RS-505

Roland RS-505

Released: 1978

MSRP: ?

Synopsis:

"Paraphonic" string synth, including monophonic synth and bass sections Architecture Class: Conventional (subtractive).

Ebay Description:

The Roland RS-505 is a 49 key, analog ensemble synthesizer, featuring auto-bend, vibrato, fully polyphonic string and synth sections, along with monophonic bass section. The synth section features a resonant low-pass filter with ADSR envelope, while the string and bass sections have AR envelopes.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
49 keys	W:905mm (35.6in) D:30mm (14.6in) H:145mm (5.7in)	14kg (31lbs)	chorus	stereo synth/bass	no	pedal	gate:15V trigger:15V(2ms)	pitch sustain	12W AC

Interface

Compatibility	Multitimbral Memory	Program Memory	External Storage	External Programming	UI Input	UI Output
-	N/A	no	no	no	buttons/sliders	LED

Architecture

Multitimbral	Polyphony	Unison	Architecture
3 (synth/string upper and lower regions split at C3)	String/Synth:full (via octave divider) Bass:1	no	VCO->VCA->VCF->VCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
chorus	no	StringEG SynthEG VolEG	yes

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
no	N/A	no	N/A	N/A	pitch-shift	no

Keyboard

Key Pressure	Chord Memory	External Control	External Sustain	Key Scaling	Velocity Curves
no	no	no	pedal	no	no

Source

Name	Signal Class	Waveform	Octave Range	Amplitude Modulator	Harmonics Modulator	Pitch Modulator	Wave Assign Modulator
Synth	analog	?	upper:4-8' lower:4-8' bass:8-16'	no	no	auto-bend LFO	no
String	analog	saw?	mix:4-8'	no	no	auto-bend LFO	no
Bass	analog	saw?	mix:8-16'	no	no	auto-bend LFO	no

Filter

Name	Signal Class	IC	Resonant	Shape	Frequency Modulator	Resonance Modulator	Shape Modulator
Bass	analog	?	no	?	BassEG	no	no
Synth	analog	?	yes	low pass	SynthEG LFO pedal	no	no

Envelope

Name	Level	Rate	Loop	Polarity	Trigger	Level Modulator	Rate Modulator
StringEG	-	attack	no	no	no	no	no
BassEG	-	attack release	no	no	no	no	no
VolEG	-	release	no	no	no	no	no
SynthEG	sustain	attack decay release	no	no	no	no	no

LFO

Name	Waveform	Delay	Polarity	Sync	Delay Modulator	Level Modulator	Rate Modulator
LFO	triangle?	yes	no	no	no	no	no

Conventional Models

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