W5-2 Wall mount MultiLoop hearing loop driver
W5-2 Wall mount MultiLoop hearing loop driver
The W5-2 is designed particularly for small rooms where there is no AV rack and no network monitoring requirements, but can still make use of Ampetronic’s industry leading spill control design.
The W5-2 is designed particularly for small rooms where there is no AV rack and no network monitoring requirements, but can still make use of Ampetronic’s industry leading spill control design.
Design templates for low spill in especially small rooms are available to download from the Loopworks portal here. These are optimised specifically for the W5-2, including two turn options with twin core flat copper tape for higher loss environments.
Features
- Input 1 & 2 – 3 way 3.5mm euroblock screw terminal input
- Balanced mic/line selectable
- 100V line input – 2 way 5mm euroblock screw terminal
- Phantom Power – 24V (switchable on both channels)
- Loop Output Drive Current – W5-2 – 5A RMS per channel
- Loop Output Connectors – 2 way 5mm euroblock screw terminal per channel
- Built-in Test Tones (1KHz sine, Pink noise)
- Phase shift – 90° (always on)
- Metal Loss Correction – 0 to 3dB per octave frequency correction (1KHz remains constant)
- Three stage inductance compensation – to correct frequency response with different loop lengths
- DC Out – 24V DC
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INPUTS & SIGNAL PROCESSING |
MIC |
Line |
UNITS |
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Input figures quoted at maximum front panel gain control setting. |
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INPUT 1 & 2: (mic/Line) 3 way, 3.5mm phoenix, balanced, suitable for up to 600Ohm microphones or line level.
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Input impedance |
8,700 |
8,700 |
Ω |
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Sensitivity |
-69 |
-45 |
dBu |
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Overload |
-33 |
-9 |
dBu |
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100V: Isolated 100V line input |
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Input impedance |
120,000 |
Ω |
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Sensitivity |
+11 |
dBu |
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Overload |
+47 |
dBu |
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AGC: Compression of signal indicated by green INPUT LED when active and RED when overloaded. |
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Input range |
>36 |
dB |
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Output range |
±1 |
dB |
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Min. input level for AGC |
See sensitivity |
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Attack time |
3.5 |
ms |
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Decay time |
1.4 |
s |
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METAL LOSS CORRECTION: Specially designed adjustable filter to compensate for the effects of metal loss. Gain @ 1kHz remains constant. |
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Min. slope |
0 |
dB/oct. |
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Max. slope |
+3 |
dB/oct. |
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LOOP IND: High shelf filter options to compensate for the effect of loop inductance on the class D output stage |
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Low |
No effect |
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Med |
3dB max starting from ~1kHz |
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High |
4.8dB max starting from ~1kHz |
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Test Signals: Internally generated signals for commissioning which when activated interrupt the input audio signal. |
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Off |
Audio signal passed |
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Field |
Single 1k tone |
Hz |
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Freq |
Combined 100, 1k & 5k sine tones |
Hz |
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DC Power |
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Power figures for reference only. With unit set for maximum output with the input in AGC. Only use the provided DC power supply. |
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Voltage |
24 |
V |
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Current idle |
0.28 |
A |
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Current pink noise |
1.3 |
A |
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Current sine |
3.2 |
A |
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OUTPUTS |
UNITS |
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LOOP OUTPUT: 2x 2way, 5mm, phoenix. |
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Voltage |
7.8 |
VRMS |
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Current |
5 |
ARMS |
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Continuous pink noise |
2.5 |
ARMS |
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THD +N (1kHz, sine, max output) |
0.5 |
% |
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Maximum loop resistance |
0.6 (at maximum current) |
Ω |
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Frequency response |
±3dB, 100 to 5000Hz |
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DC OUT: 2 way, 3.5mm, Phoenix. Fuse protected output for ancillary devices. |
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Voltage |
24 |
V |
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Current |
0.1 |
A |
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Status:2 way, 5mm, Phoenix. Volt free relay contacts indicating fault condition when open. |
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Contact rating (resistive load) |
12A, 125Vac |
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10A, 250Vac |
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10A, 30Vdc |
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PROTECTION FEATURES |
UNITS |
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Thermal Protection: If the PA amplifier reaches a pre-determined level the |
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output current will be gradually attenuated followed by shutdown. |
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Output attenuation |
Max -4dB @ 90 |
°C |
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Unit shutdown (Requires power cycle to recover) |
PA chip junction temp>155 °C |
°C |
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DC input over-current |
Output attenuation |
Max 4dB >5A dc input |
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Output over-current |
Unit shutdown (Requires power cycle to recover) |
>10A loop current |
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PHYSICAL CHARACTERISTICS |
UNITS |
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Dimensions: Width |
270 |
mm |
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Height |
152 |
mm |
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Depth |
42 |
mm |
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Weight |
1.1 |
kg |
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Operating temperature |
-10 to 40 |
°C |
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Ingress protection rating |
30 |
IP |