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MICROPHONES
OUTBOARD
SOFTWARE
MONITORS
INSTRUMENTS
Wired for instant access to classic tones without needing a single patch cable, the Pittsburgh Modular Synthesizer Box is a modern, complete semi-modular, monophonic synthesizer module. The Synthesizer Box is 100% analog and 100% Eurorack compatible with a complete set of patch points able to override the internal audio and CV signal paths. The Synthesizer Box was designed to be the core of any modular system. Each major component is fully patchable and can function independent to the rest of the module. This allows the functionality of the Waveforms Oscillator, Lopass Gate, LFO, Envelope Generator, and VCA to be broken apart and used like standalone modules.
WAVEFORMS (Complex Waveform Oscillator)
The Waveforms oscillator is the heart of the Synthesizer Box. Complex modulation, voltage controlled waveform morphing, and a sub oscillator allow for a deep tones and rich timbres.
Waveforms Controls: Coarse and Fine Tune Frequency Controls
Sub Oscillator - Square wave pitched one octave below the core oscillator creates a huge bottom end for the Synthesizer Box. Switch adjusts between low volume / off / full volume
Frequency Modulation (FM) - Used to modulate the pitch of the oscillator, The attenuated FM input can be switched between exponential and linear response. The FM input is internally patched to the LFO triangle output. This routing can be bypassed by patching into the FM CV IN input jack.
Saw / Blade Switch - Selects the type of saw wave sent to the mixer. The SAW wave is the core wave of the oscillator and is not effected by the MOD CV input. The BLADE wave is a unique, complex saw wave that can be modulated using the MOD CV input. Additional manipulation of the blade wave can be achieved using the BLADE IN jack.
Waveform Modulation (MOD CV) - Attenuated MOD CV input controls the amount of waveform modulation. Waveform modulation effects the square wave and blade wave. The modulation effects each wave type differently. Pulse width modulation of the square wave and wave shape morphing of the blade wave. The MOD CV input is internally patched to the LFO triangle output. This routing can be bypassed by patching into the MOD CV IN input jack.
The LPG is a distinctive module that incorporates both a low pass filter and VCA. The lopass gate is unique in the way that it simulates the characteristics of natural instruments. When used in LPG mode, additional harmonic content is added to louder sounds while quieter sounds pass through unmodified. This behavior imparts a rich, organic quality on the sounds.
LPG Controls: Frequency Modulation (MOD CV) - Attenuated MOD CV input controls the amount of lopass gate frequency modulation.
Mod / Ping Switch - Determines how the lopass gate responds to frequency modulation. In MOD mode, the MOD CV is used to sweep the frequency range of the lopass gate. In PING mode, the MOD CV is converted to a short trigger used to ping or strike the lopass gate. The PING mode takes advantage of the lopass gates fast attack and slow decay to create organic percussive sounds with a natural decay. The MOD CV input is internally patched to the envelope generator output. This routing can be bypassed by patching into the LPG CV IN input jack.
Frequency Control - In filter mode, the frequency knob controls the center frequency of the filter. In VCA mode, the frequency knob controls the pass through signal level. In lopass gate mode, the frequency knob controls both the center frequency of the filter and the pass through signal level.
Resonance Control - In filter mode, the resonance knob controls the amount of resonance. In VCA mode and lopass gate mode, the resonance knob is not active.
LPG Mode Switch - Switch between the 3 modes of the lopass gate. VCA position (up) enables VCA mode, LPG position (center) enables lopass gate mode, and LOPASS position (down) enables low pass filter mode.
LPG Patch Points: LPG CV IN - Frequency modulation input overrides internal routing to allow for external modulation. LPG IN - Signal input overrides internal routing. LFP OUT - Signal output.
Wide Range LFO is perfect for long sweeps or audio rate frequency modulation.
LFO Controls: Rate Knob - Selects the frequency of the low frequency oscillator.
Range Switch - Determines the range of the rate knob. Switches between low range and high range.
LFO Patch Points: TRI OUT - Triangle wave output. SQR OUT - Square wave output.
Four stage envelope generator.
Envelope Controls: Attack Knob - The first stage of the envelope generator. The attack knob adjusts the rise time of the envelope.
Decay Knob - The second stage of the envelope generator. The decay knob adjusts amount of time the envelope remains at the maximum level while the envelope input contains a signal.
Sustain Switch - The third stage of the envelope generator. The sustain knob sets the maximum output level of the envelope once the decay stage has completed.
Release Knob - The fourth stage of the envelope generator. The release knob adjusts the amount of time it takes for the envelope to turn off once the decay stage has completed.
Envelope Patch Points: ENV IN - Envelope input. ENV OUT - Envelope output.
Hardwired between the 1 Volt Per Octave Input (1V/O IN) and the waveforms oscillator.
Glide Controls: Time Knob - Adjusts the amount of time it takes to shift from one frequency to another.
Waveform mixer for oscillator outputs.
Mixer Controls: Triangle Wave Attenuator - Adjust the level of the triangle wave sent to the TRI OUT and MIX OUT.
Saw / Blade Wave Attenuator - Adjust the level of the saw / blade wave sent to the S/B OUT and MIX OUT.
Square Wave Attenuator - Adjust the level of the square wave sent to the SQR OUT and MIX OUT.
Mixer Patch Points: MIX OUT (in waveforms section) - Mixer output includes triangle, saw/blade, square, and sub oscillator waveforms.
High quality, linear voltage controlled amplifier.
VCA Controls: CV Input Attenuator Knob - Adjusts the output level of the VCA.
VCA Patch Points:
VCA CV IN - CV input. The VCA CV IN input is internally patched to the ENV OUT output. This routing can be bypassed by patching into the VCA CV IN input jack. VCA IN - VCA signal input The VCA IN input is internally patched to the LPG OUT output. This routing can be bypassed by patching into the VCA IN input jack. VCA OUT - Signal output.
Size: 28hp Module depth with ribbon cable attached: 36.5mm Power Usage: 120mA
8 Step Assignable Voltage Sequencer Suggested Retail Price - $149
The Sequencer module is a compact, simple 8 step analog sequencer. It uses an external clock to cycle through 4, 6, or 8 steps. The output of the sequencer can be used control the pitch of an oscillator, modulate a filter, or manipulate any module with a CV input.
Complex sequences can be created using a combination of the Reset, Hold, and Add inputs. The Reset input can be used to create odd or variable length loops while Hold pauses the movement of the sequencer. Voltage from the Add input is summed with the voltage created by the Sequencer transcribing the output.
The Sequencer module also makes a great sub-octave generator. Clocking the Sequencer at audio rates using the square wave of an Oscillator turns the Sequencer into a sub-octave waveform generator able to produce 1, 2, or 3 octaves below the frequency of the clock.
Variable Step Count of 4, 6, or 8 Steps Reset CV Input Hold CV Input Transpose CV Adder Input CV Range: 0-10v Dual Outputs
Module Controls
Assignable Voltage Knobs Sets the output voltage from 0-10v for each of the 8 sequencer stages.
Variable Step Count Switch (4 8 6) Sets the number of steps the Sequencer module cycles through. 4, 8, or 6 steps can be selected.
Clock Input (CLOCK) Clock source can be a square wave or gate signal.
Reset Input (RESET) Positive voltage resets the Sequencer to the first step.
Hold Input (HOLD) Positive voltage pauses the Sequencer.
Transpose Input (ADD) Control Voltage Adder. Adds voltage of incoming signal to the output of the Sequencer. A simple way to transpose the output of the sequencer.
Outputs (OUT) Dual buffered sequencer outputs.
Size: 14hp Depth: 25mm Power Usage: 30mA
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