Module Row Width Depth +12V -12V +5V
13 Modules (0 passive)Row 1168 HPmax 60 mm1,834 mA +12V214 mA -12V0 mA +5V
24 Modules (2 passive)Row 2168 HPmax 60 mm431 mA +12V262 mA -12V0 mA +5V
20 Modules (2 passive)Row 3168 HPmax 100 mm1,039 mA +12V298 mA -12V0 mA +5V
21 Modules (4 passive)Row 4168 HPmax 75 mm615 mA +12V294 mA -12V0 mA +5V
78 Modules (8 passive)Total672 HPmax 100 mm3,919 mA +12V1,068 mA -12V0 mA +5V
Stoel Music Systems Mini Speaker Stoel Music Systems Mini Speaker
3" speaker with 4W amplifier
1  16 HP  36 mm  300 mA  0 mA  0 mA 
Doepfer A-147 VCLFO Doepfer A-147 VCLFO
Voltage Controlled LFO
1  8 HP  55 mm  40 mA  40 mA  0 mA 
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
1  8 HP  20 mm  20 mA  20 mA  0 mA 
Doepfer A-114 Doepfer A-114
Dual Ring Modulator
1  4 HP  40 mm  40 mA  40 mA  0 mA 
Stoel Music Systems Vacuum Tube Ring Mod Stoel Music Systems Vacuum Tube Ring Mod
A ring modular made with vacuum tubes and transformers
1  14 HP  49 mm  500 mA  7 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
1  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
1  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Buffered Multiple Stoel Music Systems Buffered Multiple
Specialized multiple to precisely distribute CV sources
1  4 HP  25 mm  14 mA  0 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
1  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Standard VCO Stoel Music Systems Standard VCO
VCO with FM, hard and soft sync, and SH-101 style sub oscillator
1  16 HP  25 mm  25 mA  20 mA  0 mA 
Stoel Music Systems Vacuum Tube Ring Mod Stoel Music Systems Vacuum Tube Ring Mod
A ring modular made with vacuum tubes and transformers
1  14 HP  49 mm  500 mA  7 mA  0 mA 
Doepfer A-128 Doepfer A-128
Fixed Filter Bank
1  20 HP  60 mm  20 mA  20 mA  0 mA 
Stoel Music Systems Mini Speaker Stoel Music Systems Mini Speaker
3" speaker with 4W amplifier
1  16 HP  36 mm  300 mA  0 mA  0 mA 
Doepfer A-141 (Discontinued) Doepfer A-141 (Discontinued)
Voltage Controlled Envelope Generator ADSR
2  14 HP  60 mm  30 mA  30 mA  0 mA 
Stoel Music Systems CV Source Stoel Music Systems CV Source
Dual CV source with coarse and fine controls
2  4 HP  21 mm  4 mA  5 mA  0 mA 
Stoel Music Systems Linear Mixer Stoel Music Systems Linear Mixer
Linear mixer for CV or audio signals
2  6 HP  21 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Log (Audio) Mixer Stoel Music Systems Log (Audio) Mixer
4 input/1 out mixer for audio signals
2  6 HP  21 mm  4 mA  4 mA  0 mA 
Doepfer A-189-1 Doepfer A-189-1
VC Bit Modifier
2  8 HP  60 mm  50 mA  20 mA  0 mA 
Stoel Music Systems Dual Multiple Stoel Music Systems Dual Multiple
Dual passive multiple
2  4 HP  20 mm  Module does not draw current
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
2  8 HP  20 mm  20 mA  20 mA  0 mA 
Stoel Music Systems Clock Divider Stoel Music Systems Clock Divider
Clock divider with six divisions and reset
2  4 HP  27 mm  26 mA  0 mA  0 mA 
Stoel Music Systems Clock Divider Stoel Music Systems Clock Divider
Clock divider with six divisions and reset
2  4 HP  27 mm  26 mA  0 mA  0 mA 
Stoel Music Systems CV Source Stoel Music Systems CV Source
Dual CV source with coarse and fine controls
2  4 HP  21 mm  4 mA  5 mA  0 mA 
Stoel Music Systems Dual Morphing LFO Stoel Music Systems Dual Morphing LFO
Two LFOs that modulate one another
2  14 HP  21 mm  40 mA  45 mA  0 mA 
Livewire Electronics Dual Bissell Generator Livewire Electronics Dual Bissell Generator
Dual Slew Limiter / Portamento
2  10 HP  50 mm  45 mA  ?  ? 
