BUX Series ? BUX 5.0Professional Power Amplifier Presentation Power amplification at its best means absolutely linear handling of any complex audio signal. Our BUX 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 […]
Power amplification at its best means absolutely linear handling of any complex audio signal.
Our BUX 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 Series Power Modules, share component topology and maintain technical coherence by increasing heat sink size according to power output.
BUX 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.
Power amplification at its best means absolutely linear handling of any complex audio signal.
Our BUX 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 Series Power Modules, share component topology and maintain technical coherence by increasing heat sink size according to power output.
BUX 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.
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
Power Output Level: QD4240
8ohm (Quad Ch) 40W
4ohm (Quad Ch) 60W
8ohm bridged mono 120W
Input Sensitivity (8ohm, 1kHz) 0.775Vrms
Input Impedance 20kohm Balanced
Slew Rate (8ohm, Full Swing) ±30V/?sec
Frequency Response (±0.5dB) 20kHz ~ 50kHz
T.H.D. (f=20Hz~20kHz, Half Power) 0.03%
Signal to Noise Ratio 105dB
Damping Factor (8ohm, 1kHz) 100
Rasidual Noise -85dB
Channel Separation (8ohm, 1kHz) 80dB
Voltage Gain (4ohm) 26dB 29dB 32dB
Power Source 100-120VAC or 220-240VAC ; 50/60Hz
(supplied AC mains transformer depends on country requirements)
Power Consumption 300W 420W 770W
Weight 11.5kg/25.3lb 15.5kg/34.2lb 17kg/37.5lb
Dimensions 482(W) x 88(H) x 369(D) mm
/19(W) x 3.5(H) x 14.5(D) in
Features
• The Macro-Tech® i Series continues the Crown®
Macro-Tech legacy of unparalleled sonic accuracy and
detail, putting sound quality above all else
• Patented, cutting-edge Class-I circuitry gets more
power out of an amplifi er with less waste
• Rugged construction ensures that all Macro-Techs are
built to withstand years of abuse on the road
• Global Power Supply — designed to deliver maximum power
no matter what country you work in
• Built-in load, line voltage, input and output monitoring
• Standard Ethernet networking via System Architect® lets
system operators monitor and control the amplifi er from any
location
Specifications
Performance
Frequency Response (at 1 watt, 20 Hz - 20 kHz
into 8 ohms): ±0.25 dB.
Signal to Noise Ratio (below rated full-bandwidth
power, A-weighted): > 110 dB.
Total Harmonic Distortion (THD) (at 2 watts into 8
ohms):
Total Harmonic Distortion (THD) Plus Noise (at
full rated power):
Intermodulation Distortion (IMD) (60 Hz and 7
kHz at 4:1, from full rated output to –30 dB):
Damping Factor (20 Hz to 100 Hz at 8 ohms):
> 5000.
Crosstalk (below rated power, 20 Hz to 1 kHz):
> 80 dB.
Common Mode Rejection (CMR) (20 Hz to 1
kHz): 55 dB, typically >70 dB.
DC Output Offset (shorted input):
Input Impedance (nominal): 10 kilohms balanced,
5 kilohms unbalanced.
Maximum Input Level: +20 dBu typical.
Network: Onboard HiQnet™, compatible with
standard 100 Mb Ethercom hardware.
Load Impedance: (Note: Safe with all types of
loads)
Stereo: 1/2/4/8/16 ohms.
Bridge Mono: 2/4/8 ohms.
Input Sensitivity (referenced to 8 ohm rated
output): 1.4V, 32 dB gain, and 26 dB gain.
Voltage Gain (referenced to 8 ohm rated output):
MA-5000i: 37.1 dB to 22.2 dB
MA-9000i: 37.9 dB to 23.0 dB
MA-12000i: 39.3 dB to 24.5 dB
Required AC Mains: Universal AC input, 100-
240VAC, 50/60 Hz (±10%). Maximum AC mains
voltage 264VAC.
AC Line Connector: Five cordsets supplied with
amplifi er (USA, UK, European, Australia, India).
