Technical specifications: The Accelerator is a modern music instrument, which not only sounds great, but also doubles as a powerful "Performance-Controller" for your entire live setup.

Features summary

• 3 oscillators with sweepable waveforms, time linearity modulation, phasemodulation, ringmodulation between Oszillator 2+3, oscillator synchronisation and linear detuning
• 6 envelope generators, 4 LFOs (3 voice, 1part LFO)
• noise with dedicated noise filter (multimode filter - LP, HP, BP and Notch 12 / 24 dB) and independent amp & envelope
• 2 multimodefilter per voice - LP, HP, BP and Notch with 12/24 dB per filter switchable independent oscillator to filter feeds, flexible serial and parallel filter routing
• additional 3 band full parametric EQ per voice
• powerful modulationmatrix
• 4 powerful FX busses with modulation delay, chorus, phasing, reverb, leslie and distortion
• up to 8 programmable polyphonic arpeggiators
• up to 8 step sequencers with chord memories, 32 steps and three lines for parameter control. Realtime features like mute, skip, gate, transpose, direction and line length manipulation
• split, dual, single and performance mode with performance memories and selection chain programming
• acceleration sensor for parameter control
• 61 lightweighted keys with channel aftertouch
• 500 sound memories, 300 performance memories, 100 performance chain memories
• categorized sound selection
• categorized randomize sound function
• floating point processing for enhanced dynamic range
• 8 voices (up to 32 voices per DSP expansion)
• two part multimode (up to 8 part multimode with DSP expansion)
• monochrom graphic display with RGB backlight

8 voice polyphonic synthesizer

The Accelerator in its standard configuration sports 8 voices and two part multitimbrality. The polyphony can be increased to up to 32 voices via expansion modules. Each of the two expansions adds 12 voices. At least one expansion must be inserted to get 8 part multitimbrality.

Advanced synthesis engine

Phasemodulation in combination with sweepable waveforms, oscillator synchronisation, time linearity modulation and ringmodulation allows for a wide range of different spectrums. Furthermore, a delayline with a damped feeback loop (string filter) lets you explore virtual instument synth design like plucked string sounds, woodwind instruments and bowed string FXs. Three full parametric EQs per voice add realism to your sound creations and can help to place a new sound well in the mix. Two modulation matrixes, one with 32 nodes for voice parameters and a second with 8 nodes for part parameters, are very helpful for adding complex modulations and powerful realtime control over your timbres.

FX bus system

The Accelerator has 4 FX-Busses with incredible FXs. Each of the two Accelerator parts is fed into a separate bus. The remaining two busses are used for smooth transitions from one performance to the next. When switching from one layer or split sound to the next, the Accelerator selects the next two busses for the new sounds. The FXs of the former sound remain untouched without any glitches or interrupted reverbration release phases. Each FX-chain contains the following algorithms: distortion, stereo modulations-delay, phasing, leslie, chorus, reverb and a post FX EQ.

Step sequencer and programmable, polyphonic arpeggiator

A polyphonic step sequencer and a programmable polyphonic arpeggiator for each part - with independent or global transpose zones for the sequencers - gives the Accelerator its special music machine appeal. Another highlight for sure is the realtime access to the music parameters of the sequencer and arpeggiator motifs. In addition three sequencerlines can be assigned to synthesizer parameters in the modulation matrix.

Everything under control - the masterkeyboard features.

If you happen to play more than a single instrument on stage you will benefit from the masterkeyboard functionality the Accelerator offers. By pressing a single button in the song chain mode, all attached MIDI instruments receive bank and program changes, volume and panpot settitngs. Velocity and keyboard split zones let you play multiple instruments together with the accelerator sound engine from the keyboard. Zones can not only be assigned to the Accelerator keyboard. If you connect a second masterkeyboard or synthesizer to the Accelerator MIDI input, additional zones can be programmed to integrate your second keyboard completly into your setup.

Randomize sound - individual sounds on a fingertip

The randomize sound function of the Accelerator selects elements from different, already programmed sounds in memory and recombines them to new sounds. This algorithm creates thousands of variations of sounds. As soon as you hear a result that you would like to recall later, you can save the sound into the singlesound memory.

Song chain: fast access to performances, splits and single sounds

Organizing your favorite sounds and performances without changing the order of the sounds in the memory - that is the main benefit you get from chains. But chains can do more. Switching between different play modes, building new combinations and splits from single sounds and playing MID instruments without programming a complex masterkeyboard program - all this can be done in chains. Even cooler is the opportunity to use the chain memories for the organisation of your live gigs. Create a chain for each song of your setlist. During the gig one can select a song from the setlist in the display menu. For each song the Accelerator sports 10 direct access buttons that recall the programs preselected for the song. Additionally these programs can be organized in a row. The [NEXT]-button increments the position in the song row and recalls the sounds and performances more or less automatically. The button can also be controlled by a foot switch remote control.

Matter of course

• Voice remain - Select a new sound while holding a chord and play the new sound above the sustained chord. The new sound does not interrupt the held chord and even the FXs remain untouched.
• USB MIDI - The Accelerator appears as a MIDI interface in your computer as soon as you connect the ACC to the USB port. Not even a driver installation is necessary as the Accelerator works fine with the USB MIDI class device drivers.
• Galvanic isolated USB port - USB normally can cause groundloops in your setup if you connect a music instrument to a USB host. The Accelerator USB connector is galvanic isolated and prevents these problems.
• Balanced inputs for external instruments - Not only line signals can be fed into the external inputs. Connect dynamic microphones or an electric guitar directly to the balanced inputs of the Accelerator and use the FX bus system as a powerful external Multi FX unit.
• Memory organisation - 500 Single sounds, 300 performances, 100 song chains and 60 sequencer memories.

Voice expansions

The voice expansion modules increase the polyphony of the Accelerator. Each expansion adds 12 voices to the synthesis engine. Two expansions can be installed for a maximum of 32 voices. Additionally expansions increases the multitimbrality as well. Up to 8 parts are available as soon as at least one expansion has been installed. Each of these additional parts sport an independent arpeggiator and sequencer.

Software upgrades

Additional software packages allow for adding new synthesis algorithms. Already in betastage is a 61 voices drawbar organ module which will become available soon for Accelerators with at least one voice expansion installed.

Connections

• expression pedal input
• footswitch input
• galvanic isolated USB connector (USB MIDI class device)
• two external balanced inputs
• four analog outputs
• headphone output with a discrete headphone amp
• additional SPDIF-Output
• two DSP expansion slots
• MIDI In, Out, Thru
• power: 110-220V 50/60Hz

Weight and dimensions

• weight: 9 kg
• dimensions: 0.99m x 0.35m x 0.115m