QSC RMX850a | เครื่องขยายเสียง 2 CH 200 วัตต์
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เครื่องขยายเสียงกลางแจ้ง QSC RMX850A มีกำลังขับ 200 วัตต์ ที่ 8 โอมห์, 300 วัตต์ ที่ 4 โอหม์, Class AB, High-current toroidal transformers for greater 2 ohm, Selectable low-frequency, Balanced 1/4″ (6.3 mm) TRS, XLR, and barrier strip inputs
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Tel: 02-991-8600, 086-514-5515
QSC RMX850a เครื่องขยายเสียง 2 CH 200 วัตต์
QSC RMX850a Power Amplifier is a 2RU rack mountable amplifier designed for live sound reinforcement applications. The amplifier features two Class AB output channels that can operate in either stereo or mono bridge mode. The unit operates on a standard 15 amp plug and utilizes high-current toroidal transformers for less noise and better performance when pushing a 2 ohm load. To reduce distortion, the amplifier utilizes independent user-defeatable clip limiters and includes LED indicator lights to show the presence of the signal and when the signal is clipping.
Features
- Compact size — up to 2500 watts in two rack spaces, or 5000 watts in three rack spaces
- High-current toroidal transformers, for greater 2-ohm power and low noise
- Independent user-defeatable clip limiters reduce distortion
- Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom
- The 4000-watt RMX4050a operates on a standard 15 amp plug (120 V)
- Both the RMX4050a and the RMX5050a feature a dual mono, high-current power supply for increased reliability and performance
- The RMX4050a's particularly exceptional combination of cooling capacity and electrical efficiency provides robust thermal performance suitable for high continuous power in 2-ohm stereo or 4-ohm bridged applications.
- Balanced 1/4-inch (6.3 mm) TRS, XLR, and barrier strip inputs
- Touch-proof binding post and Neutrik Speakon® outputs
- Front mounted gain controls for easy access
- Signal and clip LED indicators for monitoring performance
- Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
- 3-year warranty plus optional 3-year extended service contract
| Model | RMX 850a | RMX 1450a | RMX 2450a | RMX 4050a | RMX 5050a |
| Power per Channel, Stereo Mode (both channels driven) | |||||
| 8Ω, FTC 20 Hz–20 kHz, 0.1% tdD | 185 W | 260 W | 450 W | 800 (650**) W | 1050 W |
| 8Ω, EIA 1 kHz, 0.1% tdD | 200 W | 300 W | 500 W | 850 W | 1100 W |
| 4Ω, FTC 20 Hz–20 kHz, 0.1% tdD | 280 W | 400 W | 650 W | 1300 W | 1600 W |
| 4Ω, EIA 1 kHz, 0.1% tdD | 300 W | 500 W (0.5% tdD) | 800 W | 1400 W | 1800 W |
| 2Ω, FTC 20 Hz–20 kHz, 1% tdD | – | – | – | 1600 W | 2000 W |
| 2Ω, EIA 1 kHz, 1% tdD | 430 W | 700 W | 1200 W | 2000 W | 2500 W |
| Power, Bridge-Mono Mode | |||||
| 8Ω, FTC 20 Hz–20 kHz, 0.1% tdD | 530 W | 800 W | 1300 W | 2600 W | 3200 W |
| 8Ω, EIA 1 kHz, 0.1% tdD | 600 W | 900 W | 1500 W | 2800 W | 3600 W |
| 4Ω, EIA 1 kHz, 1% tdD | 830 W | 1400 W | 2400 W | 4000 W | 5000 W |
| Signal to Noise (20 Hz–20 kHz) | -100 dB | ||||
| Distortion (SMPTE-IM) | < 0.01% | < 0.02% | |||
| Input Sensitivity at 8Ω | 1.15V (+3.4dBu) | 1.23V (+4.0 dBu) |
1.42V (+5.3 dBu) | ||
| Voltage Gain | 31.6x (30 dB) | 40x (32 dB) | 50x (34 dB) | 64x (36 dB) | |
| Output Circuitry | Class AB | 2-tier Class H | 3-tier Class H | ||
| Current Draw (120 V AC) Typical, 1/8 power pink noise at 4Ω* Severe, 1/3 power pink noise at 4Ω* |
4.5 A 6.6 A |
6.0 A 9.6 A |
6.3 A 15.6 A |
10.0 A 20.1 A |
13.9 A 26.9 A |
| AC Mains Plug 100/120V 230V |
NEMA 5-15 CEE7/7 |
NEMA 5-20 CEE7/7 |
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| Distortion (typical) 20 Hz–20 kHz, 10 dB below rated power 1 kHz and below, full rated power |
< 0.03% tdD, 4Ω and 8Ω < 0.03% tdD, 4Ω and 8Ω |
< 0.02% tdD, 4Ω and 8Ω < 0.02% tdD, 4Ω and 8Ω |
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| Frequency Response | 20 Hz–20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed, 8Ω) | ||||
| Damping Factor (1 kHz and below) | > 300 at 8Ω | > 250 at 8Ω | |||
| Input Impedance | 10 kΩ unbalanced; 20 kΩ balanced | ||||
| Input Stage Clipping | 10 V rms (+22 dBu) | 6.4 V rms (+18 dBu) | |||
| Cooling | Continuously variable speed fan, back-to-front air flow | ||||
| Connectors (each channel) | Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+) Output: Touch-proof binding posts; Neutrik Speakon® |
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| Controls | Front: AC switch; Channel 1 & 2 gain knobs Rear: 10-position DIP switch |
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| LED Indicators | Power on: Green; Signal: Yellow (1 per channel); Clip/Protect: Red (1 per channel) | ||||
| Amplifier Protection | Full short circuit, open circuit, tdermal, ultrasonic, RF protection. Stable into reactive or mismatched loads | ||||
| Load Protection | Turn-on/off muting; AC coupling (850, 1450); Triac crowbar (1850HD, 2450, 4050HD, 5050) on each channel | ||||
| Product Dimensions (H×W×D) | 89 (2 RU) × 482 × 404 mm 3.5 (2 RU) × 19 × 15.9 in |
132 (3 RU) × 482 × 404 mm 5.25 (3 RU) × 19 × 15.9 in |
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| Carton Dimensions (H×W×D) | 610 × 560 × 153 mm 24 × 22 × 6 in |
610 × 560 × 229 mm 24 × 22 × 9 in |
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| Net Weight | 15.9 kg / 35 lb | 18.2 kg / 40 lb | 20.2 kg / 44.5 lb | 30.8 kg / 68 lb | 33.1 kg / 75 lb |
| Shipping Weight | 18.6 kg / 41 lb | 20.9 kg / 46 lb | 23 kg / 50.5 lb | 34.9 kg / 77 lb | 37.6 kg / 87 lb |
| Power Requirements | 100, 120, 230 V AC (factory configured), 50–60 Hz | ||||
| แบรนด์ (Brands) | QSC |
|---|---|
| รุ่น | RMX |
| จำนวนช่อง (Channels) | 2 Channel |
| กำลังวัตต์ (Max Power) | 600 Watts. |
| สี (Color) | สีดำ |
| ข้อมูลจำเพาะ | QSC RMX850a เครื่องขยายเสียง 2 CH 200 วัตต์ |
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