hafler with financing coming largely from Mr. Keroes'es family.
The company also published amplifier designs as a tool to help with the sales of their transformers.
Mr. Hafler left the company in 1954 to form Dynaco.

Founded: 1950

This manufacturer was suggested by Gottfried Silberhorn.

Some models:
Country Year Name 1st Tube Notes
USA  59 Ultra-Linear (UL) II (2) 12AX7  Power amp, mono, with speaker damping control. Power supply output for preamp. 
USA  60 Stereo 20-20 12AX7  Ultra-Linear stereo class A power amplifier. 
USA  58 Ultra-Linear 6SN7GT  Power amplifier, mono, with preamp power output; output transformer Acrosound TO-360. 
USA  61 Pre-Amplifier S-1001 7199  The Acrosound S-1001 is an AC operated 4 tube stereo preamplifier with 3rd channel output.... 
USA  58 Stereo120 12AX7   
USA  56–59 Stereo 20 12AX7  Mono block version of the Acrosound Stereo 20-20.  Performance of the single channel is id... 


Further details for this manufacturer by the members (rmfiorg):

Q: Acro, Philadelphia - Acrosound Modelletbn_usa_acro_products_company.jpg
Acrosound Ultra-Linear Logotbn_usa_acrosound_ul_logo.jpg