- Frequency response (-0.5dB, 4 ohms)
- 20Hz to 20kHz
- Output power, single channel, 4 ohms (1% THD)
- 250W
- Maximum output, all channels driven
- 250W per channel at 4 ohms
- Dimensions (H x W x D)
- 88 x 427 x 398 mm
Price $4,710
Includes GST
Voted Australia's #1 Hi-Fi Retailer, Sound+Image Awards 2023. Family owned since 2010.
Hear the KASA 4-400M before you decide
Book a private listening session in Belrose and ask for the KASA 4-400M: we will confirm what we can set up for you. Or audition it at home.
Delivery and collection
Free standard shipping on orders of $300 or more within Australia, and $15 on smaller orders. Western Australia is quoted on request.
Pick up from our Belrose showroom: call ahead so we can have it ready.
Set-up and installation
Our team can deliver, install and set up your system, from speaker placement to a full cinema calibration. Ask us for a quote when you order.
Returns
Your rights under Australian Consumer Law always apply. Read our returns policy.
KEF KASA 4-400M
Specifications
- Model
- KASA 4-400M
- Product type
- Network DSP power amplifier
- Channels
- 4
- Output power, single channel, 4 ohms (1% THD)
- 250W
- Output power, single channel, 8 ohms (1% THD)
- 125W
- Bridged output, 4 ohms (1% THD)
- 500W
- Bridged output, 8 ohms (1% THD)
- 500W
- Maximum output, all channels driven
- 250W per channel at 4 ohms
- Frequency response (-0.5dB, 4 ohms)
- 20Hz to 20kHz
- THD+N
- <0.008% at 1kHz, 4 ohms, 10W
- Signal to noise ratio
- >95dB
- Amplifier class
- Class D with advanced GaN FET output stage
In detail
About the KASA 4-400M
Overview
The KEF KASA 4-400M is a four channel network DSP power amplifier for custom installation, multi-room and outdoor audio systems built around KEF architectural, landscape and in-wall speakers. It pairs Class D amplification using a GaN FET output stage with AKM Velvet Sound converters and KEF's Music Integrity Engine (MIE) DSP, which applies processing matched to each connected KEF speaker model.
KEF rates the KASA 4-400M at 250W per channel into 4 ohms with all four channels driven, or up to 500W per bridged pair. Setup, source routing and zone volume are handled from a web browser, and the 2U chassis is passively cooled for quiet operation in a residential rack.
Amplification and DSP
- Class D amplification with an advanced GaN FET output stage
- AKM Velvet Sound DAC and ADC converters
- KEF Music Integrity Engine (MIE) DSP with built-in profiles for KEF architectural and outdoor speakers, selected per connected model
- Each channel pair can run single-ended or bridged into 4 or 8 ohm loads
Control and Integration
- Browser-based setup and control, with no app or software to install
- Multi-source, multi-zone routing with independent DSP volume for each zone
- IP control drivers for smart home systems including Control4, Crestron and Savant
- Firmware and speaker profile updates delivered over the network
- Front panel status LEDs for power, signal, zone and volume
Connectivity and Installation
- Optical, coaxial and RCA analogue inputs, with buffered pass-through outputs
- 2U rack-mountable chassis with an aluminium front panel, rack ears included
- Silent passive cooling through a vented chassis, with no fan
- Universal 100-240VAC 50/60Hz power input, standby consumption under 2W
By appointment
Hear it in a real room.
Specifications only tell half the story. Book a private listening session in our Belrose showroom, bring the music you know best, and ask for the KASA 4-400M.
Voted Australia's #1 Hi-Fi Retailer, Sound+Image Awards 2023
- Family owned since 2010
- Talk to the people who will look after you.
- Listen in Belrose
- Private listening sessions, by appointment.
- Designed and installed
- Cinemas and listening rooms by our own team. (02) 8088 3088
Pairs with the KASA 4-400M
Complete the system
More from KEF
Shop KEF- Pre-order
