The 104B is a distribution amplifier that takes one microphone input via an XLR connector and distributes the balanced mono signal to four identical outputs through additional XLR connectors. It allows the user to select between condenser or dynamic microphones, provides 48V phantom power, and includes a master level control. The unit is compact and can be rack mounted with an optional adapter.

1. 104B
1:4 Microphone Distribution Amplifier
The 104B is a high-quality
distribution amplifier for
balanced mono microphone
signals on XLR connectors. It
takes one microphone input
and distributes the signal to
four identical outputs.

2. 104B
FEATURES TECHNICAL SPECIFICATIONS
Mic Input Selector - Condenser or dynamic. INPUT: 1 balanced mono microphone
Phantom Power - 48V DC. on an XLR (F) connector.
S/N Ratio - 86dB. OUTPUTS: 4 balanced mono microphone
Master Level (Gain) Control. on XLR (M) connectors.
Compact MultiTOOLS® - 4 units can be rack MAX. OUTPUT 5.5Vpp.
mounted side-by-side in a 1U rack space with LEVEL:
the optional RK-1 universal rack adapter. BANDWIDTH (- >100kHz.
3dB):
S/N RATIO: 86dB.
CONTROLS: –3.2dB to +6.7dB level.
COUPLING: Input, AC; output, DC.
AUDIO THD + 0.13%.
NOISE:
AUDIO 2nd 0.005%.
HARMONIC:
POWER SOURCE: 12V DC, 193mA.
DIMENSIONS: 10.7cm x 16.2cm x 4.36cm
(4.2" x 6.36" x 1.72") W, D, H.
WEIGHT: 0.15kg (0.33lbs) approx.
ACCESSORIES: Power supply.
OPTIONS: RK-1 19" rack adapter.