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There are high-voltage dangerous sections inside the unit. Do not remove 

the top cover or the bottom plate, and avoid using the unit in humid or 

dusty places. 

 

Since the driver unit generates heat, do not cover the venting holes on the 

top, side and bottom plates. Put it in an airy place if possible, and when 

installing it in a rack etc., keep 5cm or more opening above the upper and 

side surface of the unit. Do not use the unit with side panel down. 

 

Since the degree of adhesion of foot is very high, be careful when moving 

the unit. 

 

Take care when "LEVEL CONTROL" is in "EXTERNAL" position, because 

in this position the volume of this unit is bypassed and the volume is not 

controlled. 

 

Since large volume may come out, do not switch "LEVEL CONTROL" to 

"EXTERNAL" when wearing your earspeaker. 

 

When the option card is not equipped, do not remove the cover of the op-

tional slot. Using the unit without the slot cover may cause failure of the 

unit. 

 

Noise such as hum may come out when SOURCE is switched to LINE4 

with no option card  equipped. This is normal and not a failure. 

The SRM-T8000 is an exclusive driver unit (power amplifier) with 4-input 

selector developed in order to ideally drive STAX electrostatic earspeakers. 

 

The unit incorporates a high-quality double-axis 4-gang volume controller 

along with XLR connectors that can connect to all kinds of analog line-level 

output terminals. 

 

The hybrid amplifier configuration with strictly selected low-noise 6922 dual 

triode tube for the first stage and high-current emitter-follower at output 

stage brings out the maximum performance of earspeakers.  Its natural un-

colored sound has been realized by eliminating the coupling capacitor that 

affects sound quality. 

 

The balanced amplifier configuration with low-noise dual triode tube elimi-

nated transformer or inverting amplifier after the XLR balanced input termi-

nal. 

 

Non-magnetic chassis construction is employed, and only the carefully se-

lected electronic components free from aged deterioration are used taking 

both their sonic quality and performance into consideration. 

 

The SRM-T8000 is equipped with “direct mode” function, enabling it to con-

nect to preamplifier output terminal or to use your favorite attenuator. Also, 

two RCA inputs and XLR balanced input can bypass the incorporated vol-

ume controller ( Line 4 input does not have this function). 

 

Optional extension slot (LINE4) is provided for future use. Refer to the in-

struction manual of this optional card. 

 

The foot rubber of the SRM-T8000 features fire-resistant ultra-hard high-

grip type and vibration-proof properties. So the unit hardly slides when 

placed on a table etc. Please lift it up when you move it.

 

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Summary of Contents for SRM-T8000

Page 1: ...The SRM T8000 contains high voltage circuitry It is dangerous to disassemble or to remodel it Please observe Don ts This product contains high voltage circuitry To avoid dangerous electric shock do no...

Page 2: ...or attenuator Block diagram Troubleshooting Specifications Care and Cleaning Accessories 2 3 4 5 6 7 8 9 10 Page Thank you very much for purchasing the SRM T8000 driver unit for STAX earspeakers Plea...

Page 3: ...ance stove heater etc Do not put earspeaker or any other object on the unit It may cover the venting holes and cause heat generation resulting in unit failure Dropping or giving a shock should be avoi...

Page 4: ...a high quality double axis 4 gang volume controller along with XLR connectors that can connect to all kinds of analog line level output terminals The hybrid amplifier configuration with strictly selec...

Page 5: ...r 1 INTERNAL Green LED lights up and level can be controlled by inter nal volume 2 MUTE Green Red LED blinks and mutes sound in order to urge you to pay attention before using external volume 3 EXTERN...

Page 6: ...et to zero VACUUM TUBE INPUT DRIVER UNIT FOR EARSPEAKERS SRM T8000 DO NOT OPEN RISK OF ELECTRIC SHOCK CAUTION PARALLEL OUT LINE1 LINE2 LINE4 LINE3 L L R R R L XLR INPUT STAX LTD MADE IN JAPAN SERIAL N...

Page 7: ...s connectable using a commercially available stereo mini plug RCA plug conversion cable or a conversion plug First set the volume of source equipment to the usual headphone listening level and then ad...

Page 8: ...EVEL CONTROL knob to EXTERNAL When using preamplifier or attenuator LINE output equipments such as DVD SACD CD BS TAPE VIDEO etc Connect the driver unit to PRE OUT terminal of amplifier or attenuator...

Page 9: ...transformer POWER SUPPLY for MAIN PCB CONTROL PCB and OPTION SLOT BIAS 6922 Double triode High current emitter follower output stage PARALLEL OUT LINE 1 RCA LINE 3 XLR LINE 2 RCA LINE 4 OPTION SLOT L...

Page 10: ...owered off Unbalanced sound between right and left channel Are input signals all right Level difference between channels can be corrected by adjusting double axis volume knobs independently When raisi...

Page 11: ...nput impedance 50k RCA input 50k x 2 XLR input Maximum output voltage 470Vrms 1330Vp p 1kHz Bias voltage 580V DC Mains voltage AC120V AC220 AC230 AC240 50 60Hz depending on your country s voltage Powe...

Page 12: ...Printed in Japan 2017 05 MP STAX C STAX LIMITED Tel 81 49 293 1891 Fax 81 49 293 1892 URL www stax co jp 3798 1 Shimonanbata Fujimi shi Saitama ken Japan 354 0004 R...

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