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ARP | Quartet |
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Description | The ARP Quartet is identical to the Italian made Siel Orchestra. In fact, it is the Orchestra! ARP bought, relabeled and sold it as the Quartet without changing it much. This version replaced the Reed section with an Organ one. It's a 4-part orchestral synthesizer with 4 sections: Brass, Strings, Organ and Piano. These 4 tone color families can be played individually or two can be simultaneously played. They are also individually tweakable. Selected presets will light up LEDs to show you which sliders and buttons can be used to modify the current section. The synth itself is very limited however, and there's no external control, no pitch/mod wheel and few edit parameters. But it sounds very good and it is, after all, a classic analog synth. The Brass section creates Trumpet and Trombone sounds with independent attack and sustain controls. The String section creates Cello and Violin sounds with independent attack and sustain controls. The Organ section is 2-voice and has a Celeste sound available as well. The Piano section offers two types, traditional or Honky Tonk. |
| Brand | ARP |
| Model | Quartet |
| Device | Synth |
| Type | Keys |
| Engine Type | Analog |
| Engine | VCO Preset |
| Voices (max) | 49 |
| Oscillators | Max 2 of 4 |
| LFO | One variable speed LFO with Sine wave shape |
| Engine Detailed | Brass, Strings, Organ and Piano |
| Filter (VCF) | Four-pole resonant 24dB lowpass filter |
| Envelope (VCA) | Attack and Sustain for Brass and String sections |
| Keys | 49 |
| Key type | Keys |
| Velocity | No |
| Aftertouch | No |
| Extra info | Design by Siel |
| Produced: | 1979 - 1980 |
| Legend: | Obvious | Y: Yes, N: No, N/A: Not Applicable | |
| VCO | Voltage Controlled Oscillator | DCO | Digital Controlled Oscillator |
| LFO | Low Frequency Oscillator | Sub | Sub Oscillator |
| VCF | Voltage Controlled Filter | VCA | Voltage Controlled Amplifier |
| Velocity | As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. | Aftertouch | Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel. |
| Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise. | |||
