Currently not in stock: Please contact our sales team for product availability and lead times. Thanks to our strong supplier relationships our lead times are some of the quickest in the industry, giving us full confidence that we can still fulfil your requirements on back-order quicker than any competitor.
1 unit in stock: We currently have 1 unit in stock.
2 units in stock: We currently have 2 units in stock.
3 units in stock: We currently have 3 units in stock.
4 units in stock: We currently have 4 units in stock.
5 units in stock: We currently have 5 units in stock.
6 units in stock: We currently have 6 units in stock.
7 units in stock: We currently have 7 units in stock.
8 units in stock: We currently have 8 units in stock.
9 units in stock: We currently have 9 units in stock.
10 units in stock: We currently have 10 units in stock.
11-20 units in stock: We currently have between 11-20 units in stock.
21-30 units in stock: We currently have between 21-30 units in stock.
31-40 units in stock: We currently have between 31-40 units in stock.
41-50 units in stock: We currently have between 41-50 units in stock.
51-75 units in stock: We currently have between 51-75 units in stock.
76-100 units in stock: We currently have between 76 and 100 units in stock.
101+ units in stock: We currently have at least 101 units in stock.
201+ units in stock: We currently have at least 201 units in stock.
301+ units in stock: We currently have at least 301 units in stock.
401+ units in stock: We currently have at least 401 units in stock.
501+ units in stock: We currently have at least 501 units in stock.
...
If you place your order and we've not got a product in stock, a member of the sales team will contact you with our supplier lead times or to find an alternative.
Please call the sales team on 01525 850085 or email sales@leisuretec.co.uk if you have any questions.
Wireless Microphone Systems
We do our best to keep healthy stocks across the many Wireless Microphone System SKUs but in the rare case where we don't have your required system in stock, please contact our sales team as we can often make your product to order by borrowing the system components (transmitters, receivers or mics) from other stocked systems.
Shopping Basket
The product has been added to your basket
Main Features
4 channels
300 Watts total output
Flexible output channel design supporting 100 V, 70 V, 8 ohm or 4 ohm per channel
Each channel can drive up to 150 watts (twice the symmetric power)
Default 4 dBu input sensitivity no matter what load means that it is easy to drive with any source
Includes Tesira processing blocks for applicable Biamp loudspeakers
Voltera A 300.4 Compact Power Amplifier 4x75W Half-Rack
The Voltera A 300.4 is a compact four-channel half-rack power amplifier with a total output power of 300 watts. The amplifier channels can be individually selected to drive 75 watts per channel into 4 ohm, 8 ohm, 70 V, or 100 V. Power sharing is also supported, allowing up to 150 watts to be delivered by any channel. The A Series is ideal for restaurants, hotels, bars, education, small houses of worship, corporate or other applications where sound distribution or reinforcement is needed.
Product Features
300 Watts total output.
4 channels
Flexible output channel design supporting 100 V, 70 V, 8 ohm or 4 ohm per channel
Each channel can drive up to 150 watts (twice the symmetric power)
Halfwidth design allows single or tandem mounting in 1 RU1. Can be mounted in a variety of other locations, including under tables, on walls, behind screens/monitors, in ceilings, and on shelves in credenzas1
Default 4 dBu input sensitivity no matter what load means that it is easy to drive with any source
Includes manual per-channel configuration: mode switches for Lo/Hi-Z, Gain trim2 and high-pass filter options
The internal fan required by the high-power capability is thermally controlled and support whisper mode for normal operation
Includes Tesira processing blocks for applicable Biamp loudspeakers
Auto standby mode
CE marked, UL listed, and RoHS compliant
Covered by Biamp Systems five-year warranty
Product Specifications
Output section
Total output all channels driven: 300 W
Number of channels: 4
Maximum output voltage: 147 Vpk
Maximum output current: 13 Apk
Power per channel all channels driven
100/70V: 75 W
8 ohm: 75 W
4 ohm: 75 W
Max power per channel using power sharing
100/70V: 150 W
8 ohm: 150 W
4 ohm: 150 W
THD+N (20 - 20000 Hz for 1 W into 8 ohm): <0.5%
THD+N (1 kHz, 1 dB below clip): <0.008%
Frequency response (20 - 20000 Hz, 8 ohm, unweighted): +/-0.5 dB
Signal to Noise ratio (8 ohm): >103 dBA
Channel separation (crosstalk at 1 kHz): >75 dB
Input impedance (balanced): 8 kohm
Input sensitivity (for all Mode options): +4 dBu (1.23 Vrms)
Max input level: +24 dBu
Gain for 70 / 100 V: 35.2 / 38.2 dB
Gain for 8 ohm: 26 dB
Gain for 4 ohm: 23 dB
Front panel indicators
Temp: Amplifier channel and power supply temperature
Limit: Shows if the limiters are engaged
Signal: Signal status per channel
Mute: Shows if the mute input is engaged
Power: Shows if it is on / standby
Rear panel controls/indicators:
Signal level indicator: Signal level and limiter action
Mode switch / ch. (4 Ω / 8 Ω / 70 V / 100 V): Defines the gain and the limiter thresholds
High pass filter: 70 Hz 12 dB/octave (on/off)
Gain trim (default 0 dB): In addition to reducing the gain down to -infinity, it can boost the gain and power by up to 3 dB
Control/monitoring IO:
Mute all channels (input)
Health (output)
Sleep mode status (output)
Sleep mode (input)
Included accessories:
Rack solution for single/tandem 19" 1 RU mount
Brackets for mounting under table/on wall/under ceiling
Overall dimensions
HxWxD: 1.7 x 8.7 x 11.4 inches (44 x 220 x 290 mm)
Weight: 6.1 lbs (2.7 kg)
Cooling: Variable speed fans, front to back airflow
Environmental
Operating temperature: 32-104°F (0-40°C)
Relative humidity: 0-95% non-condensing
Power: 100-240 VAC, 50/60 Hz
Standby: <1 W (designed to meet Energy Star requirements)
What's in the Box?
Rack solution for single/tandem 19" 1 RU mount
Brackets for mounting under table/on wall/under ceiling
We use cookies to provide website functionality and to analyse traffic on our website. We (and our service providers) use small text files called cookies and similar technology on your device. These cookies do not reveal your identity, web use or other behaviour. Our Cookie Statement provides more information and explains how to update your cookie settings. View our cookies policy. By clicking 'Accept All Cookies', you agree that this site using cookies. If you do not want cookies to be used, you can click the "Decline All Cookies" button, but it may have an impact on the way you experience our website and others.