Ashly KLR-4000 is lightweight, high-performance amplifier incorporating the latest technologies delivering quality and value at an affordable price. Whether your application is professional audio or fixed performance installation, the KLR-4000 is optimized to provide
reliable audio performance with sonic perfection.
The KLR-4000 is optimized to deliver high levels of sustained power, extraordinary
audio performance, and road-proven reliability into 2, 4, or 8 Ohm loads and are housed in a a uniform, rugged 2RU chassis. The KLR-4000 uses a switch mode power supply which assures you of flawless lows, punchy mids and pristine highs. The output topology of the KLR-4000 is a 2-step Class-H design.
Rated for 2 Ohms operation
Balanced inputs via 3-pin Euroblock
Combo XLR/TRS connectors
Neutrik® speakON® type output connectors
Switch-mode power supply with extensive protection circuitry
On/off limiter switch
Forced-air cooled (front-in, rear-out)
Removable dust filters, easy to clean
Front-mounted attenuators
Removable amp handles for permanent installation
Optional locking front panel volume knobs
Safety/Compliance: cCSAus, CE, FCC, RoHS
requency Response (1W @ 8 Ohms):
20Hz–20kHz (+0.3dB)
5Hz–70kHz (-3dB down point)
Damping Factor: >380 (100Hz @ rated power @ 8 Ohms)
THD (20Hz–20kHz):
10dB below rated output
@ 4 Ohms <0.05%
Input Impedance: 12k Ohm, balanced
Max Input Level: +21dBU
HPF: 30Hz, 50Hz, Off (12dB/Oct)
Amplifier Protection:
Output Overcurrent, DC Output,
Chassis Temperature, Mains Breaker (KLR-5000 uses internal Mains fuse)
Operating Temp/Humidity: -10C to +40C/Humidity: 0% to 90%
Front Panel
Airflow/Cooling: Front-to-Rear, Variable Speed Fan
Front Panel Indicators: Protection/Clip, Signal, Power
Attenuators: Front Panel (each channel)
Rear Panel
Input Connectors (each Ch): 3-pin Euroblock, XLR, ¼” TRS Phone Jack
Output Connectors: 4-pin SpeakON® type (each channel)
Power Cable Connector: 3-prong NEMA 5–15, 5–20 for KLR-5000
Weights, Dimensions & Power
Dimensions: 19 W x 3.5 H x 16″ D (482 x 88 x 407mm)
Weight: 26.6lbs (12kg)
Power Requirements: 120VAC or 240VAC, ±10% (factory set) 50–60Hz
