A google search led me to this description, I know nothing personally:
Audiomarketing Ltd. (manufacturing for Audio Techniques) a 604-based speaker system called Big Reds.
Big Reds are not to be confused with Tannoy Red's. Audiomarketing's Big Reds were based on a speaker and crossover combination developed in-house at The Mastering Lab, which was in Hollywood (since moved to Ojai California). The Mastering Lab developed (and still do) a lot of their own custom electronics and monitor systems. Among those was system based on 604E's and their own Mastering Labs crossover. The design was licensed to Audiomarketing Ltd., in Stamford, CT, a small audio manufacturer linked by common partners to Audio Techniques, a large pro-audio dealer in NYC (the MCI dealer in town among other things).
The Mastering Labs Crossover is a 16 ohm Network designed originally for the 15" 604E. Altec was producing Duplex speakers with a new 16" cast aluminum frame that was better suited to front loading but the stock 604-8G was an 8 ohm speaker. It is said that Big Reds used 604-E speakers but in fact the 604 variant found in these cabinets is a 16" front loadable frame, Alnico magnet Duplex with a six cell horn. That would be a "G"
Big Red's were very popular and still in use i.e. a pair hangs to this day in the control room of Studio A at Avatar Studios (formerly Power Station)
For a short time Audiomarketing made a thing called a Super Red, probably to compete with the UREi 813 that came out a few years after Big Reds hit the market but people preferred 813's so very few Super Reds were produced and sold.
Audiomarketing Ltd. (manufacturing for Audio Techniques) a 604-based speaker system called Big Reds.
Big Reds are not to be confused with Tannoy Red's. Audiomarketing's Big Reds were based on a speaker and crossover combination developed in-house at The Mastering Lab, which was in Hollywood (since moved to Ojai California). The Mastering Lab developed (and still do) a lot of their own custom electronics and monitor systems. Among those was system based on 604E's and their own Mastering Labs crossover. The design was licensed to Audiomarketing Ltd., in Stamford, CT, a small audio manufacturer linked by common partners to Audio Techniques, a large pro-audio dealer in NYC (the MCI dealer in town among other things).
The Mastering Labs Crossover is a 16 ohm Network designed originally for the 15" 604E. Altec was producing Duplex speakers with a new 16" cast aluminum frame that was better suited to front loading but the stock 604-8G was an 8 ohm speaker. It is said that Big Reds used 604-E speakers but in fact the 604 variant found in these cabinets is a 16" front loadable frame, Alnico magnet Duplex with a six cell horn. That would be a "G"
Big Red's were very popular and still in use i.e. a pair hangs to this day in the control room of Studio A at Avatar Studios (formerly Power Station)
For a short time Audiomarketing made a thing called a Super Red, probably to compete with the UREi 813 that came out a few years after Big Reds hit the market but people preferred 813's so very few Super Reds were produced and sold.