Whirlwind MultiSelector AMP 1 x 4 Amplifier Switcher

Whirlwind MultiSelector AMP 1 x 4 Amplifier Switcher

Whirlwind MultiSelector AMP 1 x 4 Amplifier Switcher

Whirlwind MultiSelector AMP 1 x 4 Amplifier Switcher

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Expected availability: 7-14 business days

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  • Made in the USA

This item is noncancelable and nonreturnable

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  • 1Description

The MultiSelector AMP 1 x 4 Amplifier Switcher from Whirlwind is a unidirectional 1-to-4 instrument amplifier switcher. This one-space rack unit has a single input that can be fed to up to 4 outputs simultaneously, with totally silent switching and complete ground isolation between amplifiers.

The input is electronically buffered with an input impedance of 1 MΩ, delivering pristine frequency response when used with instruments with passive pickups. The signal passes through the MultiSelector AMP Switcher transparently with no coloration. The digitally controlled optical switching is completely silent and routes the input to the 4 outputs, any combination of which can be selected at the same time.

All 4 outputs are buffered so you can have multiple amps selected at the same time without encountering ground loop hums and noise. Each output has a ground lift switch and a polarity reverse switch to optimize the sound when using multiple amplifiers. The rear panel contains a 1/4” input jack, 4 unbalanced 1/4” output jacks, and male XLR connector for connecting the remote footswitch (sold separately). The unit is AC powered for ultimate performance and no wall wart. The MultiSelector AMP Switcher is set for 120V operation.

Four momentary switches on the front panel turn the channels on and off, with each active output identified by a blue LED. All 4 outputs of the MultiSelector AMP can be switched on at the same time. A separate green LED indicates connection of the MLTSELAMPR Remote Foot Controller (sold separately).

Multiple amplifier switcher drives up to 4 amplifiers simultaneously
Single high impedance input provides sonic transparency
Each output is selected independently on the rack or optional remote
Totally silent optical switching
Transformer isolated outputs eliminate ground loops
Polarity switches compensate for wiring or acoustical phase differences
AC powered for ultimate performance
In the Box
Whirlwind MultiSelector AMP 1 x 4 Amplifier Switcher
  • Limited 2-Year Warranty on Parts & Labor
  • Table of Contents
    • 1Description
    Insertion Loss 0.05 dBV at 1 kHz
    0 dBV in
    Frequency Response Main Output: ±0.1 dBv, 50 to 16 kHz
    THD + N <0.001%, 200 to 20 kHz
    Phase Shift <5.5°, 50 to 10 kHz
    Noise All Grounds Lifted: <-100 dBV
    Attenuation Off Channel: >109 dBV
    Dynamic Range 117 dB
    Maximum Input/Output Level 19 dBV
    Input Impedance 1 MΩ
    Output Impedance 2 kΩ
    Power Consumption 11 W, 0.086 A at 120 VAC
    Voltage AC Dropout: 97 VAC
    Dimensions (W x H x D) 19.0 x 1.8 x 5.5" (482.6 x 44.5 x 139.7 mm)
    Weight 6.0 lb (2.7 kg)
    Packaging Info
    Package Weight 2.555 lb
    Box Dimensions (LxWxH) 22.0 x 9.5 x 5.0"
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