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B-52 US 3000 Power Amplifier

  • It  utilizes low noise, low distortion circuitry and high current output stages
  • It uses 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.

At a Glance

 

B-52 Professional Audio believes in overbuilding all of their products and the US-Series Professional Power Amplifiers are no exception. They 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. They 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. 

Specifications

 

Features:

• 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

 

Power:

 

  • Stereo Both Channel Driven @ 1kHz, 1%THD
    8 Ohms: 500 watts
    4 Ohms: 800 watts
    2 Ohms: 1200 watts
  • Bridged Mono @ 1kHz, 1%THD
    8 Ohms: 1600 watts
    4 Ohms: 2400 watts
  • Input Sensitivity: 1.23 Vrms (+4 dBu) for full power @ 4 Ohms
  • Input Impedance: 30K ohms Balanced/15K ohms Unbalanced
  • 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: H
  • Cooling: Continuously variable speed fan, front to rear
  • Protection: Short circuit, thermal, current limit, dc offset, AC current inrush, RF protection, subsonic, turn on/off muting
  • Connectors:
    Input: Combo female XLR & 1/4″ TRS jack. Link: Male XLR
    Output: Both 5-way biding post and Speakon
  • 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
  • AC consumption: Both channels driven at 4 Ohm load, at 115Vac (for 230V divide by 2)
  • Controls: Front: Power on/off switch, volume controls for each channel
  • Typical level, 1/8 power pink noise: 7A
  • Severe level, 1/3 power pink noise: 14.8A
  • Dimensions: 19″ (482mm) x 3.5″ (88mm) x 17.2″ (438mm)
  • Net weight: 49lb (22.3kg)

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