KASPER KMA-8240-Z5

Product overview

The KASPER KMA-8240-Z5 is a 240 W five-zone mixer amplifier with a built-in MP3 player, FM tuner and Bluetooth: an all-in-one solution for music and announcements in up to five separate areas.

Designed for professional audio distribution, the KMA-8240-Z5 drives 100 V and 70 V loudspeaker lines or 4-16 Ω loudspeakers and gives each of its five 100 V zone outputs its own level control on the front panel. Three microphone inputs with priority muting, two AUX inputs, USB and SD playback, an FM tuner and Bluetooth cover every source, while bass and treble controls, an LED level meter and protection against overload, short circuit and high temperature make daily use simple and safe. It is ideal for retail, schools, restaurants, offices and public address systems.

Key features

• 240 W rated output for 100 V (39 Ω), 70 V (19 Ω) or low impedance 4-16 Ω
• 5 zone outputs (100 V), each with its own level control
• Built-in Bluetooth, FM tuner, USB and SD playback
• 3 MIC inputs with priority muting: MIC1 overrides other input signals at 0-30 dB
• 2 AUX inputs (RCA) and a 0.775 V line output
• Bass ±10 dB at 100 Hz and treble ±10 dB at 12 kHz
• LED level indicator and power indicator
• Protection: AC fuse, overload, short circuit and high temperature
• DC 12 V cooling fan

Five zones from one amplifier

Wire each area's 100 V loudspeaker line to its own ZONE OUTPUT and set its level with the ZONE 1-5 knobs on the front: louder music on the shop floor, quieter at the counter, or a zone turned off when an area is closed. The main speaker terminals also offer 70 V and 4-16 Ω outputs.

Every source built in

The built-in player plays music from USB and SD, receives FM radio through the FM ANT input and streams from a phone over Bluetooth. Two RCA AUX inputs take an external player, and the line output feeds another amplifier or a recorder.

Announcements always come first

Three microphone inputs, one of them on the front panel, have their own level controls. When someone speaks on MIC1, the priority muting lowers the other input signals by 0 to 30 dB, so announcements are always heard over the background music.

In the box

• KMA-8240-Z5 mixer amplifier
• Power cord (3 x 0.75 mm², 1.5 m)

KASPER KMA-8240-Z5: frequently asked questions

How many zones does the KMA-8240-Z5 have?

Five 100 V zone outputs, each with its own level control on the front panel.

Which loudspeakers can it drive?

100 V lines (39 Ω), 70 V lines (19 Ω) or low-impedance loudspeakers of 4-16 Ω, with 240 W rated output power.

Which music sources are built in?

An MP3 player with USB and SD slots, an FM tuner and Bluetooth, plus two RCA AUX inputs.

Does it have microphone priority?

Yes. MIC1 overrides the other input signals at 0-30 dB, so announcements are heard over the music.

Where can I buy the KASPER KMA-8240-Z5 in India?

The KASPER KMA-8240-Z5 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: Retail store with five areas

Music and announcements for a shop with separate departments.

Connections

Setup

1. Wire each department's 100 V speaker line to its own zone output.
2. Play music from Bluetooth, USB or SD and set its level with AUX1/MP3.
3. Set MASTER, then each ZONE knob for the level wanted in that area.
4. Use MIC1 for announcements: the music is lowered automatically.

Tip: Turn a ZONE knob to OFF to silence an area that is closed.

Workflow 2: School bells and announcements

Announcements to classrooms, corridors and grounds.

Connections

Setup

1. Group the speakers by area and wire each group to a zone.
2. Set the microphone levels with MIC1-MIC3.
3. Set each zone's level on the front.
4. Speak on MIC1 for priority announcements.

Tip: The LED meter helps keep levels below CLIP.

Workflow 3: Restaurant: dining room, bar and terrace

Different music levels in each part of the venue.

Connections

Setup

1. Wire each area to its own zone.
2. Choose the music source and set its level.
3. Set lower levels for dining and higher for the bar.
4. Shape the sound with BASS and TREBLE.

Tip: The FM tuner gives a quick alternative music source.

Workflow 4: Office paging and background music

Paging and soft music for floors and meeting areas.

Connections

Setup

1. Wire each floor to a zone output.
2. Play background music from USB or SD.
3. Set zone levels for open areas and meeting rooms.
4. Use MIC1 for paging with priority muting.

Tip: MIC1 overrides other input signals at 0-30 dB, so paging is heard over the music.

Workflow 5: Low-impedance speakers for a small hall

A hall or showroom with 4-16 Ω loudspeakers.

Connections

Setup

1. Connect the loudspeakers to the 4-16 Ω terminals.
2. Set MIC and AUX levels.
3. Raise MASTER gradually.
4. Adjust BASS and TREBLE.

Tip: Keep the total load within the 240 W rated output.

Workflow 6: Recording or extending the system

Send the programme to a recorder or another amplifier.

Connections

Setup

1. Connect the LINE OUTPUT to the recorder or amplifier input.
2. Set the sources and levels as usual.
3. Check the level on the connected device (0.775 V, 0 dBV).
4. Use the second amplifier for extra areas or power.

Tip: The line output level is 0.775 V (0 dBV).