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Studiomaster PAX Series 12" 150w Active Stage Monitor

IN STOCK - Available in Store to see TODAY!

  • Perfect entry into high quality stage monitoring
  • Perfectly angled for the performer
  • Speaker Out allows you to connect a passive PX speaker and drive it from the same internal amplifier.

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The PAX/PX series is the perfect entry into high quality stage monitoring… powerful, clear sound and great features.

The careful design of the the PAX/PX series mean they are perfectly angled for the performer, so you can hear what you need to while taking up less stage space, keeping the sound focused and reducing the sound picked up by the microphones on stage. A strong steel grille, hard wearing carpet finish and robust corner pieces all help the PAX/PX series stand up to life on the road.

Available in both active and passive models, with a choice of 10” or 12” speaker size.  All units feature custom designed low frequency drivers to give a clear sound even at high volume levels.

The PAX12+ has both balanced XLR and Jack inputs, both models feature a link output to allow multiple PAX monitors to be connected from one signal source allowing the whole band to hear. PAX12+ also benefits from a useful 3-band EQ for extra control, gain and level controls to get your sound perfect when connecting to the main PA system and a really useful variable active notch filter, which affects a narrow band of sound you can adjust to pick out just the frequency that is feeding back. This allows you to get your monitors much louder before they feed back.

To complete the flexibility of the PAX/PX series, there is a Speaker Out on the active PAX models allowing you to connect a passive PX speaker and drive it from the same internal amplifier, giving you different set-up options to suit your performance.


  • 12” custom designed high output speaker
  • 120 / 150W internal amplifier can be used to additionally power PX12
  • Built in active notch filter to reduce feedback
  • Balanced XLR mic and line inputs with link facility
  • Compact footprint with rugged grille for reliability
Tech Specs

Additional Information

Manufacturer Studiomaster
Speaker 12" Custom design high output
HF Unit High frequency tweeter
Finish Black carpet covering, corner protectors, feet, scoop handle
Power output @ 1% THD 120W @ 8ohms RMS
  150W @ 4ohms RMS (used with PX12+)
Distortion (amp) 0.008% (50W @ 8ohm)
Maximum SPL 116dB
Input impedance Mic : 6k ohms balanced
  Line : 33k ohms balanced
Input sensitivity Mic : -30dBu
  Line : -10dBu
Equalisation Hi : 12dB @ 5kHz Q=2
  Mid : 15dB @ 1.5kHz Q=0.9
  Lo : 12dB @ 90Hz Q=3.6
Notch filter -12dB @ 300Hz - 6kHz, Q=3.3, switchable with LED
Connection : Input Balanced XLR and jack, jack link out
Connection : Output Jack external speaker socket
Power requirements (voltage selector) 230V range +/-10% ~ 50/60Hz 4A Max
  115V range +/-10% ~ 50/60Hz 8A Max
Dimensions (wxhxd) 553mm(21.8") x 380mm(15") x 450mm(17.7")
Weight (net/shipping) 16kg(35.2lb) / 19kg(41.8lb)
Product Condition New
Delivery & Returns

We aim to ship all orders received before 2:00PM on the same day. Orders received later in the day or at the weekend will ship on the next working day. All orders over £100 ship with free next working day delivery with a one hour delivery window.

Orders over £49.99 but below £100 qualify for free shipping which generally takes 2-3 days to arrive or can be upgraded to express for a small charge.

Alternatively all orders can be collected from our Derby store by choosing Click & Collect at the checkout. Please note these details are for UK delivery only, non-mainland orders may take longer and/or incur an additional charge, for international orders please contact us.


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