Sounds!
Yep my 3d Superwoofer (by Hitachi) was the same took about 200 D Cell batteries and for a few hours...
First one had three 8 inch speakers, 1 cassette deck
Next one had two tape decks to untangle spooled tapes from and had sprouted another speaker to drain the D cells
Two decks... Duplication station? And once we twigged you could rip off all your spectrum games...
Yep my 3d Superwoofer (by Hitachi) was the same took about 200 D Cell batteries and for a few hours...
First one had three 8 inch speakers, 1 cassette deck
Next one had two tape decks to untangle spooled tapes from and had sprouted another speaker to drain the D cells
Two decks... Duplication station? And once we twigged you could rip off all your spectrum games...