|
|
|
|
Presentation
|
Download Catalogue
Download Operation Manual
|
|
|
|
Power amplification at its best means
absolutely linear handling of any complex audio signal.
Our BUX II Series are unique, powerful amplifiers built to meet the highest professional requirements, thanks to new circuit philosophy that
guarantees outstanding performance with field proven reliability.
With these qualities, RAM Audio units outperform most modern amplifiers in terms of technical specs and pure sonic performance.
To achieve industrial economy and efficiency, the BUX II Series Power Modules, share component topology and maintain technical coherence by increasing heat sink size according to power output.
BUX II Series have been designed giving extreme attention to all production steps from the engineering stand point. All boards are naturally double sided
plate-through fibre glass. Most advanced SMT circuits are used for overall reliability, ease of assembly and full field servicing.
|
|
|
|
Features
|
|
|
|
• 2/3U high, heavy duty steel chassis |
|
• Modular construction for easy servicing |
|
• Symmetrical layout for even weight distribution |
|
• High efficiency toroidal main transformer |
|
• Oversized, high energy, linear power supply |
|
• 2 and 3 steps, Class H Audio topology |
|
• Dual, parallel or bridged operation |
|
• Twin balanced inputs (Neutrik® XLR connectors) |
|
• Dual Speakon® and Binding posts outputs |
|
• 41 step detented input attenuators |
|
• High quality components used throughout |
|
• Dual, continuously variable speed axial fans |
|
• Efficient back to front cooling |
|
• Fault, signal, and clip indicators |
|
• Duraluminium, 8mm thick front-panel |
|
• Unobtrusive carrying handles |
|
• Selectable Gain: 26, 32 or 38 dB |
|
|
|
Protections
|
|
|
|
• Calibrated mains fuse |
|
• Independent channel supply fuses |
|
• Input signal muting at turn on |
|
• Continuous short-circuit protection (CSP™) |
|
• Thermal overload protection |
|
• Intelligent clip-limiter (ICL™) |
|
• Progressive Ramp input signal |
|
• Currentless relay operation (CRO™) |
|
|
|
Frequency Response (power bandwidth ±0.25dB):
20Hz-20kHz |
|
Phase Response (@1W 20Hz-20kHz): ±15deg |
|
Total Harmonic Distortion (20Hz-20kHz): <0.05% |
|
Intermodulation Distortion (SMPTE): <0.05% |
|
Crosstalk (20Hz-20kHz): >75dB |
|
Voltage Gain ( selectable): 26/32/38 dB |
|
Sensitivity (rated power @8ohms): 3.0: 3.5/1.7/0.9 V
4.5: 3.9/1.9/1
V 6.0: 4.5/2.2/1.1
V 8.0: 5.3/2.7/1.3 V |
|
Signal to noise ratio (A weighted): 3.0: 115dB
4.5: 116.5dB 6.0: 118dB
8.0: 120dB |
|
Required AC Mains (@4ohms 1/8 rated power): 3.0:
5.0A 4.5: 7.5A 6.0:
8.5A 8.0: 13.7A |
|
Dimensions (WxHxD): 3.0/4.5: 483x88.9x442
mm - 19x3.5x17.4 inches
6.0/8.0: 483x133.3x480 mm - 19x5.25x18.9 inches |
|
Weight (Net): 3.0: 20Kg - 45Lbs
4.5: 21Kg - 46Lbs 6.0: 38Kg -
84Lbs 8.0: 39Kg - 85Lbs |
|
Protections: Soft-start, Turn-on Turn-off
transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit (CSP™),
Open or mismatched loads, Overloaded power supply, Input overload (ICL™),
CRO™ |
|
|
|
Download Catalogue
Download Operation Manual
|
|
|
