Biamp Voltera A 300.4 4-Channel 300W Power Amplifier

Product Description

A 300.4

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.

• 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)
• Using the included mounting accessories, the halfwidth design allows single or tandem mounting in 1 RU or mounting 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, high-pass filter, and gain trim options. Gain trim2 can boost both the gain and the power by up to 3dB
• 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

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 sharing¹
• 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)²: +4 dBu (1.23 Vrms)
• Max input level: +24 dBu
• Gain for 70 / 100 V³: 35.2 / 38.2 dB
• Gain for 8 ohm³: 26 dB
• Gain for 4 ohm³: 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)

¹ : Available on any channel if the trim is set to +3 dB
² : With the gain trim set at 0 to +3 dB
³ : With the gain trim set at 0 dB