Lyngdorf MXA-8400 8-Channel Power Amplifier
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- Official Hi-Fi Retailer since 1973
- Usually in stock and dispatched in 1-5 working days
We offer free delivery on all orders over £100 to mainland UK. Orders under £100 are subject to a £6.50 shipping charge.
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We aim to dispatch in-stock items as soon as possible provided that we physically have the stock - but please note that sometimes we have to order from our supplier for certain products, in which case delivery should take place within 1-5 working days of the order being placed.
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You can cancel your order within 14 days of receiving your goods, in line with UK distance selling regulations. Once you’ve notified us, you have a further 14 days to return the item. Please contact us by email, phone or in writing before sending anything back.
Items must be returned in original condition and packaging, including all accessories, manuals and any promotional items. The cost of return is your responsibility and we strongly recommend insuring the goods, as refunds cannot be issued for damaged or incomplete returns. If items show excessive handling, are missing components, or cannot be resold as new, a reasonable deduction may be made.
Please note that used headphones (for hygiene reasons) and custom or special-order items cannot be returned. If you need assistance arranging a return, we’re always happy to help.
Product Summary
The Lyngdorf MXA-8400 is a premium 8-channel power amplifier designed for customers who want serious multichannel performance for high-end home cinema and music systems. As Lyngdorf Audio’s most powerful amplifier, it is built to deliver substantial output with the control, stability and refinement needed for demanding speaker systems.
What makes the MXA-8400 especially appealing is the way it combines very high power with a clean, modern installation-friendly design. Using Lyngdorf’s implementation of Purifi EIGENTAKT technology together with its PowerPerfect power supply, it is engineered to stay stable across the full audio range and across a wide variety of speaker loads, even when multiple channels are working hard at the same time.
The MXA-8400 is also highly flexible for bigger systems. All eight channels can be used individually, or pairs of channels can be bridged for higher-output applications. That makes it an excellent choice for customers building premium surround systems, immersive cinema rooms or large-scale active speaker setups where power, reliability and low noise all matter.
Key Benefits
- High-performance 8-channel power amplifier for serious home cinema and multichannel music systems
- 8 x 400 watts into 4 ohms delivers strong drive and headroom across all channels
- Purifi EIGENTAKT technology is designed for extremely low distortion and highly stable performance
- PowerPerfect power supply helps maintain output and control even with all channels driven
- Bridgeable channel pairs allow up to 4 x 800 watts into 8 ohms for more demanding setups
- Fan-free design keeps operation quieter and more suitable for premium listening rooms
- Balanced XLR inputs and speakON outputs suit serious custom install and rack-based systems
- Excellent option for immersive cinema rooms, large multichannel systems and high-performance distributed amplification
- Designed, assembled and 24-hour tested in Denmark
- 2 years manufacturers' warranty
Technical Specifications
Amplifier Design
- Product Type: 8-channel power amplifier
- Amplifier Technology: Purifi EIGENTAKT with EIGENTAKT ErrorCorrection
- Power Supply: Lyngdorf PowerPerfect power supply
- PCB Design: 4-layer main PCB optimised for signal purity and grounding
- Cooling: Fan-free chassis design
Power & Performance
- Power Rating: 8 x 400 W @ 4 Ohm (2-channel mode)
- Power Rating: 8 x 200 W @ 8 Ohm (2-channel mode)
- Bridge Mode Power Rating: 4 x 800 W @ 8 Ohm
- Power Rating at Rated THD: 8 x 340 W @ 4 Ohm, 8 x 200 W @ 8 Ohm
- Frequency Response: ±0.1 dB (ref. 20 Hz - 20 kHz)
- THD: 0.001% @ 200 W, 8 Ohm / 340 W, 4 Ohm, 20 Hz - 20 kHz
- Signal-to-Noise Ratio: 128 dB (A-weighted ref. rated power, Low Sensitivity mode)
- Damping Factor: >1200 (8 Ohm, 20 Hz - 1 kHz)
- Max Output Current per Channel: 25 A
- Max Output Voltage per Channel: 58 V peak (2-channel mode), 116 V peak (bridge mode)
Inputs & Outputs
- Audio Inputs: 8 x XLR analogue inputs
- Audio Outputs: 8 x Neutrik speakON outputs
- Input Impedance: 10 kOhm
- Input Sensitivity: 2 V (High Sensitivity mode), 6 V (Low Sensitivity mode)
- Gain: 26.1 dB High Sensitivity / 16.6 dB Low Sensitivity in 2-channel mode
- Trigger Connections: 12 V trigger in / out
- Auto-Sense: Yes
Power Consumption
- Idle Power Consumption: 29 W
- Standby Power Consumption: <0.5 W
- Time to Standby: 15 minutes with no input signal in Low Power mode
Colour Options
- Matte black
Dimensions & Weight
- Dimensions (W × H × D): 450 x 145 x 349 mm
- Weight: 10.3 kg
What’s in the Box
- Lyngdorf MXA-8400 8-channel power amplifier
- Power cord
- Owner's manual
