|The OR-400 from Siel was another run of the Orchestra models with a 49 key keyboard and all preset machine of piano, organ, brass, and, reed instruments.The instrument features 32 sliders and 8 buttons for controlling the sounds. The instrument is a preset machine however with the sliders the player can edit all 4 sounds with filtering and modulation. All edits are temporary and either need to be written down or memorized by the user.
|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|
||Y: Yes, N: No, N/A: Not Applicable
||Voltage Controlled Oscillator
||Digital Controlled Oscillator
||Low Frequency Oscillator
||Voltage Controlled Filter
||Voltage Controlled Amplifier
||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.
||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.