Yamaha TG55 Synth Module


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The Yamaha TG55 is a 1U rack module version of the SY55 keyboard. Launched in 1989, the TG55 is a ROMpler – a synth that plays back samples held in memory with filters, ADSR envelopes & modulation to modify the sounds. Rather than using oscillators for the basic sounds, like an analogue synthesisers, it uses 16-Bit PCM audio samples. Each sample oscillator is referred to as an element and each patch can have 1, 2, or 4 active elements

The TG55 has 16-note polyphony, is 16-part multitimbral and has 64 preset and 64 user patches. A number of pre-programmed expansion cards are available (S5502 Drums 1, S5504 Brass Section, S5531 Syn Wave 1 and S5551 Rock & Pop) and there’s a front-panel RAM card slot to store patches

“Sounds are decidedly varied – I’m tempted to call them idiosyncratic, although perhaps adventurous would be more appropriate”

“If I were to have this unit taken from me, would probably put a voodoo curse out on the nabbing bastard”

This was the state-of-the-art in the late eighties and, though things have moved on since then, the TG55 has a number of sounds that work well today and which sound different to modern synth patches

The TG55 is a single-space rack unit with a front-panel headphone socket and datacard sockets for data and waveform cards. The back panel has four outputs on jack sockets plus Midi In / Out / Thru jacks and a fixed power cable with a UK plug. Euro Schuko plug adaptor supplied on request

1U device suitable for mounting in a standard 19" rack. Power input is via a fixed cable with a UK plug UK. Euro Schuko adaptor supplied on request

Owners manual


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In good used condition. Tested & working 100%. Photos show the item for sale

Vintage gear

All vintage gear will have case scratches and marks. It may also have, or develop, noisy pots and switches. I make my descriptions as accurate as possible and note any existing defects. I test each item before shipping, and and supply a test sheet, but please understand that vintage gear will not be perfect and adjust your expectations accordingly