Stoel Music Systems Buffered Multiple Stoel Music Systems Buffered Multiple
Specialized multiple to precisely distribute CV sources
2  4 HP  25 mm  14 mA  0 mA  0 mA 
Stoel Music Systems Dual Ring Modulator Stoel Music Systems Dual Ring Modulator
Two ring mods with a dual mode ring/multiply feature
2  4 HP  21 mm  8 mA  10 mA  0 mA 
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
2  8 HP  20 mm  20 mA  20 mA  0 mA 
Stoel Music Systems Dual Morphing LFO Stoel Music Systems Dual Morphing LFO
Two LFOs that modulate one another
2  14 HP  21 mm  40 mA  45 mA  0 mA 
Stoel Music Systems Dual Multiple Stoel Music Systems Dual Multiple
Dual passive multiple
2  4 HP  20 mm  Module does not draw current
Doepfer A-106-1 Doepfer A-106-1
Xtreme Filter (MS-20 LP/HP)
2  14 HP  40 mm  30 mA  20 mA  0 mA 
Stoel Music Systems No-Knob Mixer Stoel Music Systems No-Knob Mixer
Eight input summing mixer without knobs
2  4 HP  26 mm  4 mA  4 mA  0 mA 
Stoel Music Systems ADSR Stoel Music Systems ADSR
Simple envelope generator with a manual trigger button
2  6 HP  21 mm  15 mA  11 mA  0 mA 
Stoel Music Systems Log (Audio) Mixer Stoel Music Systems Log (Audio) Mixer
4 input/1 out mixer for audio signals
2  6 HP  21 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Linear Mixer Stoel Music Systems Linear Mixer
Linear mixer for CV or audio signals
2  6 HP  21 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Spring Reverb Stoel Music Systems Spring Reverb
Spring reverb with external feedback loop
2  6 HP  33 mm  35 mA  7 mA  0 mA 
Stoel Music Systems Log (Audio) Mixer Stoel Music Systems Log (Audio) Mixer
4 input/1 out mixer for audio signals
2  6 HP  21 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Spring Reverb Stoel Music Systems Spring Reverb
Spring reverb with external feedback loop
3  6 HP  33 mm  35 mA  7 mA  0 mA 
Stoel Music Systems Dual Multiple Stoel Music Systems Dual Multiple
Dual passive multiple
3  4 HP  20 mm  Module does not draw current
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
3  8 HP  20 mm  20 mA  20 mA  0 mA 
Stoel Music Systems Vacuum Tube Ring Mod Stoel Music Systems Vacuum Tube Ring Mod
A ring modular made with vacuum tubes and transformers
3  14 HP  49 mm  500 mA  7 mA  0 mA 
Doepfer A-120 Doepfer A-120
24dB Low Pass (Transistor Ladder)
3  8 HP  50 mm  30 mA  20 mA  0 mA 
Stoel Music Systems No-Knob Mixer Stoel Music Systems No-Knob Mixer
Eight input summing mixer without knobs
3  4 HP  26 mm  4 mA  4 mA  0 mA 
Doepfer A-112 Doepfer A-112
Sampler / Wavetable Oscillator
3  10 HP  100 mm  50 mA  20 mA  0 mA 
Stoel Music Systems Buffered Multiple Stoel Music Systems Buffered Multiple
Specialized multiple to precisely distribute CV sources
3  4 HP  25 mm  14 mA  0 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
3  8 HP  26 mm  5 mA  5 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
3  8 HP  26 mm  5 mA  5 mA  0 mA 
Stoel Music Systems Discrete VCF Stoel Music Systems Discrete VCF
A multimode filter made with discrete transistors
3  8 HP  26 mm  5 mA  5 mA  0 mA 
Doepfer A-107 Doepfer A-107
Multitype Morphing Filter
3  26 HP  40 mm  200 mA  60 mA  0 mA 
Stoel Music Systems ADSR Stoel Music Systems ADSR
Simple envelope generator with a manual trigger button
3  6 HP  21 mm  15 mA  11 mA  0 mA 
Stoel Music Systems ADSR Stoel Music Systems ADSR
Simple envelope generator with a manual trigger button
3  6 HP  21 mm  15 mA  11 mA  0 mA 
Stoel Music Systems 2 HP Blank Panel, White Stoel Music Systems 2 HP Blank Panel, White
White blank front panel
3  2 HP  0 mm  Module does not draw current
