Vintage Bose 901 Series IV Active Equalizer, Pair of Bose 802 Speakers AND a Pair of Bose 502 Speakers 1 Classic Wood. Separate or All. - Etsy New Zealand
EQ901B-I/II Replacement Upgrade for BOSE 901 Series I and II Equalizers | eBay
Vintage Bose 901 Series II Equalizer Front Control Panel • NEW • Replacement • | eBay
EQ901 USB Equalizer
Bose 901 Series VI Active Equalizer Version 2 (110V) 319965-1000