คลิก ซื้อผ่าน LINE
คลิก ซื้อผ่าน Facebook
โทร. 081-8842022
QSC RMX1450A Power Amplifier (280W x 2 @ 8 Ohms)
เครื่องขยายเสียงกลางแจ้ง เพาเวอร์แอมป์ QSC RMX1450A มีกำลังขับ 280 วัตต์ ที่ 8 โอมห์ 500 วัตต์ ที่ 4 โอมห์, LED Indicators for Power, Signal, Clip, Built-In Protection Circuits, User-Defeatable Clip Limiters, Balanced 1/4″ TRS, XLR, and Strip Inputs
The 500 watts per channel 4Ω QSC RMX1450a Low-Z 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.
The chassis of the amplifier is designed with front to rear cooling vents and includes selectable low-frequency filters at 30 Hz and 50 Hz to protect speakers from bottoming out and improve headroom when driving mid and high frequencies.
The front panel of the unit features two gain control knobs for easy access and each channel is protected by a dedicated DC and thermal overload protection circuit. For inputs, the back of the unit accepts both balanced 1/4″ and XLR inputs. For outputs, the unit features both Neutrik Speakon and touch-proof binding post connections.
Features:
- Stereo or bridged-mono power amplifier
- 280 watt x2 @ 8 ohms, 280 watt x2 @ 4 ohms
- Compact chassis is less than 16″ deep, leaving you more space in the back of your rack
- Flexible I/O with XLR and 1/4″ balanced inputs, plus binding posts and speakON outputs
- Front-mounted gain controls give you fast, easy access to your signal levels
- Switchable 30Hz/50Hz low-cut filter lets you fine-tune your system for maximum headroom
- Signal and Clip LED indicators let you monitor performance at a glance
- Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
- Defeatable clipping limiter protects speakers against signal spikes
Specifications
| Power Rating | Stereo mode (both channels driven) 8 Ω FTC 20 to 20,000 Hz at 0.1% THD: 260 W 8 Ω EIA 1,000 Hz at 0.1% THD: 300 W 4 Ω FTC 20 to 20,000 Hz at 0.1% THD: 400 W 4 Ω EIA 1,000 Hz at 0.1% THD: 500 W (0.5% THD) 2 Ω EIA 1,000 Hz at 0.1% THD: 700 W Bridge-mono mode 8 Ω FTC 20 to 20,000 Hz at 0.1% THD: 800 W Bridge-mono mode 8 Ω EIA 1,000 Hz at 0.1% THD: 900 W Bridge-mono mode 4 Ω EIA 1,000 Hz at 0.1% THD: 1400 W |
| Signal-to-Noise Ratio | > -100 dB |
| Distortion | SMPTE-IM: < 0.01%
For 8 and 4 Ω load |
| Input Sensitivity | 1.15 V (+3.4 dBU) at 8 Ω |
| Voltage Gain | 40x (32 dB) |
| Circuit Type | Class AB |
| Power Consumption | 6.0 A
1/8 power pink noise at 4Ω 9.6 A |
| Damping Factor | > 300 at 8Ω |
| Input Impedance | 10 kΩ balanced 20 kΩ unbalanced |
| Frequency Response | 20 to 20,000 Hz +0/-1 dB -3 dB points 5 Hz to 50,000 Hz (LF filter bypassed/8 Ω) |
| Input Connections | Active balanced 3-pin Euro-style detachable terminal block 2 x 3-pin XLR 2 x 1/4″ TRS |
| Cooling | Continuously variable speed fan, back-to-front airflow |
| Output Connectors | Touch-proof binding posts 2 x Neutrik Speakon |
| Controls Front Panel | AC switch Channel 1 gain knob Channel 2 gain knob |
| Controls Rear Panel | 10-position DIP switch |
| Indicators | Power-on: green LED Signal: yellow LED (1 per channel) Clip: red LED (1 per channel) Protect: red LED (1 per channel) |
| Power Requirements | 100, 120, 230 VAC at 50 to 60 Hz (factory configured) |
| Protection | Amplifier: Full short circuit, open circuit, thermal, ultrasonic, RF protection. Stable into reactive or mismatched loads
Load: Turn-on/off muting/AC coupling (850, 1450)/ Triac Crowbar (1050HD, 2450, 4050HD, 5050) on each channel |
| Rack Spaces | 2 |
| Plug Type | 100/120V: NEMA 5-15
230V: CEE7/7 |
| Dimensions (H x W x D) | 3.5 x 19.0 x 15.9″ (89.0 x 482 x 404 mm) |
| Weight | 40.0 lb (18.2 kg) |
| Packaging Info | |
|---|---|
| Package Weight | 42.2 lb |
| Box Dimensions (LxWxH) | 24.0 x 21.5 x 6.0″ |
