Applications
PO-XX with a PA system
Eliminating noise in a PA system can sometimes take hours of trouble shooting, particularly when the mixer, amplifiers and speakers are distanced apart. Simply connect the PO-XX at the output of your mixer to instantly eliminate ground loop buzz and hum.
Isolating one console from the other
Whether you are isolating two consoles in a festival or experiencing noise when connecting to a drive rack, the PO-XX is easily inserted into the signal chain to break the ground loop and eliminate noise as it easily handles huge bass transients without distortion.
Specifications
All levels are output unless noted
| PARAMETER | CONDITIONS | MINIMUM | TYPICAL | MAXIMUM |
|---|---|---|---|---|
| Input impedance, Zi | 20 Hz to 20 kHz, 0 dBu, test circuit 3, RL = 600 Ω | 670 Ω | 680 Ω | 690 Ω |
| Input impedance, Zi | 1 kHz, 0 dBu, test circuit 3, RL = 20 kΩ | |||
| Voltage gain | 1 kHz, 0 dBu, test circuit 1, Rs = 0 Ω | -1.2 dB | -1.1 dB | -0.9 dB |
| Magnitude response, ref 1 kHz | 20 Hz, 0 dBu, test circuit 1, Rs = 0 Ω | -0.1 dB | -0.02 dB | ±0.0 dB |
| Magnitude response, ref 1 kHz | 20 kHz, 0 dBu, test circuit 1, Rs = 0 Ω | -0.1 dB | ±0.0 dB | +0.1 dB |
| Deviation from linear phase (DLP) | 20 Hz to 20 kHz, 0 dBu, test circuit 1, Rs = 0 Ω | +0.3 / -0° | ±1.0° | |
| Distortion (THD) | 1 kHz, +4 dBu, test circuit 1, Rs = 0 Ω | <0.001% | ||
| Distortion (THD) | 20 Hz, +4 dBu, test circuit 1, Rs = 0 Ω | 0.004% | 0.03% | |
| Maximum output level | 20 Hz, 1% THD, test circuit 1, Rs = 0 Ω | +20 dBu | +22 dBu | |
| Common – mode rejection ratio (CMRR) | 60 Hz, test circuit 2 | 110 dB | ||
| Common – mode rejection ratio (CMRR) | 3 kHz, test circuit 2 | 75 dB | 85 dB | |
| Recommended source impedance | output impedance of device connected the ISO-MAX input | 0 | 600 Ω | 2 kΩ |
| Recommended load impedance | input impedance of device connected the ISO-MAX output | 150 Ω | 20 kΩ | ∞ |
| Output impedance, Zo | 20 Hz to 20 kHz, 0dBu, test circuit 4 | 80 Ω | ||
| Optimal cable length (balanced) | input | 50 m (150’) | 200 m (600’) | |
| Optimal cable length (balanced) | output | 100 m (300’) | 300 m (1000’) | |
| Optimal cable length (unbalanced) | input | 8 m (25’) | 15 m (50’) | |
| Optimal cable length (unbalanced) | output | 8 m (25’) | 15 m (50’) | |
| Temperature range | operation or storage | 0°C | 70°C | |
| Input to Output Voltage Difference* | any input to any output shield or any shield to case, 60 Hz | 24 V RMS 34 V peak |
Graphs
Phase Distortion
Frequency Response
THD vs Level at Low Frequencies
THD vs Frequency at Various Levels
