Bristol Sound Systems Ltd

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Telephone  077 14 24 54 09


In the rare event that something has to be returned we allow 30 days from receipt of the purchased item for the purchaser to contact us before returning. Where possible new items will be replaced not repaired if faulty within 28 days. Items returned which are not faulty or returned as not wanted/wrongly ordered will be charged a 20% restocking fee. Items must be returned in the condition as dispatched with all original packing. Goods must be returned insured and carriage paid at the buyers expense. Used items are not normally accepted for return except if faulty on delivery. Consumables such as Styli, batteries etc will not be accepted for return

Unfortunately due to pressure of work the web site is a bit out of date

Most of the prices on the site  will not have changed.

Please call for up to date prices and availability  


19" rackmount 2U power amplifiers with dual fan cooling and class H architecture for safe, reliable power delivery. Balanced inputs via 6.3mm jack or XLR sockets, speaker outputs on 2 SPK connectors or 4mm binding posts. High power output stable down to 2 Ohms load per side can also be bridged mono to 4 Ohms. Switchable ground lift, bridge mode and clip limiter.

Power supply                      


Input impedance                

Frequency response          

Total harmonic distortion  

Slew rate                           

Damping factor                 



PLX-Series 2 channel power amplifier 172-214

£282.86 Excl VAT  (£339.43 incl)

Normally available to order with short delivery time

240Vac, 50Hz (IEC)

Level channel 1, level channel 2, ground, mode, clip limiter

20k ohms

5Hz - 50kHz




Short-circuit, overload, D.C. and thermal protect

482 x 453 x 88mm (2U)

@ 2 Ohms           

@ 4 Ohms           

@ 8 Ohms           

@ 4 Ohms           

@ 8 ohms  

Power RMS     

Power RMS    

Power RMS    

Power RMS bridge  

Power RMS bridge  



2 x 1000W

2 x 700W

2 x 400W




This item will be dispatched by Hermes.

Express delivery available see ‘Contact Us’ page

 This item will be dispatched by Hermes.

Express delivery available see ‘Contact Us’ page

Adastra 172-031 2 channel power amplifier

Available from stock       £60.00  Excl VAT  (£72.00 incl)     


A range of stereo power amplifiers designed and built to exacting standards that are ideal for mobile DJs and installations.


Front panel colour  

Fuse rating     

Power max. :  

Power rms

Power rms :  



Power supply  

Frequency response  

Input connectors  

Input sensitivity  

Minimum impedance  

Output connectors  

S/N ratio  


2 x 120W, Black


T2A (240V) / T4A (110V)

4 Ohms 2 x 120W

4 Ohms 2 x 60W

8 Ohms 2 x 40W

482 x 240 x 88mm (2U)


230Vac, 50Hz (IEC)

20Hz - 20kHz

RCA Phono/6.3mm jack

775mV, 10k ohms

4 ohms

SPK/Jack/Binding Post



SORRY SOLD OUT  New stock due 10th April