


MZDL-K840 Classroom Power Amplifier
A 2 × 400 W power amplifier with a touch-operable LCD, Bluetooth, optical and coaxial inputs, and both RS-232 and infrared remote control. It is intended for auditoria and large teaching spaces that need high output and flexible source switching.
- 2 × 400 W at 8 Ω for large rooms and auditoria.
- Touch-operable LCD screen with driver-free USB control software.
- Bluetooth, optical, coaxial, microphone and line inputs.
Overview
Key features
- 2 × 400 W at 8 Ω for large rooms and auditoria.
- Touch-operable LCD screen with driver-free USB control software.
- Bluetooth, optical, coaxial, microphone and line inputs.
- Two speaker-column outputs accepting 4–16 Ω loads.
- RS-232 and infrared control can operate simultaneously.
- Optional Wi-Fi wireless control for installation commissioning.
The MZDL-K840 is a 2 × 400 W classroom and auditorium power amplifier with a touch-operable LCD, Bluetooth, optical and coaxial inputs, and both RS-232 and infrared remote control.
It can drive passive speakers directly or sit at the centre of a larger system with an infrared receiver, mixer and expansion sensors. Contact Seekika Audio for load, speaker and control integration advice.
What’s in the box
- MZDL-K840 amplifier
- Power cord
- Rack-mount hardware
- User guide
Specifications
Audio & wireless
| Frequency response | 20 Hz–20 kHz |
|---|
Power & charging
| Rated power | 2 × 400 W(8Ω) |
|---|
Connectivity & control
| Inputs | 2 × Mic in; 2 × line in; Bluetooth, 1 × optical fiber; 1 × coaxial; |
|---|---|
| Outputs | 2 × speaker columns (4Ω-16Ω); |
| Features | Touch-operable LCD screen, driver-free USB-operation software; WIFI wireless control (optional); Supports RS232 serial port control and infrared control simultaneously. |
Applications
Planning a classroom or campus project?
Share your floor plan and room schedule — we will recommend microphone coverage, speaker placement and kit configuration.
Frequently Asked Questions
Which rooms is the MZDL-K840 designed for?
The MZDL-K840 is typically installed in auditorium, lecture hall, campus, large classroom. Room size, ceiling height and speaker layout determine the final configuration — send us a floor plan and our team will recommend a layout.
What certifications and warranty are available for the MZDL-K840?
Seekika Audio supplies CE, RoHS and FCC compliance documentation for its classroom audio products. Classroom audio products carry a standard 2-year warranty against manufacturing defects, with extended coverage available on project orders.
- OEM / ODM customization
- CE, RoHS & FCC documentation
- System layout and commissioning support
- Reply within one business day

