Genelec 1234ACM Studio Monitor

The 1234AC is a smart main studio monitor for use in demanding film and post production work, where perf screen or hi-res LED displays are employed.

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Make accurate decisions

Designed for mixing stages and large control rooms, the directivity and SPL capability of the 1234AC is compatible with typical screen channels in commercial cinema, but with the higher performance required for professional monitoring. The 1234AC may be used in either horizontal or vertical orientation – thereby tailoring the LF directivity to both the room and the monitor placement – while precise on and off axis imaging allows you to make accurate mix decisions even when sitting outside the narrow sweet spot of most studio monitors.

Optimize for your room

The 1234AC tightly integrates with our GLM calibration application, which compensates for detrimental room influence, perf screen effects, and delay, regardless of whether you work with traditional or large immersive formats. GLM also builds complete monitoring systems so that the 1234AC can easily be combined with other types of Genelec smart monitors and subwoofers to deliver truly optimized reference monitoring – and material that translates perfectly.


125 dB

Amplifier Power

2 X 750 W Bass (Class D) + 400 W Midrange (Class D) + 250 W Treble (Class D)

Frequency Response

29 Hz – 21 kHz (“-6 dB”)

Accuracy of Frequency Response

± 2 dB (34 Hz – 20 kHz)

Driver Dimensions

2 x  305 mm Bass +  125 mm Midrange +  25 mm Treble (view in inches)


H 489 x W 1210 x D 412 mm, (view in inches)


79.5 kg / 175.3 lb


1 x XLR Analog Input

1 x XLR AES/EBU Input

1 x XLR AES/EBU Output

2 x RJ45 Control

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