KORG ARP 2600 FS Semi-Modular Synthesiser

Product Information More than a synthesizer, the ARP 2600 is a complete sound design studio. Even today, the ARP 2600 stands as a bridge between the individual elements of modular synthesis and the immediacy of a production / performance instrument. Included are an ample supply of oscillators, envelopes, a filter and amplifier – all of the building blocks of analog synthesis. But the ARP 2600 goes even further, with a spring reverb tank and even a pair of built in monitor speakers. Also present is much of the versatility of a vintage modular system, including a ring modulation, lag and voltage processors, an envelope follower, audio preamp, a clock-able switch, noise source, a sample & hold module, signal inverters, an auxiliary mixer, and even a set of parallel-wired/multi jacks. The ARP 2600 FS reproduces the sounds of these components at the circuit level. Under the supervision of David Friend, the co-founder of ARP Instruments, parts were carefully selected and every detail was adjusted to replicate the original unit's distinctive synthesis. Nearly every slider and switch on the ARP 2600 front panels is hard wired to specific control source. For example, the front panel controls allow the pitch of Oscillator 1 to be controlled by the keyboard (On/Off switch), the output of the Sample & Hold module (slider), the shape of the ADSR envelope generator (slider), and/or by the sine wave output of Oscillator 2 (slider), and each in varying amounts. These hardwired pathways provide massive amounts of immediate control that make excellent use of all the ARP 2600 has to offer, allowing the ARP 2600 to be played as is – no patching needed. In true modular fashion, inserting a patch cord into the jack associated with any hardwired control overrides that internal connection, letting you create a new signal path of your choosing. As a programming aid, the detailed panel graphics clearly show the available signal routings. Unlike earlier modular synthesizers that relied on bulky 6.3mm (1/4") jacks and patch cords, the ARP 2600 uses a more streamlined 3.5mm (1/8”) jack that allows for more patch points to occupy the same amount of panel space, delivering more options and more versatility. Most of the patch points are arranged in a single row below the controls of the individual sound modules. This arrangement keeps the main panel clear and unobstructed for tweaking the controls during performance. Needless to say, these patchable connections and the onboard processors can be used to interact with nearly any modular or Eurorack synthesizer system. While faithful to the original design, the functionality of the 3620 Keyboard has been greatly enhanced for this limited ARP 2600 release. The 3620 Keyboard contains 49 full-size keys, aftertouch, portamento, and is also duophonic, allowing two keys to be played at once – Single or Multiple Triggering is available. In addition, the duophonic keyboard can use an optional foot switch to lock the interval between any two notes, without retuning the oscillators during performance. Vibrato can be added via a dedicated circuit controlled by aftertouch, or by the onboard LFO (Low Frequency Oscillator), using any of three available waveforms. Most noticeable is the addition of a flexible Arpeggiator that allows a user-defined pattern to be manually sequenced and played back. Still present are the original Pitch Bend knob and the Two Octave Up / Two Octave Down Transpose switch. Connecting the keyboard to the main unit now uses a secure eight-pin din cable. The ARP 2600 reveals its modular nature by the unique assortment of valuable, esoteric, and individually patch-able modules it contains. To begin, there are a set of parallel-wired Multiple jacks that enhance the patching possibilities – allowing the same control signal to be sent to