The ALI20/25 are audio line isolators designed to isolate audio devices from each other. In most cases, they are used to avoid hum caused by ground loops in audio systems. They offer a complete passive solution for the isolation of a stereo balanced audio signal. It features dual XLR in- and output connectors and a ground lift switch. The in- and output phase are matching. The ALI20/25 are both built with an audio transformer that has a turns ratio of 1:1 and an impedance of 600 Ohm. The difference is the shielding of the transformer. The ALI20 contains a shielded transformer which complies with the requirements of most standard applications, while the ALI25 contains a MU-metal shielded transformer which can be used when regular shielding becomes inadequate. This ensures the best results in even the highest EMI polluted environments.
VARIANTS
- ALI20 – shielded
- ALI25 – super shielded
| SYSTEM SPECIFICATIONS | ||||
|---|---|---|---|---|
| Inputs | Impedance | 600 Ω | ||
| Connector | 2 x XLR female | |||
| Outputs | Impedance | 600 Ω | ||
| Connector | 2 x XLR male | |||
| Turn ratio | 1 : 1 | |||
| Bandwidth | 0.8 Hz – 100 kHz | |||
| Typical distortion (@ 1 kHz) | 0.001% | |||
| Frequency | High | -3 dB Cutoff 105 kHz | ||
| Low | -3 dB Cutoff 0.8 Hz | |||
| Response | 20 Hz | -0.09 dB (reference 1 kHz) | ||
| 20 kHz | -0.10 dB (reference 1 kHz) | |||
| Max. Inputs Level (@ 1% THD+N) | 20 Hz | +2 dBu (0.975V) | ||
| 50 Hz | +10 dBu (2.449V) | |||
| THD+N (@ 1 kHz) | 0.035% (@ 20 Hz and -20dBu (typical)) | |||
| < 0.001% (@ 1 kHz and -20dBu (typical)) | ||||
| PRODUCT FEATURES | ||||
|---|---|---|---|---|
| Dimensions | 96 x 43 x 108 mm (W x H x D) | |||
| Weight | 0.270 kg | |||
| Construction | Aluminium | |||
| Colours | Black | |||
INFORMATION SHEETS
CERTIFICATES
ACCESSORIES & RELATED PRODUCTS