New releases today: Studio Equipment

Notes: Designed to provide a powerful, flexible sampling engine for modular synthesis, the ASSIMIL8OR Multi-Timbral Phase Modulation Sampler module is the latest incarnation of Dave Rossum's decades-long pioneering of affordable professional sampling technology.

ASSIMIL8OR provides eight independent channels of sampling with sound quality that can range from extremely hi-fi to low fi, all with extensive real-time CV control.

Assimil8or Specifications

Sample memory
2,300 seconds at 48kHz mono, freely allocatable between the 8 channels

Sample rates
48kHZ, 96kHZ, 192kHZ

A/D & D/A
24 Bits

Internal processing
32 Bits

Latency
100 microseconds at the Mix Outputs
180 microseconds at the Individual Outputs

Inputs

Sample L/R
2x 3.5mm mono socket
100kO Input Impedance

Gate/Trigger 1-8
8x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Control Voltage A 1-8
8x 3.5mm mono socket
100kO Input Impedance
96 kHz sample rate
Anti-alias filtered to 20kHz bandwidth

Control Voltage B&C 1-8
16x 3.5mm mono socket
100kO Input Impedance
48 kHz sample rate
No anti-alias filtering

Outputs

Mix Outputs L/R
2x 3.5mm mono socket
1kO Impedance

Individual Outputs
8x 3.5mm mono socket
1kO Impedance

Power requirements: +/-12V via 16-pin, Doepfer-style connector
Current draw: 220mA +12V, 30mA -12V
Dimensions: 28HP (W); Panel to power connector (with connector plugged in) 25mm (D)

Supplied accessories:
1x Micro SD card
1x 16-pin, Doepfer-style cable
4x M3 screws
4x M2.5 screws
4x Nylon washers
1x Quickstart Guide

Notes: Following in the tradition of Evolution and Morpheus, LINNAEUS represents yet another Dave Rossum innovation in filter technology.

LINNAEUS is a stereo state variable filter that provides the unique ability to linearly modulate its resonant frequency through zero into negative frequency, while maintaining stability. With extensive voltage control of nearly every parameter, Linnaeus lets you manipulate the filter's natural response curve in new ways, to create both subtle and dramatic timbral effects. And with a "one-knob-per-parameter" interface, LINNAEUS inspires sonic creativity that invites (and rewards) real-time interaction.

LINNAEUS's cutoff/resonant frequency is exponentially voltage controllable from sub-audio to ultrasonic frequencies, while its resonant gain (Q) is exponentially voltage controllable from 0dB to greater than 60dB.

LINNAEUS's channel output response characteristics are independently and continuously variable from Lowpass, through Bandpass, Highpass and Notch, to Low and High Shelving characteristics. Voltage control of the response characteristics are independently selectable for each of the two channels.

The linear thru-zero modulation is provided by an integrated modulation oscillator and/or an External Linear FM modulation input.

The voltage-controllable modulation oscillator can track the filter's exponential frequency or operate independently. The modulation oscillator's output waveform is continuously variable from Off through Sine, Triangle, and Sawtooth, to Square. The modulation oscillator output is summed with the external linear FM input and applied to the modulation index VCA, which controls the linear thru-zero modulation index from zero to 8X. The modulation index is, of course, also voltage controllable.

LINNAEUS features include:

- Ultra-wide frequency range, exponentially voltage-controllable from sub-audio to ultrasonic via precise 1V/OCT and attenuverted CV inputs.

- Thru-zero linear frequency modulation via an internal modulation oscillator and/or an external linear FM input.

- Variable linear modulation index, voltage-controllable via an attenuverted CV input.

- Resonance (Q) exponentially voltage-controllable from 0dB to greater than 60dB via 6dB/V and attenuverted CV inputs.

- Continuously variable response characteristics independently selectable for each of the two channels via individual Response Enable controls. Characteristics include Lowpass (12db/oct and 6db/oct), Bandpass, Highpass (12db/oct and 6db/oct), Notch, and Low and High Shelving.

- Voltage control of response characteristics via an attenuverted CV input. Individual Response CV Enable controls let you independently enable or disable CV control of response for each channel.

- An integrated modulation oscillator with continuously variable waveform from Off through Sine, Triangle, Sawtooth and Square. Its frequency can be exponentially voltage controlled via an attenuverted CV input.

- A Track control that lets the modulation oscillator precisely track the filter's exponential frequency.

