Product Description

The MPX 1 is the processor that fulfills the promise implied by the term, "multi-effects." Multiple Processor FX technology, combined with an interactive front panel, creates a new set of standards for others to follow... no less than you'd expect from Lexicon.

What To Expect...
No compromise stereo reverb in combination with as many as 4 additional stereo effects.

A "goof-proof" system for quickly fine-tuning any program, without having to enter an in-depth editing mode.

Visual feedback to tell you exactly where you are and what features are available; onboard Help guides you all the way.

56 Pitch, Chorus, EQ, Modulation, Delay, and world-class Reverb effects.

Complete flexibility of routing and effect order in every program.

200 preset programs designed for a wide variety of audio sources and applications - with database sorting to let you find exactly what you want.

Layered features; options are there when you need them, and out of the way when you don't.

Dynamic control of all effects parameters with pushbutton access to the patch system.

Extensive MIDI implementation.

Comprehensive audio connectivity.

Uncompromised Effects
The MPX 1 employs 2 separate DSP processors: the proprietary Lexichip, dedicated to delivering world-class stereo reverb and ambience algorithms, and a separate, fast-math DSP processor to create the other effects. This means that uncompromised Lexicon stereo reverberation and ambience effects are available all the time, whether you're running them alone, or in combination with any stereo pitch, chorus, EQ, delay, or modulation effect. Many "multi-effect" processors can't match even this basic requirement. The MPX 1 not only meets this standard expectation, but has processing power left over to run still more effects.

Instant Access
The 6 effect types in the MPX 1 are accessible at all times via dedicated, back-lit buttons on the front panel. Each effect "block" is totally independent, with its own mix, level, and bypass controls. The audio path through each effect is in stereo. An arsenal of exciting effects for each block (56 in total) is only a button push away, allowing you to easily select a new effect for any program.

Goof-Proof Program Fine-Tuning
The MPX 1 comes loaded with 200 carefully crafted presets that really show off the the MPX 1's versatility. Fine-tuning any preset to match it to your music or sound track is quick and easy with pushbutton access to a "soft row" designed to hold the most useful parameter combinations for each individual program.

When you want to completely restructure a program, or create a new one from scratch, an Edit mode lets you dive as deeply as you want into an extensive pool of effect and program parameters.

Onboard Help
A multi-level Help system built into the MPX 1 provides guidance through any front panel operation. At any time, simply press and hold any button to display a message explaining the function of the button without executing any action. This feature lets you look around and figure out most functions without ever having to open the user's manual.

In addition to press and hold Help, the MPX 1 has an optional Sleep mode help function which you can turn on for automatic display of useful messages when the system is idle.

Interactive Front Panel
The MPX 1 front panel speaks for itself

Technical Description

Analog Audio Input: XLR and 1/4 in. balanced (T/R/S)
Input Level: -2dBu to +20dBu, balanced; -14dBu to +8dBu, unbalanced
Input Impedance: 100k, balanced; 50k, unbalanced

Analog Audio Output: XLR and 1/4 in. balanced (T/R/S)
Output Level: +18dBu
Output Impedance: 600unbalanced

Digital Audio Input: Coaxial RCA
Format: 24-bit S/PDIF
Sample Rate: 44.1kHz

Digital Audio Output: Coaxial RCA
Format: 24-bit S/PDIF
Sample Rate: 44.1kHz

Conversion: 18-bit A/D; 20-bit D/A
Internal Audio DSP: 20-bit; 32-bit

Frequency Response: 20Hz - 20kHz +/-1dB
Crosstalk: -60dB
THD: 0.01%, 20Hz - 20kHz

Dynamic Range:
D/A: >95dB typical, 20Hz - 20kHz, unweighted
A/D: >90dB typical, 20Hz - 20kHz, unweighted
A/A: >95dB typical, 20Hz - 20kHz, unweighted

MIDI Interface: 7-pin DIN connector for MIDI IN and powered bidirectional remote; 5-pin DIN connectors for MIDI THRU and OUT

Footswitch: 1/4 in. T/R/S connector for bypass and tap
Footpedal: 1/4 in. T/R/S connector (10k- 100kimpedance)

Power Requirements: 100 - 240 volts AC, 50 - 60Hz, 25 watts (3-pin IEC connector)
Remote Power In: 2.5 mm 9 volts AC (not included)

Dimensions (W x H x D): 19 x 1.75 x 9 in. (483 x 45 x 289 mm), 1U rack mount standard

Weight: 6.125 lbs. (2.8 kg)

Operating Temperature: 32

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