multiple locations, for example. Three independent Voltage Processors provide scalable control voltages, or can act to attenuate any control signal. Use the Lag Generator to delay the start of any control signal. The Noise Generator is tunable to deliver White, Pink, and Low-Frequency noise, plus everything in between. A series of three Inverters can reverse the polarity of any signal. The Electronic Switch can be sync’d to either the internal clock or any external clock signal, as can the Sample & Hold rate. Most importantly, the ARP 2600 includes a dedicated Preamp and Envelope Follower for processing an external audio signal. Specifications Operating temperature range 0 – +40 °C (non?condensing) Maximum Polyphony 2 voices for duo phonic; normally monophonic VCO-1 (Voltage Controlled Oscilator 1) Waveforms Sawtooth, square Frequency range Approx. 0.03 Hz – 30 Hz (low freq. mode)Approx. 10 Hz - 10 kHz (audio mode) Voltage controlled response 1V/oct. VCO-2 (Voltage Controlled Oscilator 2) Waveforms Sawtooth, pulse (dynamic pulse), triangle, sine Frequency range Approx. 0.03 Hz – 30 Hz (low freq. mode)Approx. 10 Hz - 10 kHz (audio mode) Pulse width 10% – 90% Voltage controlled response 1V/oct. VCO-3 (Voltage Controlled Oscilator 3) Waveforms Sawtooth, pulse (dynamic pulse) Frequency range Approx. 0.03 Hz - 30 Hz (low freq. mode)Approx. 10 Hz - 10 kHz (audio mode) Pulse width 10% – 90% Voltage controlled response 1V/oct. VCF (Voltage Controlled Filter) Type Low-pass (TYPE I : early 24 dB/oct., TYPE II: late 24 dB/oct.) Frequency range Approx. 10 Hz - 10 kHz Resonance 1/2 - self oscillate VCA (Voltage Controlled Amplifier) Control voltage AR type (internally connected)ADSR type (internally connected) Noise generator Noise spectrum types (white and pink) RING MODULATOR Type Analog multiplier Input signal (Internally connected) VCO-1 sawtooth wave, VCO-2 sine wave SAMPLE & HOLD Sampled signal Noise (internally connected) AUDIO OUTPUT JACKSFront Panel (LEFT, RIGHT OUTPUT jacks Connector ?3.5 mm monaural phone jack Maximum output level +9 dBu @ 10 k? load Output impedance 1.2 k? Side Panel R Connector XLR?? XLR connector Maximum output level +4 dBu @ 600? load Output impedance 1.2k? HEADPHONES JACK Connector ?6.3 mm stereo phone jack Maximum output level 50 mW + 50 mW @ 33? load Output impedance 20? EXTERNAL AUDIO INPUT (PREAMPLIFIER INPUT) JACK Connector ?3.5 mm monaural phone jack Maximum input level ?10 dBu Input impedance 100k? MIDI connector IN, OUT, THRU USB port Type B ARP 3620 (keyboard unit) Keyboard 49-note (with aftertouch, no velocity sensitivity) CV output voltage UPPER VOICE ?3V–+10V, 1V/oct. LOWER VOICE ?3V–+7V, 1V/oct. LFO output voltage TRIANGLE ±5 V, 10 Vp-p SQUARE WAVE +10 V, 10 Vp-p DELAYED SINE WAVE ±3 V, 6 Vp-p EXTERNAL VIBRATO input voltage Max. ±10 V VIBRATO DEPTH slider Max. 1 octave VIBRATO DELAY slider 0 – 2.5 sec LFO SPEED slider Approx. 0.25 – 25 Hz PITCH BEND control ±1 octave TRANSPOSE switch ±2 octave PORTAMENTO SPEED slider Maximum speed: about 0.25 msec/octMinimum speed: about 0.5 sec/oct PORTAMENTO foot switch KORG PS-1/PS-3 pedal switch INTERVAL foot switch KORG PS-1/PS-3 pedal switch GATE output voltage (on ARP 2600 FS panel) 0 V at all keys up, +10 V at key on TRIGGER output voltage (on ARP 2600 FS panel) +10 V, 0.5 ms pulse wave at key on Arpeggiator OFF, AUTO, UP, DOWN, UP&DOWN, RANDOM, SEQ PLAY General Power supply AC power supply terminal Power consumption 30W Dimensions (W × D × H), Weight ARP 2600 FS 836 x 232 x 509 mm / 32.9 x 9.13 x 20.0 inches, 19.3 kg / 42.55 lbs. ARP 3620 914 x 274 x 158 mm / 36.0 x 10.8 x 6.2 inches,11.3 kg / 24.91 lbs. Included Items Road case, Casters (x4), AC power cord, 8-pin DIN cable, 1,100 mm patch cables (x5), 600 mm patch cables (x5), Owner’s manual, Original English manual (replica) Accessories (Sold separately) KORG PS-1/PS-3 pedal switch