QSC RMX2450a | เครื่องขยายเสียง 2 CH 500 วัตต์

รหัสสินค้า : RMX2450a

QSC RMX2450a เครื่องขยายเสียง 2 CH 500 วัตต์

   The 750 watts per channel at 4Ω QSC RMX2450a Low-Z Power Amplifier is a 2RU rack mountable amplifier designed for live sound reinforcement applications. The amplifier features two 2-tier Class H 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
• 500 watt x2 @ 8 ohms, 750 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 RatingStereo mode (both channels driven)

8 Ω FTC 20 to 20,000 Hz at 0.1% THD: 450 W

8 Ω EIA 1,000 Hz at 0.1% THD: 500 W

4 Ω FTC 20 to 20,000 Hz at 0.1% THD: 650 W

4 Ω EIA 1,000 Hz at 0.1% THD: 750 W

2 Ω EIA 1,000 Hz at 0.1% THD: 1200 W Bridge-mono mode 8 Ω FTC 20 to 20,000 Hz at 0.1% THD: 1300 W

Bridge-mono mode 8 Ω EIA 1,000 Hz at 0.1% THD: 1500 W

Bridge-mono mode 4 Ω EIA 1,000 Hz at 0.1% THD: 2400 WSignal-to-Noise Ratio> -100 dBDistortionSMPTE-IM: < 0.02%

For 8 and 4 Ω load

THD for 20 to 20,000 Hz at 10 dB below rated power: less than 0.03%

THD for 1,000 Hz at full rated power: less than 0.03%

Input Sensitivity1.23 V (+4.0 dBU) at 8 ΩVoltage Gain50x (34 dB)Circuit Type2-tier Class HPower Consumption6.3 A

1/8 power pink noise at 4Ω 15.6 A

Damping Factor> 300 at 8ΩInput Impedance10 kΩ balanced

20 kΩ unbalancedFrequency Response20 to 20,000 Hz +0/-1 dB -3 dB points

5 Hz to 50,000 Hz (LF filter bypassed/8 Ω)Input ConnectionsActive balanced 3-pin Euro-style detachable terminal block

2 x 3-pin XLR

2 x 1/4″ TRSCoolingContinuously variable speed fan, back-to-front airflowOutput ConnectorsTouch-proof binding posts

2 x Neutrik SpeakonControls Front PanelAC switch

Channel 1 gain knob

Channel 2 gain knobControls Rear Panel10-position DIP switchIndicatorsPower-on: green LED

Signal: yellow LED (1 per channel)

Clip: red LED (1 per channel)

Protect: red LED (1 per channel)Power Requirements100, 120, 230 VAC at 50 to 60 Hz (factory configured)ProtectionAmplifier: 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 Spaces2Plug Type100/120V: 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)Weight44.5 lb (20.2 kg)