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List Price: $719.98
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"We at B-52 believe in overbuilding all of our products and the US-Series Professional Power Amplifiers are no exception. We took our time in designing these stellar looking amps to outperform the competition on any stage, in the clubs and on the road. To achieve studio quality audio reproduction we utilized low noise, low distortion circuitry and high current output stages. We used oversized toroidial transformers and large filter capacitors to deliver super clean, fist pumping output even when driving a 2 ohm speaker load. These amplifiers use the most reliable linear output devices which provide ultra low distortion and ruler flat frequency response. The US-Series is backed by our rock solid 3-year warranty and our commitment to reliability known the world over."
The Beauty Of Power- Compact size - up to 3200 watts in 2 rack spaces
- High-current toroidal transformers for greater 2-ohm power
- 21-position detent gain control knobs for consistent settings
- Front panel LED display: Power, bridge and parallel LEDs and signal, -20dB, -10dB, 0dB, clip and protect LEDs for each channel
- Protection: short circuit, output current limiting, thermal, DC offset, turn on/off muting, RF protection and circuit breaker
- Clip limiters reduce distortion without sacrificing peak performance (defeatable on US-3000/US-4000)
- Sub-sonic filters protect speakers and increase headroom (defeatable)
- Balanced combo XLR and 1/4" TRS input connectors and link XLR output connectors
- 5-Way binding post and SpeakonTM outputs
- Low-noise cooling fans with continuously variable speed and highly efficient front-to-rear forced air keeps the amplifiers cool
- 8 Ohms - 200 watts
- 4 Ohms - 300 watts
- 2 Ohms - 430 watts
- 8 Ohms - 600 watts
- 4 Ohms - 850 watts
- Input Sensitivity: 1.23 (+4 dBu) for full power @ 4 Ohms
- Input Impedance: 30K ohms Balanced/15K ohms Unbalanced
- Input CMRR: (1 kHz) Better than 60dB
- Frequency Response: 0/-0.5dB: 20Hz - 20kHz; 0/-3dB: 5Hz - 60kHz
- Signal to Noise Ratio: Better than 100dB (20Hz - 20kHz)
- Distortion (SMPTE-IM): Less than 0.03%
- Output Circuitry: AB AB H H
- Cooling: Continuosly variable speed fan, front to rear
- Protection: Short circuit, thermal, limit, DC offset, current inrush, RF protection, turn on/off muting
- Connectors - Input: Combo female XLR & 1/4" phone jack Link: Male XLR - Output: Both 5-way biding post and SpeakonTM
- Controls - Front: Power on/off switch, volume controls for each channel - Rear: Mode switch (stereo / parallel / bridge), HPF on/off, Limiter on/off (US3000/4000)
- Indicator: Power, parallel, bridge. Each channel: Signal, -20dB, -10dB, clip, protect
- Power Requirements: 115/230V 60/50Hz factory configured
- Dimensions: (W x H x D) 19" (482mm) x 3.5" (88mm) x 17.2" (438mm)
- Net Weight: 29.8lb (13kg) 35lb (16kg) 43.1lb (19kg) 49lb (22kg)
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