Shipping from $13.50. Free Express Delivery on orders over $1,000 (T&C’s apply)

inDESIGN BM4 4 Channel Strip Mixer/Pre-amplifier

IN-BM4

Only 1 item left in stock!

The inDESIGN BM 4 is a high quality mixer for commercial and industrial audio applications.

The BM 4 features 4 Mic/line inputs with microphone input 1 featuring a mute so that a Microphone on this channel will mute all other inputs, useful for paging announcements. The BM 4 provides a mono output. There are 4 alarm triggers: CHIME, ALERT, BELL and EVAC, connected via external mounted screw terminals.

The mixer is part of inDESIGN’s Install Series, which also includes mixer amplifiers and power amplifiers. These units provide excellent features and value.

Warranty: 5 Years

 

Mic Inputs 

  • Connectors (Mic/Line): Euro Block / RCA
  • Impedance (Mic/Line): 1kΩ / 13.6kΩ
  • Gain (Mic/Line): 20dB to 50dB / 0dB to 20dB
  • Max Input Level (Mic/Line): -28dBu / +10dBu
  • Frequency Response: 20Hz – 20kHz
  • S/N: -86dBu
  • THD+N: 0.3% (20Hz – 20kHz, +4dBu)
  • Phantom Power: 48V
  • Tone Frequency/Control Range: 100Hz / 10kHz
     

Balanced Outputs 

  • Output Impedance (Mic/Line): 51.1Ω / 150Ω
  • Max. Output (Mic/Line): -16dBu / +24dBu
  • S/N: 90dB
  • THD+N: 0.01% (20Hz – 20kHz, +4dBu)

 

  • Crosstalk: -75dB @ 1kHz
  • Mains Voltage: 240 VAC, 50/60Hz, 10 Watts

 
Unit 

  • Construction: All Steel
  • Size: 4.4cm x 48.3cm x 16cm
  • Weight: 1.8kg

 

Note: 0 dBu = 0.775 Vrms

To download the BM4 User Manual please click here.

Order weight is calculated on whichever of the dead (actual) or volumetric weight is the greatest. As of 21/5/26, shipping is capped for orders up to 15 kg to most areas.

For orders under $100, Standard Postage is $13.50.

For orders from $100 to $1,000, Express Shipping is $22.

Orders over $1,000 ship for free*.

Express Shipping covers one delivery attempt, so please provide an address where someone is available to sign for courier delivery between 9 am and 5 pm weekdays. You may request that the parcel be left in a safe place, but if anything happens to the parcel, neither we nor the courier company can be held responsible. Work addresses are a great delivery option — if using a work address, please include the business name.

Vinyl records are packed in rigid LP mailers with corner protection and internal padding to prevent damage in transit.

For full details, please see our Shipping Details page.

* Free or capped shipping does not apply to Australian remote island locations, some mainland remote locations (outside Darwin NT and Perth WA metro areas), or destinations outside Australia. If you are unsure whether your address qualifies, please contact us before placing an order.

Got questions about ordering? Whether it's pricing, payment options, delivery times, or warranty details — we've got you covered.

Head to our FAQ page for quick answers to the most common queries.


SUBSCRIBE