Audio Solutions
ProSplit
Transformer Isolated Mic Splitter

The ProSplit provides one direct output and one transformer isolated output from a single microphone. Applications include sending the direct output to the main or Front-of-House mixer, with the second isolated output being sent to a monitor or recording mixer. The direct output passes phantom power from the main mixer to the microphone for use with condenser microphones.

The ProSplit includes a ground-lift switch on the isolated output to reduce noise due to ground loops between connected equipment. For versatility the ProSplit also features an attenuator pad switch on the input that can be used to alternately connect a preamplified (line-level) signal to the two microphone-level ProSplit outputs.

Frequency Response 20Hz to 20kHz, ±0.25dB @ -15dBu -3dB@approx.165Hz
Total Harmonic Distortion <0.26% from 20Hz to 20kHz, -15dBu input
<0.1% from 45Hz to 20kHz, -15dBu input
0.002% Typical @ 1kHz, -15dBu input
Phase Shift <10 degrees @ 20kHz (Ref, 1kHz)
Input Impedance >1.1k Ohms @ 1kHz (Typical driving source impedance is 150 Ohm)
Ouput Impedance <255 Ohms @ 1kHz (Typical output load impedance is 1k Ohm)
Maximum Input Level -1.4dBu @ 20Hz/+3.5dBu
CMRR >105dB @ 60Hz / >80dB @ 3kHz
Insertion Loss Approximately 2dB @ 1kHz
Maximum Input Level For 1 PRC THD -1.4dBu @ 20Hz/+3.5dBu @ 30Hz / +9.4dBu @ 50Hz
Dimensions 1.85" H x 4.6" W x 3.5"D (47mm x 117mm x 89mm)
Weight 0.9 lbs (0.4 kg)
Notes All measurements made from the TRANSFORMER ISOLATED MICROPHONE OUTPUT with PAD SWITCH out (off) and 150 Ohm balanced source feeding MICROPHONE INPUT and 1k Ohm load connedcted to TRANSFORMER ISOLATED MICROPHONE OUTPUT to simulate a typical "real world" microphone and mic preamplifier. 0dBu = 0.775VRM
ProSplit - Transformer Isolated Mic Splitter
ProSplit - Transformer Isolated Mic Splitter
ProSplit - Transformer Isolated Mic Splitter