Specifications; Sound Engine; Audio Input; Audio Output - Alesis Ion Reference Manual

Specifications

Sound Engine

Sound Engine
Sound Generation: Sound Generation:
Polyphonic Voices: Polyphonic Voices:
Program Memory: Program Memory:
Effects: Effects:

Audio Input

Audio Input
Input Connectors: Input Connectors:
Maximum Input Level: Maximum Input Level:
Input Impedance: Input Impedance:

Audio Output

Audio Output
Output Connectors: Output Connectors:
Maximum Output Level: Maximum Output Level:
Output Impedance: Output Impedance:

Audio Performance

Audio Performance
Signal To Noise Ratio: Signal To Noise Ratio:
THD+N: THD+N:
Frequency Response: Frequency Response:
Power Consumption: Power Consumption:

Physical

Physical
Keyboard: Keyboard:
Real-Time Controllers: Real-Time Controllers:
Pedal Jacks: Pedal Jacks:
MIDI Connections: MIDI Connections:
Audio Outputs: Audio Outputs:
Dimensions (WxHxD): Dimensions (WxHxD):
Weight: Weight:
Alesis proprietary DSP Analog Alesis proprietary DSP Analog
Modeling Modeling
8, each with 3 oscillators, 2 multi-mode 8, each with 3 oscillators, 2 multi-mode
filters, 3 envelope generators, 2 LFOs, filters, 3 envelope generators, 2 LFOs,
programmable effects send and programmable effects send and
modulation matrix. modulation matrix.
512 Preset Programs, 32 Multi-timbral 512 Preset Programs, 32 Multi-timbral
Setups, all user-rewritable Setups, all user-rewritable
4 Drive Effects (1 each per Part) plus 4 Drive Effects (1 each per Part) plus
Master Effects (Shared) Master Effects (Shared)
2 Balanced 1/4" TRS jacks 2 Balanced 1/4" TRS jacks
+5.2dBu (1.41VRMS) = -0dBFS +5.2dBu (1.41VRMS) = -0dBFS
10kΩ 10kΩ
4 Impedance-Balanced 1/4" TRS 4 Impedance-Balanced 1/4" TRS
jacks, ¼" TRS Headphone Jack jacks, ¼" TRS Headphone Jack
+18dBu (6.17 VRMS) = -0dBFS +18dBu (6.17 VRMS) = -0dBFS
1kΩ 1kΩ
>95 dB A-weighted, Ext In to >95 dB A-weighted, Ext In to
Main or Aux Out Main or Aux Out
< 0.005%, External In to < 0.005%, External In to
Main or Aux Out Main or Aux Out
20-20kHz ± 0.20dB, External In to 20-20kHz ± 0.20dB, External In to
Main or Aux Out Main or Aux Out
12 Watts max (100-240VAC/50- 12 Watts max (100-240VAC/50-
60Hz) 60Hz)
49 keys (velocity, release velocity 49 keys (velocity, release velocity
sensitive) sensitive)
30 360-degree Parameter Knobs, 2 30 360-degree Parameter Knobs, 2
Assignable Modulation Wheels, Assignable Modulation Wheels,
Assignable Pitch Wheel, Assignable Pitch Wheel,
Assignable Exp pedal jack, Sustain Assignable Exp pedal jack, Sustain
pedal jack pedal jack
MIDI In, MIDI Out, MIDI Thru MIDI In, MIDI Out, MIDI Thru
Main L/R , Aux L/R, Headphone Main L/R , Aux L/R, Headphone
(1/4" TRS) (1/4" TRS)
33.0" x 3.75" x 13.0" / 838.20 x 95.25 33.0" x 3.75" x 13.0" / 838.20 x 95.25
x 330.20mm x 330.20mm
20 lbs / 9 kg 20 lbs / 9 kg
All measurements done over a 20Hz – 20kHz
range with a 1kHz sine wave at -1dBFS
input. Impedances are measured at 1kHz.
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