Rated 4.9 (120 reviews)
The Ampetronic CLS1 is a wall-mounted hearing loop driver for areas up to around 200 m², with three inputs and all wiring and controls behind a tamper-resistant hinged cover. It accepts a microphone, line-level audio and a 100V line or speaker feed, so it can take audio from an existing PA. Typical uses are meeting rooms, classrooms, community centres, churches and interview rooms.
>200 m²
Area coverage
3.3 A RMS
Loop current
3
Inputs
5 years
Warranty
Hard-wired mainsMains connects to a screw terminal block on the chassis, not an IEC lead, so plan for fixed wiring by a qualified electrician.
Features
Wall-mount driver for loop areas over 200 m²
Three independent inputs: balanced mic/line, line with expansion port, and isolated 100V line or speaker
Connections and controls behind a hinged, detachable tamper-resistant cover
Speech optimised automatic gain control
Metal loss correction, 0 to 3 dB per octave
Natural convection cooling, no fan
5 year Ampetronic warranty
Specifications
| Loop output current | >3.3 A RMS (5.0 A peak) continuous, 1 kHz sine; short-term peaks >5 A RMS |
| Drive voltage | >6.4V RMS (9.0V peak) |
| Loop impedance | 0.2 ohm minimum resistance, 1.5 ohm maximum impedance |
| Input 1 | Balanced mic or balanced/unbalanced line, +12V phantom (mic only) |
| Input 2 | Balanced or unbalanced line, expansion port |
| Input 3 | Isolated 100V line or low impedance mono/stereo speaker |
| Mic sensitivity | -73 dBu min, -37 dBu max |
| Frequency response | 80 Hz to 6.3 kHz (±3 dB) |
| Automatic gain control | Speech optimised, dynamic range >36 dB |
| Metal loss correction | 0 to 3 dB per octave, 1 kHz constant |
| Mains supply | 230V, 30W, 45 to 65 Hz, screw terminal connection |
| Dimensions (W x H x D) | 200 x 200 x 44 mm |
| Weight | 1.8 kg |
| Mounting | Wall, 4 screws |
| Environment | IP20, -10 to 40°C |
