Content | Professional amplifier
- 150W RMS each channel on 8 Ohm
- 250W RMS each channel on 4 Ohm
- Frequency response: 10-50.000 Hz
- Input sensitivity: 0,775V
- Signal/noise rate: >93dB
- Segregation ratio: >70dB
- Dumping factor: >350
- Input impendance: 20Kohms
- Slew rate: 45V/microsec.
- Thermal protection, short circuit, overload
- Ground/Lift switch
- RCA, Jack 6.3 mm inputs
- Speakon, jack 6.3 mm, binding connector output
- Dimensions: 482 x 294 x 88 mm
- Weight: 10kg
- Package: 1 piece each box |
The DA-250F is a 4-Channel Digital Power Amplifier featuring lightweight, compact, high power output, and high efficiency. It delivers 250 W × 4 channels (4 Ω output) using a switching power supply. Each channel is equipped with an independent power section. It can be mounted in an EIA Standard equipment rack (1 unit size).
*0 dB = 0.775 V Power Source | 120 V AC, 50/60 Hz | Amplification System | Class D | Power Consumption | 200 W (based on UL/CSA standards)
1300 W (rated output 4 Ω × 4)
850 W (rated output 8 Ω × 4) | Input | 4 circuits, +4 dB* (1.23 V) (input level control in maximum position),
10 kΩ, electronically-balanced, removable terminal block (3 pins)
CH 1 mode ON/OFF switch (ON: CH 1 to All ch, OFF: Each ch) | Rated Output | 4 channels: 250 W × 4 (4 Ω), 170 W × 4 (8 Ω)
2 channels (BRIDGE): 500 W × 2 (8 Ω)
M4 screw terminal, distance between barriers: 8.8 mm | Frequency Response | 20 - 20,000 Hz (±1 dB) | Total Harmonic Distortion | 0.1% (1 kHz)
0.3% (20 - 20,000 Hz) | Protection Circuit | Protection against excessive current flow due to overload,
short circuit, unusual DC voltage output,
temperature rise at power amp. heat sink (110℃ or more),
temperature rise inside the unit (80℃ or more) | S/N Ratio | 100 dB (A-weighted) | Crosstalk | 70 dB (A-weighted) | LED Indicator | Power (blue) × 1, Input (green) × 4, Output (yellow) × 4,
Peak (red) × 4, Protect (red) × 4 | Cooling | Forced air cooling | Operating Temperature | -10℃ to +40℃ | Operating Humidity | 90% RH or less (no condensation) | Finish | Panel: Aluminum, black, alumite Case: Plated steel sheet | Dimensions | 482 (W) × 44 (H) × 401.8 (D) mm | Weight | 6.6 kg | Accessory | Power cord (2 m) …1, Removable terminal plug (3 pins) …4,
Tamper-proof cap …4 |
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overview specs docs
Specifications
- Signal to Noise (20 Hz - 20 kHz): 100 dB
- Input Sensitivity: 1.2 Vrms
- Voltage Gain (8 Ohms): 32.2 dB
- Output Circuitry: Class B
- Power Requirements: 6.3A
- Frequency Response: 20 Hz - 20 kHz, +0, 1 dB
- Dynamic Headroom (4 Ohms): 2 dB
- Damping Factor: 100
- Input Impedance: Greater than 20k (balanced)
- Maximum Input Level: +24 dB (16 Vrms)
- Input Connectors (each channel): 3-pin XLR and 1/4-inch TRS, balanced, parallel Phono, unbalanced
- Output Connectors (each channel): Speakon, 1/4-inch, Binding Posts
- Amplifier and Load Protection: Short circuit, open circuit, thermal, RF protection Load protected against DC faults
- Rear Panel Controls: Full Range / Crossover switch
- Dimensions (H x W x D): 3.5 x 19 x 10.1 inches (89 mm x 483 mm x 257 mm)
- Weight: 25 lbs (11.5 kg)
Stereo Mode:
- 8 Ohms / both channels driven: 300 Watts
- 8 Ohms / single channel driven: 350 Watts
- 4 Ohms / both channels driven: 425 Watts
- 4 Ohms / single channel driven: 500 Watts
- 2 Ohms / both channels driven: 200 Watts
Distortion:
- 8 Ohms: less than 0.05%
- 4 Ohms: less than 0.1%
Front Panel Controls and Indicators:
- Gain controls, 21 detents
- Red Clip LEDs, proportional, 0.1% THD threshold
- Green Signal LEDs, threshold -35 dB
- Blue Power LED, AC on
Dimensions and Weight in Packaging
Shipping Weight: 28 lbs
Shipping Dimensions: 24 x 15 x 6 in
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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) |
Power Output Level R-150 PLUS
STEREO
8ohm(T.H.D 0.05%) 50W+50W
4ohm(T.H.D 0.05%) 75W+75W
BRIDGED MONO
8ohm(T.H.D 0.05%) 50W
8ohm(T.H.D 0.5%) 170W
Frequency Response 20Hz- 20kHz, ±0.5dB
Convection Cooled
SoftStart Protection System
Balanced 10kΩ@0.775V Inputs
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A full model revision takes Yamaha's high-end PC-N power amplifiers to the next level - the PC-1N Series. The new PC-1N Series amplifiers feature an extraordinarily solid low end, rich midrange, and superbly defined highs. They also deliver fast response and exceptional stability even in the face of serious power supply limitations. Refinements throughout this expanded five-model lineup make these amplifiers the new benchmarks for quality, reliability, and versatility in professional applications. Frequency Response: 10 Hz – 40 KHz. Output Power: 2 x 250 Watt / 8Ω RMS, 2 x 450 Watt / 4Ω RMS, 900 Watt / 8Ω bridge RMS. Weight: 12,5 Kg.
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