Lexicon MPX G2, Service Manual

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Lexicon
3-1
Chapter 3 Spec i fications
I/O
Instrument input: mono 1/4 inch 1meg
Ω
unbalanced, with analog soft clipping circuit and front panel input level control
Levels: m2.2dBu for full scale, m10dBu max
A/D: 24-bit
Return Inputs: stereo, 1/4 inch, 50 κΩ unbalanced, with analog soft clipping circuit and ganged level control on rear panel
Levels: minimum –10dBu for full scale; m18dBu max (for +4 nominal inputs); +18 dBu with rear level pot at
minimum
A/D: 24-bit
Main L and R Outputs: 1/4 inch TRS balanced (2), XLR 3-wire balanced (2)
Nominal Level: front panel adjustable to +4dBu
Maximum Output Level: balanced: +18dBu into 60
0Ω;
unbalanced: +21dBu into 100
κΩ
D/A: 24-bit
Send Output: mono, 1/4 inch unbalanced
Nominal Level: software adjustable to +4dBu
Maximum Output Level: +18dBu into 100 κΩ
D/A: 24-bit
Audio performance
Frequency response: 20Hz to 20kHz;+1 to -1.5dB for input to send; +1 to -1.5dB for return to output
THD+N: <0.01%, at 1kHz nominal output level; <.01% at 1kHz insert returns to main output; .01% at 1kHz input to main
outputs
Dynamic Range: Instrument input to send:
-110dB (unweighted) minimum Input to Send with Relay Bypass on
-120dB (unweighted) Input to Send with Noise Gate on
-97dB (unweighted) typical instrument to main outputs in Bypass
Sample rate: 44.1kHz
Return Mix: When the Return Mix option is selected, MPX G2 will mix the analog Aux inputs with the post converter output
signal from the DSP.
Throughput delay without send/return loop: Input to Main Output <3ms, nominal
Internal Audio Data Paths
Conversion: 24-bit A/D, 24-bit D/A
DSP: 32 bits
Control Interface
MIDI: 7-pin DIN connector for MIDI IN/powered bi-directional remote 5-pin DIN connectors for MIDI THRU and OUT
Footswitch: 1/4 inch T/R/S phone jack for 3 independent footswitches
Foot pedal: 1/4 inch T/R/S phone jack (10 κΩ min, 100 κΩ max impedance)
Remote Power In: 2.5mm barrel for 9VAC remote power
General
Dimensions: 19.0"W x 1.75"H x 13"D (483 x 45 x 330mm); 19 inch rack mount standard, 1U high
Weight: Net: 7.2lbs (3.2kg); Shipping: 11lbs (4.98kg)
Power Requirements: 100-240VAC, 50-60Hz, 25W, 3-pin IEC power connector
Environment: Operating temperature: 32° to 104°F (0° to 40°C); Storage temperature: -20° to 170°F (-30° to 75°C); Humidity:
maximum 95% without condensation
Electrical Approvals
Safety Compliance: UL1419 and CSA 22.2 No. 1-94 (UL and C-UL marks); EN60065 (TUV-GS and CE marking per Directive
73/23/EEC)
EMC Compliance: FCC Class B; EN55022 Class B and EN50082-1; (CE marking per Directive 89/336/EEC)
Specifications subject to change without notice.