Stoel Music Systems Clock Divider Stoel Music Systems Clock Divider
Clock divider with six divisions and reset
3  4 HP  27 mm  26 mA  0 mA  0 mA 
Doepfer A-106-6 Doepfer A-106-6
16-Fold Xpander VCF
3  12 HP  50 mm  35 mA  38 mA  0 mA 
Stoel Music Systems Dual Morphing LFO Stoel Music Systems Dual Morphing LFO
Two LFOs that modulate one another
3  14 HP  21 mm  40 mA  45 mA  0 mA 
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
3  8 HP  20 mm  20 mA  20 mA  0 mA 
Doepfer A-122 Doepfer A-122
24dB Low Pass II (Oberheim/CEM type)
3  8 HP  40 mm  20 mA  20 mA  0 mA 
Vermona qMI2 - Quad MIDI Interface Vermona qMI2 - Quad MIDI Interface
Quad Polyphonic MIDI to CV/Gate Interface
4  24 HP  30 mm  60 mA  2 mA  0 mA 
Stoel Music Systems Balanced XLR Out Stoel Music Systems Balanced XLR Out
XLR output with level control and LED meter
4  6 HP  28 mm  38 mA  6 mA  0 mA 
Stoel Music Systems Balanced XLR Out Stoel Music Systems Balanced XLR Out
XLR output with level control and LED meter
4  6 HP  28 mm  38 mA  6 mA  0 mA 
Stoel Music Systems Balanced XLR Out Stoel Music Systems Balanced XLR Out
XLR output with level control and LED meter
4  6 HP  28 mm  38 mA  6 mA  0 mA 
Stoel Music Systems Balanced XLR Out Stoel Music Systems Balanced XLR Out
XLR output with level control and LED meter
4  6 HP  28 mm  38 mA  6 mA  0 mA 
Stoel Music Systems Clock Divider Stoel Music Systems Clock Divider
Clock divider with six divisions and reset
4  4 HP  27 mm  26 mA  0 mA  0 mA 
Stoel Music Systems Headphone Amplifier Stoel Music Systems Headphone Amplifier
Stereo headphone amplifier with mono summing
4  6 HP  36 mm  85 mA  80 mA  0 mA 
Stoel Music Systems 8 HP Blank Panel, White Stoel Music Systems 8 HP Blank Panel, White
White blank front panel
4  8 HP  0 mm  Module does not draw current
Stoel Music Systems 2 HP Blank Panel, White Stoel Music Systems 2 HP Blank Panel, White
White blank front panel
4  2 HP  0 mm  Module does not draw current
Stoel Music Systems Dual Multiple Stoel Music Systems Dual Multiple
Dual passive multiple
4  4 HP  20 mm  Module does not draw current
Doepfer A-108 Doepfer A-108
48dB Low Pass
4  12 HP  75 mm  40 mA  40 mA  0 mA 
Stoel Music Systems No-Knob Mixer Stoel Music Systems No-Knob Mixer
Eight input summing mixer without knobs
4  4 HP  26 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
4  8 HP  20 mm  20 mA  20 mA  0 mA 
Stoel Music Systems Dual Morphing LFO Stoel Music Systems Dual Morphing LFO
Two LFOs that modulate one another
4  14 HP  21 mm  40 mA  45 mA  0 mA 
Stoel Music Systems CV Source Stoel Music Systems CV Source
Dual CV source with coarse and fine controls
4  4 HP  21 mm  4 mA  5 mA  0 mA 
Stoel Music Systems Dual Multiple Stoel Music Systems Dual Multiple
Dual passive multiple
4  4 HP  20 mm  Module does not draw current
Stoel Music Systems Clock Divider Stoel Music Systems Clock Divider
Clock divider with six divisions and reset
4  4 HP  27 mm  26 mA  0 mA  0 mA 
Stoel Music Systems Buffered Multiple Stoel Music Systems Buffered Multiple
Specialized multiple to precisely distribute CV sources
4  4 HP  25 mm  14 mA  0 mA  0 mA 
Stoel Music Systems No-Knob Mixer Stoel Music Systems No-Knob Mixer
Eight input summing mixer without knobs
4  4 HP  26 mm  4 mA  4 mA  0 mA 
Stoel Music Systems Dual Lin/Log VCA Stoel Music Systems Dual Lin/Log VCA
Two VCAs with selectable linear or log response
4  8 HP  20 mm  20 mA  20 mA  0 mA 
Doepfer A-188-2 Doepfer A-188-2
A-188-2 Tapped BBD Module
4  30 HP  70 mm  120 mA  50 mA  0 mA 

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