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Crumar Trilogy

Analog synthesizer with digital controlled oscilator (1982)

Crumar-trilogy

"Italian vintage synthesizer with 3 sections: strings, polysynth and organ, that's why it is named trilogy - also a slimmed-down version called Crumar Stratus  " 

 Main Data 

synth

Company: Crumar
Model: Trilogy
Class: synthesizer
Keyboard:  49 keys, Non-weighted, Plastic
Dates: 1982
Country: italy
Weight: 19  Kg
Dimensions: / mm
Price: 700€

Display: none
Technology: analog
Polyphony: 1  for mono part + full polyphony for strings and organ
Multitimbric: 3 parts 
Oscillator: DCO Sawtooth and Square (for synth section)
Noise generator: white
Filter: resonant analog based on CEM 3320
Envelope: 1 ADSR for synth + 1 AD for strings
Effect: phaser on strings
LFO: 1 delayed with fade IN
MODULATION DESTINATIONS: Oscillator Pitch, VCF and VCA
CV gate: none
Midi: none
Memory: 8 patches preset (internal trimmer allows to change settings from factory)
PSU: internal

IC: 1 M2020 VCA) / 7 CEM3310 EG /  6 CEM3320 VCF /  6 CEM3330 VCA / TCA350Z BBD  (phaser)/   MK50240N top octave generator  / TDA1008 divider

Keyboard controls:
- Glide section with amount and speed + 4 glissando modes
- Joystick -> modulation to DCO / VCF / VCA

Rear connection:
- organ output
- polysynth out
- string out
- main out
- pedal input for release
- sync pedal input (DCO sync waveform)
- pedal input for VCF control on cutoff

none yet

- No official VST plugin


 - Trilogy service manual download

- user's manual download

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 In details 

Crumar

 VOICE the synth is divided in 3 sections each with volume mixer control:
- organ
- strings
- synth

Let's see first the organ and strings which are simpler, based on Top Octave Synthesiser  TOS - MK 50240 from Mostek and TDA1008 dividers with a complex paraphonic structure:

String section

Two footage: 8' and 16'  + analog phaser
- Timbre is a sawtooth modulation
-attack + release amount

Organ section

4 footages can be mixed: 2' /4'
+
8' / 16'

Crumar trilogy

Synth DCO/ LFO / EG / FILTER

2 DCO oscillators

2 syncable DCO with fine tuning. It features Saw and square shape +  a mix of them. Also a white noise generator.  Special "ALTERNATE SAW/SQ" alternateve the two main shapes.

Envelope

a single envelope generator type ADSR (segments)

Filter

Low pass based on CEM 3320 with resonant filter and envelope potentiometer for polarity shift.

LFO

A single delayed modulator with variable depth and frequency (triangle or square)  Possibile destinations are: VCA / VCF / FM (vibrato). Slope is the LFO fade in amount.

Our Verdict 

Sound 
quality

Interface

Build
 quality

Rarity

Quality / 
price

Overall

CONS

- unrealiable
- limited sound
- now expensive (for CEM also)

PROS

-Vintage
- poly section

Are you a Trilogy user? do you like it? You do not agree with our review?  Let us know in the comment field just below 

DISQUS COMMENTS WILL BE SHOWN ONLY WHEN YOUR SITE IS ONLINE

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Crumar trilogy

Crumar's trilogy combines polyphomic synthesizer, orchestral strings and cathedral organ in one instrument, then lets you combine them in any proportion for limitless creative potentials.

Audio demo and video 

Crumar Trilogy Crumar Trilogy
70 out of 100 based on 1 user ratings
600 to 800 from 1 sellers Sellers: