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Reference Quality Power Amplifier [R-300 Plus] - Controls :
Front : Power on/off switch, attenuator, LED indicator
Rear : Mode seletor switch, Stereo/bridged mono switch - Connectors :
Input : 1 XLR, 1/4" balanced per channel
Output : 5-way binding post and SpeakonTM per channel - Indicators :
Power : Green, Protection : Red, Clip : Red, Signal : Green - Power Source : 100-120VAC or 220-240VAC; 50/60Hz
(supplied AC mains transformer depends on country requirements) - Power Consumption : 250W(2.4A)
- Weight : 8.4kg/18.5lb
- Dimensions (WxHxD) : 482x88x317mm/19x3.5x12.5in
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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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VLP Series Powere Amplifier
Output Power: 300W RMS Per Channel @ 4 Ohms, 1kHz, 0.1% THD 200W RMS Per Channel @ 8 Ohms, 1kHz, 0.1% THD (Bridge Mode, Mono) 600W RMS @ 8 Ohms, 1K Hz, 1% THD
Total Harmonic Distortion: Less Than 0.1% (20Hz - 20kHz @ 8 Ohms)
Frequency Response: (+/-01db, @rated output Power, 8 Ohms): 20Hz - 20K Hz
Slew Rate: 15V Per usec
Damping Factor @ 8 Ohm: 300
Impedance: 20 Ohms balanced / 10 Ohms unbalanced
Cooling System: 2 indivdual fans
Special Features: High/Low Pass Filter / Input Sensitivity Selector / Ground Lift Limiter
Dimensions (LxWxH): 14" x 19" x 3.5" / 360 x 482 x 88mm 2-rack mount spaces
Weight: 33 lbs. / 15 Kgs.
Special Features: High/Low Pass Filter; Input Sensitivity Selector; Ground Lift; Limiter
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These amplifiers offer high, stable power output and a high efficiency factor on the high performance level and are therefore the ideal choice for driving a multitude of mobile and club systems. SL series power amplifiers are equipped with a comprehensive protection package and dynamic limiters.
The integrated, switchable Low-Pass Notch filter (a typical DYNACORD special feature) corrects the frequency response and optimizes the transient behaviour of loudspeakers.
Maximum Midband Output Power, THD = 1%, 1 kHz, Dual Channel 2 Ω - 650 W, 4 Ω - 450 W, 8 Ω - 270 W Maximum Single Channel Output Power, Dynamic-Headroom, IHF-A 2 Ω - 1150 W, 4 Ω - 660 W, 8 Ω - 350 W Maximum Bridged Output Power, THD = 1%, 1 kHz 4 Ω - 1300 W, 8 Ω - 900 W Input Sensitivity, rated power @ 8 Ω, 1 kHz + 2,2 dBu (1,0 Vrms) Maximum Input Level +21 dBu (8.69 Vrms) Voltage Gain, ref. 1 kHz 32.0 dB Frequency Response, ref. 1 kHz 10 Hz...40 kHz (±1 dB) Output Stage Topology Class AB Dimensions (W x H x D), mm 483 x 88.1 x 421.5 Weight 12.6 kg (27.8 lbs)
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The high efficiency of the ED series enables maximum efficiency with low heat generation.
A new and unique Class-H circuity technology using state of the art SMD Surface Mount Technology with a reduced number of components offering performance levels exceeding audiophile levels like a slew rate of 50V/µs and high-end extended dynamic sound. The amplifier provides 2x300W into 4 Ohm is equipped complete with temperature-controlled fan cooling, all common protective circuits such as over-temperature, short circuit, RFI and soft start.
The integral soft clip limiter protects against damage to the connected loudspeakers, the activity of a protective circuit, signal and limiter are shown for each channel by LEDʼs.
| AMPLIFIER SPECIFICATIONS |
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| Power output stereo 4Ω: | 2 x 300 Watt rms | | | Power output stereo 8Ω: | 2 x 180 Watt rms | | | Power output bridged 8Ω: | 600 Watt rms | | | Frequency Response: | 20 Hz ÷ 20 kHz | | | Signal/noise rate: | > 105 dB | | | Crosstalk: | > 70 dB | | | Distortion (THD+N): | | | | Intermodulation: | | | | Damping factor: | 200:1 (8 Ω) | | | Slew rate: | 50 V/μS | |
| INPUT SECTION |
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| Input connector: | 2 x XLR balanced, 6,3mm jack unbalanced | | | Input sensitivity: | 0 / 0.775 dBm/V RMS | | | Input impedance: | 10.000 kΩ | | | Controls: | Volume control for each channel | |
| OUTPUT SECTION |
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| Output connector: | 2 x Neutrik Speakon 4 ways | |
| SYSTEM PARAMETERS |
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| Cooling: | Two-speed fan | | | Protections: | Temperature, DC, RFI short circuit, Soft-Start thermal on transformer | | | Amplifier class: | H | |
| POWER REQUIREMENT |
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| Operating voltage: | 220÷240 / 110÷120 ~ 50 / 60 V ~ Hz | | | Max.current: | 6 A | | | Power Consumption: | 1300 W | |
| PHYSICAL SPECIFICATIONS |
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| Height: | 88 / 3.46 mm/inch | | | Width: | 483 / 19.01 mm/inch | | | Depth: | 350 / 13.77 mm/inch | | | Net Weight: | 11.45 / 25.24 Kg/Lbs | |
| SHIPPING INFORMATION |
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| Package height: | 120 / 4.72 mm/inch | | | Package width: | 540 / 21.25 mm/inch | | | Package depth: | 470 / 18.05 mm/inch | | | Shipping Weight: | 13.81 / 30.44 Kg/Lbs |
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- Output Power:
500W RMS Per Channel @ 4 Ohms, 1kHz, 0.1% THD
330W RMS Per Channel @ 8 Ohms, 1kHz, 0.1% THD
- Bridge Mode, Mono 820W RMS @ 8 Ohms, 1K Hz, 1% THD
- Total Harmonic Distortion: Less Than 0.1% (20Hz - 20kHz @ 8 Ohms)
- Frequency Response: (+/-01db, @rated output Power, 8 Ohms): 20Hz - 20K Hz
- Slew Rate: 15V Per usec
- Damping Factor: @ 8 Ohm: 300
- Impedance: 20 Ohms balanced / 10 Ohms unbalanced
- Cooling System: 2 individual fans
- Special Features: High/Low Pass Filter / Input Sensitivity Selector / Ground Lift; Limiter
- build in clip limiter
- Input: XLR 3pin + Jack 6,3mm
- output: Speakon + Binding post
- Dimensions (LxWxH): 360 x 482 x 88mm 2-rack mount spaces
- Weight: 15 KG.
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