- Stereo inputs and outputs. LINNAEUS can process a stereo signal or two independent mono signals. While the two channels share the filter's cutoff/resonant frequency, the filter response characteristics can be independently controlled for each channel.

- The solid, high-quality construction you expect from Rossum Electro-Music.

What's with the egg?

The functional description above describes LINNAEUS as originally conceived and designed by Dave. However, late in the beta testing process, Rossum's tester, Chris Meyer, raised the possibility of alternative behavior that would let LINNAEUS function as a self-contained (i.e., no input required) stereo oscillator and/or FM percussion voice with some really powerful timbral capabilities.

While Rossum were initially hesitant to try to shoehorn the new functions into the existing interface, once Dave had prototyped them, it was clear to us all that they were just too cool not to include. So, Rossum have provided them in the form of alternate firmware accessed by pressing and holding the Egg button.

LINNAEUS is 16HP wide and 25mm deep.

Power requirements (max): 155mA +12V, 36mA -12V. Reverse polarity protected.

Notes: LOCUTUS is designed to interface Assimil8or with MIDI instruments, controllers, and sequencers to provide multichannel modulation and new polyphonic possibilities.

LOCUTUS includes a special attached cable to connect to the Assimil8or CPU behind the panel.

LOCUTUS is 6 HP wide and 25mm deep.

MIDI sources connected to LOCUTUS’ MIDI IN port can be used to modulate Assimil8or parameters using velocity, channel pressure, and MIDI CC (Continuous Controller) messages, select presets using MIDI Program Change (PC) messages, and/or optionally trigger Assimil8or channels with MIDI notes using user-selectable assignment modes. MIDI Setups can be configured with assignment modes including Dynamic, which intelligently cycles through Assimil8or’s channels to easily create polyphonic patches, Multi assignment modes ideal for playing multitimbral Assimil8or patches with MIDI sequencers, SP-1200 modes designed especially for triggering Assimil8or with SP-1200’s MIDI output, and more.

Locutus’ MIDI OUT port can be used to optionally transmit program messages when presets are changed and/or to send MIDI CC data based on the analog control voltages patched to Assimil8or’s 24 CV inputs. Using the new CV-to-MIDI options, Assimil8or and Locutus can be configured to control and modulate MIDI equipment using a eurorack modular system.

Notes: With the MORPHEUS digital filter module, Rossum are finally able to unleash the full power of the 14-pole Z0-Plane Filters that Dave invented for the E-mu Morpheus synthesizer.

The MORPHEUS Eurorack module includes over 280 filter configurations, which are called Cubes. Each Cube is composed of up to 8 complex filters that you can picture as being at the corners of a three dimensional cube (hence the name). Morpheus gives you the ability to smoothly interpolate between those 8 filters within the cube's three dimensional space.

Due to processor limitations back in the day, the original Morpheus was capable of real-time morphing in one dimension, but interpolation in the frequency and transform dimensions were set at note-on and remained static for the remainder of the note. But even with that limitation, Morpheus offered sonic capabilities that are unmatched to this day.

With the MORPHEUS filter module, you now have simultaneous real-time CV control of all three dimensions, for dynamic timbral effects unlike anything you've ever heard before. In stereo.

Like all Rossum Electro-Music digital modules, all parameters are available for adjustment with a single button press. No menu diving.

Morpheus Specifications

Filter cubes: 289
Filters: 1000
Filter sequences: 200
Sequence steps: 20,000 Dynamically Allocated

Inputs: Audio L/R
2x 3.5mm mono socket
100kO Input Impedance

Full Level Frequency CV
1x 3.5mm mono socket
100kO Input Impedance

Attenuverted Frequency CV
1x 3.5mm mono socket
100kO Input Impedance

Attenuverted Morph CV

1x 3.5mm mono socket
100kO Input Impedance

Attenuverted Transform/Distortion CV

1x 3.5mm mono socket
100kO Input Impedance

Filter Sequencer Dec

1x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Filter Sequencer Inc

1x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Filter Sequencer Reset

1x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Outputs

Audio L/R
2x 3.5mm mono socket
1kO Impedance

Power requirements
+/-12V via 16-pin, Doepfer-style connector

Current draw
135mA +12V, 25mA -12V (maximum)

Dimensions
18HP (W); Panel to power connector (with connector plugged in) 25mm (D)

Supplied accessories
1x 16-pin, Doepfer-style cable
4x M3 screws
4x M2.5 screws
4x Nylon washers
1x Quickstart Guide