Price updated 3 May 2026, 08:00
Behringer KM400 Power Amp with ATR
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£179.00
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Product Description
- Power that performs With up to 400 watts of power in bridge mode the KM400 ensures your sound cuts through clearly even in demanding live settings. It handles 2 x 190 watts at 4 ohms or 2 x 120 watts at 8 ohms giving you flexibility for different speaker configurations. Whether you&rsquo
- re amplifying vocals instruments or playback the power output remains stable and consistent. Its switch-mode power supply keeps things efficient and quiet providing clean energy delivery without excess noise or weight. Clarity through ATR technology ATR (Accelerated Transient Response) technology means your sound reacts fast and naturally to every musical detail. It captures dynamics with precision producing tight defined low end and sparkling highs. You&rsquo
- ll hear every nuance making it especially useful for mixing live or in rehearsal spaces. This responsiveness helps your speakers perform at their best maintaining clarity and balance even when the levels rise perfect for musicians who want accuracy and power in one amp. Reliable protection and control Each channel on the KM400 features independent DC and short circuit protection automatically keeping both the amplifier and connected speakers safe. Built-in zero-attack limiters prevent distortion and clipping ensuring smooth output even under pressure. You also get signal and clip LEDs that make it easy to monitor performance at a glance. These small but essential features make managing your live sound setup simpler and more secure so you can focus on your performance instead of your equipment. Built for real-world use The KM400&rsquo
- s all-steel rackmount chassis is designed to handle the knocks and bumps of life on the road. Front-to-back ventilation keeps airflow consistent maintaining performance during long sets. Its professional connectors including balanced XLR inputs and twist-lock speaker outputs guarantee reliable signal transfer even in busy live environments. Compact and robust it fits easily into standard racks giving you a dependable power source that&rsquo
- s ready whenever you are. Features Delivers 400 watts of clean reliable power ATR technology ensures quick precise sound response Zero-attack limiters protect against sudden overloads Balanced XLR inputs provide noise-free operation Twist-lock outputs offer secure speaker connections Independent protection on each channel for safety Front-to-back cooling keeps temperatures stable Durable 2U steel rackmount chassis built for transport Specifications Continuous RMS Output Power (8 ohm per Channel): 120 W RMS Continuous RMS Output Power (4 ohm per Channel): 190 W RMS Continuous RMS Output Power (8 ohm Bridge Mode): 400 W RMS Connectors - Inputs: 2 x XLR 2 x 1/4 TRS 2 x RCA Connectors - Outputs: 2 x Locking-Style Professional Speaker Connector Binding Post Input Impedance (XLR / 1/4 TRS): 30 k ohm Balanced / 15 k ohm Unbalanced Input Impedance (RCA): 14 k ohm Unbalanced Output Circuit Type: Class-AB Complementary Linear Output Circuit Protection: Short Circuit Current DC Fault AC Fuse Limiter Thermal Cut Damping Factor: >245 @ 8 ohm Frequency Response (@ -10 dB Below Rated Output Power): 20 Hz &ndash
- 20 kHz +0/-0.5 dB Frequency Response (@ -3 dB): 10 Hz &ndash
- 80 kHz Signal-To-Noise Ratio: >100 dB (Unweighted 20 Hz &ndash
- 20 kHz) Voltage Gain @ Level Control Max: 32 dB Input Sensitivity @ Level Control Max: 0.77 V / 26 dB / 1.4 V (Switchable) Front Controls: Power Switch Level Control (Channel A/B) Rear Controls: Sensitivity Limiter Ground/Lift Mode Switch Indicators: Power (White LED) Signal (Green LED) Clip (Red LED) Protection (Yellow LED) Bridge Mode (Yellow LED) Power Supply (USA/Canada): 120 V 60 Hz Power Supply (UK/Australia/Europe): 220&ndash
- 240 V 50/60 Hz Power Supply (Korea/China): 220&ndash
- 240 V 50/60 Hz Power Supply (Japan): 100 V 50/60 Hz Power Consumption @ 1/8 Rated Power: 400 W Mains Connection: Standard IEC Receptacle Weight: 8.5 kg Dimensions (H x W x D): 88 mm x 482 mm x 317 mm Rack Size: 2U Standard Rackmount Product Code: KM400
