This article is from the Ambisonic Surround Sound FAQ, by Martin Leese with numerous contributions by others.
By Minim Electronics Limited. When I last spoke to them in January
1995, they were about to revamp their offerings.
Minim Electronics Limited
Lent Rise Road
Slough SL1 7NY
Cepiar Limited manufacture a reference Ambisonic decoder, the
Ambi-8x. This is intended for professional use, and is priced
accordingly. Using plug-in resistor boards, the decoder can be
configured for 4, 5, 6, 7 or 8 speakers, and for horizontal or
periphonic (full-sphere) surround sound. Cepiar also plan to release a
consumer Ambisonic decoder in the second half of 1998.
11 St Ethelwold's Close
Cambridgeshire CB6 3AX
In March 1993, Sound & Vision (see References) reviewed the Onkyo
TX-SV909PRO A/V Receiver which incorporates an Ambisonic decoder. When
in Ambisonic mode, the receiver is configured only for four
speakers. The successor to the Onkyo 909PRO was the Onkyo 919THX, but
this did not incorporate an Ambisonic decoder.
Onkyo USA Corporation
200 Williams Drive
Onkyo Europe GMBH
Telex: 8517916 ONDU D
Meridian's 565 DSP Surround Processor, which can be configured for 4,
5, 6 or 7 speakers, incorporates an Ambisonic decoder. Using delay
lines and other tricks, the aspect ratio of the area enclosed by the
speakers can be varied between 0.5:1 and 2:1.
Meridian Audio Limited
Cambridgeshire PE18 6ED
Meridian America Inc
3800 Camp Creek Pkwy.
Suite 112, Bldg. 2400
The October 1995 issue of Audio magazine contained an annual equipment
directory that included Sansui and Legacy Audio as suppliers of
Ambisonic receivers and decoders, respectively. The Sansui receiver,
model RZ2900, does not have an Ambisonic mode, so this was a
misprint. When I last spoke to Legacy Audio in July 1996, they had
decided against adding an Ambisonic mode to their Steradian product.
3023 E. Sangamon Ave
Phone: +1-217-544-5252 (also 1-800-283-4644)
Audio magazine's 1996 equipment directory did not have an indicator
specifically for Ambisonics.
Version 2.2 of this FAQ suggested that Maplin Electronics plc offered
an Ambisonic decoder kit. This was incorrect. In 1994, Electronics -
The Maplin Magazine carried a series of articles on surround sound
(see the Woodgate 1994 reference), but referred readers to Minim
Electronics Limited for the supply of Ambisonic decoders.
If anybody knows of other domestic Ambisonic decoders, will they
please let me know. I am particularly interested to hear about stand
alone Ambisonic decoders that are not bundled together with home