• Hypex NC400 Mono Block Amplifier - Unassembled DIY Kit


    On Backorder - Expected Ship Date is February 1, 2022

    Hypex NC400 Mono Block Amplifier - Unassembled DIY Kit

    In Stock

    Same Business Day Shipping

    U.S. Domestic Orders Ship FedEx - Please Contact Us for International Rates

    The Hypex NC400 Mono Block provides an ultra high-end amplifier for a fraction of the price of comparable units. The amplifier comes unassembled, as a DIY kit. The Hypex NC400 Mono Block also can be assembled and tested by Deer Creek Audio (select Assembly and Test Option above).


    • NC400 amplifier module

    • Transparent, fully discrete input circuitry

    • HxR style regulators on board

    • Differential inputs with high common-mode impedance

    • Overcurrent protection

    • Supply overvoltage/undervoltage protection on all rails

    • 2Ω stable for use with a wide range of speakers


    Output power

    • 200W @ 8Ω < 1% THD+N

    • 400W @ 4Ω < 1% THD+N

    • 580W @ 2Ω < 1% THD+N


    • 0.01% @ 20Hz - 20kHz up to 225W

    Signal to Noise Ratio

    • 120db @ 22.5kHz BW

    Power Bandwidth

    • min 35kHz

    Voltage Gain

    • 25.3 - 26.3dB

    Frequency Response

    • 0 - 50kHz

    Minimum Load Impedance

    • min 2Ω

    Output Impedance

    • 2.5mΩ f < 16kHz max

    • 35mΩ f < 20kHz min

    Input Connector

    • Stereo XLR

    Output Connector

    • 3-way binding post

    Line input power

    • Low Line input voltage: 100 - 120Vac ±10%

    • High Line input voltage: 200 - 240Vac ±10%

    • Line input frequency:  47 - 63Hz

    • Connector:  3-pin IEC 250Vac, 10A male

    Special thanks to Amirm at the Audio Science Review for the above performance plots.

    What’s Included

    • Hypex DIY mono case

    • NC400

    • SMPS600

    • Chassis

    • Cables


    • 200 mm (width)

    • 79 mm (height)

    • 280 mm (depth)

    Recommended Accessories


    • U.S. technical support through Deer Creek Audio

    • Installation guide and phone support

    • Deer Creek Audio is an authorized Hypex dealer

    Warranty Terms

    This product is warranted to be free from defects in materials and workmanship for a period of one year from invoice. Warranty does not cover failure of the product due to incorrect connection or installation, improper or undocumented use, unauthorized servicing, modification or alteration of the unit in any way, or any usage outside of that recommended in the product manual. The customer provides return shipping to Deer Creek Audio. Deer Creek Audio is an authorized Hypex dealer.


    Orders received by 2 PM MT are shipped the same business day. U.S. mainland orders ship FedEx for $19.95. International customers, please contact Deer Creek Audio for shipping rates.

    User Links

    Hypex NC400 Mono Kit
    Hypex NC400 Top View
    Hypex NC400 Amplifier Module Datasheet
    Audio Science Review of Hypex NC400

    Podcasts, in collaboration with WNY Media Works

    Deer Creek Audio:  Hypex Power Amps