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Studiomaster GX15M Passive Speaker Cabinet

Availability: In stock

Only 5 left


Quick Overview

The GX range sets a new standard in loudspeaker performance, portability and cost. The range comprises 10 models, 5 active (powered) and 5 passive (unpowered). 



The GX range sets a new standard in loudspeaker performance, portability and cost. The range comprises 10 models, 5 active (powered) and 5 passive (unpowered). 

Both types feature 10”, 12” & 15” full range cabinets and a 12” & 15” stage monitor. The strong trapezoidal shaped wooden cabinets are black carpet covered to give a stylish, durable finish while keeping weight to a minimum. All full range cabinets contain a 35mm speaker pole socket for stand mounting and all models have tough slotted handles, making transportation easy.

The passive cabinets have a pair of industry standard 4 pole speaker connectors for reliable operation and the flexibility to connect to additional cabinets. 

The active range (denoted by the ‘A’ suffix in the model name) use a reliable on board bipolar amplifier matched to the custom designed loudspeaker components producing high quality sound at all volume levels. The comprehensive preamplifier section caters for just about any application:

Input one is microphone level with its own gain control and a choice of xlr or jack socket connectors.

Input two is for line level equipment (MP3/CD/keyboard, external mixer etc) with balanced XLR & RCA phono connectors and a level control.
A line output facility has a level control and balanced XLR & jack connectors. This is ideal for linking to additional active cabinets or connecting to a recording device.
The three band EQ comprises HI, MID and LO controls 

Finally the master level control lets you set the volume of the GX with a PEAK led showing when signals are getting too hot!
An unusual feature of the active GX range is the ability to power an extra passive GX cabinet. This doubles the flexibility of the system letting you scale your PA to the venue size or adding additional speakers as and when funds are available increasing overall power. 

So, for example, your PA could start with just a pair of GX15A active cabinets. When you start playing bigger gigs buy a pair of GX15 passive cabinets and power them from the GX15As. 

Facts & Features






  • Low cost full range speaker system
  • GX10/12 and 15 designed as useful trapezoidal enclosures
  • Durable carpet covered enclosures


  GX10 GX12 GX15 GX12M GX15M
Type 2 way 10" 2 way 12" 2 way 15" 12" monitor 15" monitor
Power handling (continuous) 150W  200W 250W 200W 250W
Power handling (peak) 600W 800W 1000W 800W 1000W
Nominal impedance 8 ohm 8 ohm 8 ohm 8 ohm 8 ohm
Profile Trapezoidal Trapezoidal Trapezoidal 30 deg wedge 30 deg wedge
Frequency response 80Hz - 18kHz 60Hz - 18kHz 40Hz - 18kHz 60Hz - 18kHz 40Hz - 18kHz
Maximum SPL 95dB 97dB 98dB 97dB 98dB
Crossover frequency 4kHz 4kHz 3kHz 4kHz 3kHz
Low frequency driver 10" cast chassis 12" cast chassis 15" cast chassis 12" cast chassis 15"cast chassis
High frequency driver peizo piezo 1.35" driver piezo 1.35" driver
Coverage (hxv) 90x60 degree 90x60 degree 90x60 degree 90x60 degree 90x60 degree
Connection (parallel wired) 2 x 4 pole industry standard sockets
35mm pole socket yes yes yes yes no
Width 350mm(13.8") 390mm(15.4") 470mm(18.5") 400mm(15.7") 680mm(26.8")
Height 520mm(20.5") 570mm(22.4") 710mm(28") 530mm(20.9") 470mm(18.5")
Depth 260mm(10.2") 290mm(11.4") 350mm(13.8") 370mm(14.6") 350mm(13.8")
Net 10kg(22lb) 16kg(35.2lb) 21kg(46.2lb) 16kg(35.2lb) 21kg(46.2lb)
Shipping 11.5kg(25.3lb) 17.5kg(38.5lb) 23kg(50.6lb) 17.5kg(38.5lb) 23kg(50.6lb)

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