Engineered from the ground up for unmatched quality and performance, the Crown? DSi Series of power amplifiers offers three models of 500W, 800W, and 1200W per channel at 4 ohms. Onboard digital signal processing includes crossovers, EQ filters, delay and output limiting. Rear panel HD-15 connector provides easy input/output connectivity between DSi amplifiers and the new DSi-8M System Monitor. The intuitive front panel LCD screen guides installers through a setup process? featuring presets for the industry-standard JBL cinema loudspeaker systems? to make configuration quick and easy. At the touch of a button, Crown?s DSi cinema amplifiers deliver perfectly matched performance with each award-winning JBL ScreenArray? system, making this the ultimate cinema solution.
Features : Includes three models of 500W, 800W, and 1200W per channel at 4 ohms Automatic presets for popular JBL cinema speaker systems for quick, easy configuration Intuitive front-panel LCD screen guides installers through setup Onboard digital signal processing includes crossovers, EQ filters, delay, and output limiting Computer connectivity via USB allows fast setup and configuration with HiQnet? System Architect? software Rear-panel HD-15 connector provides easy input/output connectivity between DSi amplifiers and new DSi-8M System Monitor Switch-mode universal power supply All products fill 2U rack spaces and weigh under 19 pounds Barrier strip outputs, removable Phoenix-style input Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications
The Crown? DSi 1000 power amplifi er shall be a solid-state two-channel model with a switch-mode universal power supply. A rear-panel HD-15 connector shall provide input/output connectivity between the DSi amplifi er and the DSi-8M System Monitor. The outputs shall be usable as stereo or bridged-mono modes of operation. The bridged-mono mode shall bridge the outputs to provide increased output voltage. Front panel controls and indicators shall include the following: Level: Detented rotary level control, one per channel. Power Switch: On/off switch applies AC power to the amplifi er. Sel/Prev/Next Buttons: Three buttons near the LCD screen shall be used to access menu items. LCD Screen: Backlit liquid crystal display shows speaker presets and signal processing. Signal Indicator: Green LED, one per channel, fl ashes when a very low-level signal is present at input. ?10 Indicator: Green LED flashes when output signal exceeds ?10 dB below clip. ?20 Indicator: Green LED flashes when output signal level exceeds ?20 dB below clip. Ready Indicator: Green LED, one per channel, illuminates when the amplifi er is ready to produce audio. Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion. Temp/Fault Indicator: Red LED, one per channel, illuminates under Fault or excessive temperature conditions. Power Indicator: Blue LED illuminates when the amplifi er has been turned on and has power. Rear panel controls and connectors shall include the following: AC Line Connector: NEMA 5-15P (15A). Input Connector: Two 3-pin removable Phoenix-type connectors each accept a balanced line-level input signal. Output Connectors: 4-position barrier strip with connectors for dual louspeakers or bridge-mono loudspeaker. HiQnet USB Connector: Type B, connects to a HiQnet network. HD-15 Connector: For cinema I/O compatibility with DSi-8M System Monitor. The amplifi er shall have the following specifi cations: Output Power: 2 ohm Stereo (per channel): 700W with 1% THD, 4 ohm Stereo (per channel): 500W with 0.5% THD, 8 ohm Stereo (per channel) 275W with 0.5% THD, 4 ohm Bridge-Mono: 1,400W with 1% THD, 8 ohm Bridge-Mono: 1,000W with 0.5% THD. Voltage Gain at 1kHz, 8 ohm rated output: 26 dB. Frequency Response: +0/?1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms. Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo mode, 4 to 16 ohms in Bridge-Mono mode. Sensitivity at 8 ohm rated output: 2.35V. Sensitivity at 4 ohm rated output: 2.24V. Sensitivity at 2 ohm rated output: 1.88V. Signal to Noise Ratio (below rated 8-ohm power at 1 kHz): 105 dB (A weighted). Damping Factor: Better than 500 from 20 Hz to 500 Hz. Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz. Input Stage: Input is electronically balanced and employs precision 1% resistors. Input Impedance (nominal): 20 k ohms, balanced;10 k ohms, unbalanced. Maximum Input Signal: +22 dBu typical. AC Line Voltage and Frequency Confi gurations Available: 100V, 120V, 220-240V, 50/60 Hz. AC Line Current: 6.5A. At Idle: Draws no more than 90 watts. Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing). The DSP section shall have the following specifi cations: EQ: 6 parametric fi lters per channel with adjustable Q, boost/cut ±15 dB. Also adjustable high and low shelving fi lters. Filters: Highpass and lowpass per channel. Butterworth 12/18 dB per octave and Linkwitz-Riley 24 dB per octave. High and low shelving fi lters, one per channel. Delay: Up to 50 msec total delay per channel. Output Limiter: Prevents clipping and protects loudspeakers. Choice of ?3, ?6, or ?12 dB threshold per channel. Presets: 5 user-defi nable loudspeaker presets and 15 factory-default JBL system presets. Protection shall include the following: DSi-Series amplifi ers shall be protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive output current, and input overload damage. They also protect loudspeakers from input/output DC, large or dangerous DC offsets and turn-on/turn-off transients The chassis shall be steel. Cooling shall be by a proportional speed fan with front-to-rear airfl ow. Dimensions shall be EIA Standard 19-in. rack mount width (EIA RS-310-B), 3.5 in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mounting surface. Net weight shall be 19 lb (8.6 kg). Shipping weight shall be 22 lb (10.0 kg)
L1400 450W-450W 4ohm (280W-280W8ohm)
COMPACT MODERN DESIGN
Compact size (2U-Rack Height) with up to 1200W per channel@2ohms
these amps save valuable rack space without compromising power output.
HIGH CURRENT TOROIDAL TRANSFORMER
A high-current toroidal transformer saves rack space
and minimizes hum and noise.
EXCELLENT SOUND QUALITY
The low T.H.D.(0.05%) and high damping factor (400 or higher)
gives excellent sound quality.
2 STAGE POWER SUPPLY
The high-power units (L1800 and L2400) have a 2-Stage Class-H design
that maximizes their performance.
EQUIPPED WITH 30Hz or 50Hz HPF
All amplifiers are equipped with high-pass filters on each channel to
help maintain sound quality, yet help protect the loudspeakers.
EXTENSIVE PROTECTION CIRCUITS
Extensive protection circuits monitor over voltage/current conditions, overheating,
output shorts, and DC voltage to improve performance and reliability.
CLIP-LIMITER CIRCUITS
Clip-limiters on each channel are provided to help prevent
distortion due to excessive signal levels.
L.E.D FUNCTION DISPLAYS
Power, Clip limiter, Signal, Protection, Mode (Parallel/Stereo/Bridged)
LEDs on the front panel indicate the status of the unit in operation.
L2400 750W-750W 4ohm (500W-500W 8ohm)
COMPACT MODERN DESIGN
Compact size (2U-Rack Height) with up to 1200W per channel@2ohms
these amps save valuable rack space without compromising power output.
HIGH CURRENT TOROIDAL TRANSFORMER
A high-current toroidal transformer saves rack space
and minimizes hum and noise.
EXCELLENT SOUND QUALITY
The low T.H.D.(0.05%) and high damping factor (400 or higher)
gives excellent sound quality.
2 STAGE POWER SUPPLY
The high-power units (L1800 and L2400) have a 2-Stage Class-H design
that maximizes their performance.
EQUIPPED WITH 30Hz or 50Hz HPF
All amplifiers are equipped with high-pass filters on each channel to
help maintain sound quality, yet help protect the loudspeakers.
EXTENSIVE PROTECTION CIRCUITS
Extensive protection circuits monitor over voltage/current conditions, overheating,
output shorts, and DC voltage to improve performance and reliability.
CLIP-LIMITER CIRCUITS
Clip-limiters on each channel are provided to help prevent
distortion due to excessive signal levels.
L.E.D FUNCTION DISPLAYS
Power, Clip limiter, Signal, Protection, Mode (Parallel/Stereo/Bridged)
LEDs on the front panel indicate the status of the unit in operation.
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