ECH = ELECTRONICS COMPASSIONATE HOUSE: ACE TONE Top-8
MATRIXSYNTH: Rare Ace Tone Electric Organ Model TOP 1 Serviced SN 201498
ESTECHO
Ace Tone Top 8 Combo Organ demo (AceTone) - YouTube
Top-5 - Ace Tone Top-5 - Audiofanzine
Old House Studio - Our 1969 Ace-Tone TOP-6 combo organ. Ace-Tone was started by Ikutaro Kakehashi, who went on to found Roland Musical Instruments in 1972. The TOP-6 model is the only