Our highly efficient and compact V15a+ is a constant current,dual output hearing loop driver, with integral phase shifterfor phased array configuration. The V15a+ is suitable forsmall and medium sized facilities and venues.It has Class-D amplifier output stages and an audiosub system built around an advanced DSP core. Combined with a powerful CPU to ensure peak performance, the V15a+ uses cutting edge technology proven in the pro audio world to achieve life-like speech and first-class music reproduction.
Features
• DSP controlled automatic gain control and high frequency compensation for metal loss
• 2 X 90° phase shifted (DSP controlled) Class-D amplifier output stages capable of delivering 5ARMS @ >15VRMS
• Selectable high pass filter (Off/150Hz/180Hz)
• Audio time delay
• Switchable AGC (On/Off)
• Enhanced loop diagnostics
• Simple user interface
• Backlit LCD display
• Sleep mode
• Continuous self-testing
• Integrated protection circuits with temperature, voltage, short circuit and DC detection
• Compact half-width 1U chassis (compatible 6U Rack Cabinet available upon request)
• On-screen alerts for loop faults
• High efficiency with true constant current output stage
Components
• V15a+ Hearing Loop Driver
• PS-60 Power Supply
Driver Area Coverage | Area | ||
1:1 | 1:2 | 1:3 | |
Phased array (no metal loss) | 625.00m² | 684.50m² | 705.33m² |
Phased array (medium metal loss) | 289.00m² | 288.00m² | 408.33m² |
All phased array loop areas calculated under the following conditions: Area at maximum driver current without voltage clipping at 1.6KHz * 3 metre seg- ment width * calculated with 25mm x 0.1mm flat copper tape * loop cable installed on floor * listening plane 1.2m * medium metal loss = 6dB
Applications
Suitable for small and medium sized
facilities, such as:
• Meeting rooms
• Classrooms
• Care & nursing rooms
• Waiting rooms
• Lecture halls
Voltage and Current
• >15VRMS @ 5ARMS
Accessories
• Single V-Series Mounting Bracket
[MBR-V1]
• Dual V-Series Mounting Shelf
[MBR-V2]
• Blanking Plate for Dual V-Series
Mounting Shelf [MBR-VBLANK]
• 6U Rack Cabinet [IL-AC-RACK-19]
Physical Data
Dimensions | Height – 42mm (1.65”) Width – 196mm (7.80”) Depth – 132mm (5.20”) [150mm (5.90”) incl. XLR and control dial] |
Weight | 978g (2.15lbs) |
Construction | Mild Steel |
Finish | Black Powder Coated |
Technical Data
Power Supply | 100W 24Vdc 4.17A via External PSU (PS-60) Class 6 External PSU (100V-240V AC 50Hz-60Hz) | |
Inputs | 1 X Balanced Line Level (3 Pin Euro-Block) or 1 X Balanced Line Level (XLR) [optimised for -10dBV to 0dBv] | |
1 X Mic Level (12V phantom power via 680Ω) [optimised for levels above -45dBv] | ||
1 X DC Input | ||
Outputs | 2 X Loop Output (5.08mm Euro-Block) | |
Loop Output Characteristics | Voltage | 15Vrms (42.3Vpk-pk) @ 5Arms (14.14Apk-pk)* |
Current | 5Arms (14.14Apk-pk) up to 300 seconds | |
Loop Connector | 5.08mm Euro-block | |
Audio System | Frequency Response | 80Hz to 9kHz |
Distortion | THD+N <0.3% (-50.5dB) Full current both outputs driven | |
AGC | Peak detecting | |
HF Comp | 7 optimised stages | |
Display & Controls | Display | LED Backlit LCD display |
Control | Single rotary control | |
Fault Monitoring and Protection | Main Display | Open circuit loop (DCR measurement) |
Loop ground fault | ||
Front Panel LED | Output voltage clipping | |
Cooling | Internal heatsinks with thermal protection | |
*Note 1: Z=3Ω (265.4uH + 1.37Ω @ 1.6KHz), Note 2: 1% (-40dB) distortion)
Rear Connections

Warranty:1 year
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