HH Advert - July 1983
From Personal Computer World

The Tiger from HH
Whilst there had already been a few computers produced by regular electronics companies, such as Heathkit with its H9, there's probably no other example of a company that was famous for building amplifiers and PA moving in to the micro game. HH had been founded in 1968 near Cambridge and produced a range of studio amplifiers, apparently used by the BBC[1]. After the diversion of the "Tiger", they moved up to Huntingdon and continued to produce studio amps and PA speakers, before being bought out by Laney Amplification. The company identity remains and still produces equipment in the West Midlands.
The machine itself was a little unusual in running three processors - a Motorola 6809, a Zilog Z80A and NEC's 7220 graphics processor to supports its hi-res 512x512 display. It retailed for £3,200 (including VAT) - about £12,600 in 2023.
Sources
Text and otherwise-uncredited photos © nosher.net 2023. Dollar/GBP conversions, where used, assume $1.50 to £1. "Now" prices are calculated using average RPI per year.