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No sound 

Is the power cable plugged into a socket? 

Is the power switch set to “ON”? 

Does LED on the front panel light up ? 

Is there anything wrong with the connecting cable? 

If the unit is connected to a pre-amplifier or integrated amplifier, is the SOURCE selector 

switch set to the correct position?  
Refer to the instruction manual of your amplifier. 

 

Sound is Distorted:

 

Is the power voltage normal? 

Too high volume level may cause distortion.  

Too high volume is bad for your devices and health. 

In rare cases, when a device connected to a terminals 

(

amplifier etc.

)

 is not operating, 

input impedance extremely goes down and signals from an audio player device may be 
distorted.   
In this case, unplug a device connected to PARALLEL OUT terminals. 
The distortion does not occur if the volume of SRM-500T 

(

or other STAX SRM series

)

 is 

turned to zero. 

 

Unbalanced sound between right and left channel: 

Is the input signal normal? 

Are there any contact failures of a cable? 

● 

When raising volume slowly from zero, sound may not start at the same time from left and 

right channels. This is normal and not a failure. 

Correct this unbalance by adjusting each section of the volume knob. 

 

Hum noise is heard 

Is a input terminal properly connected? 

Hum noises may occur when a grounding wire comes off. 

In case that “boon” hum noises are emitted, connect a grounding wire to a ground termi-

nal or metal parts of other devices.  
Also you can connect a grounding wire to metal parts of aluminum sash windows. 

Are there any contact failures? 

Because the main material of the chassis is nonmagnetic aluminum alloy, multiple devices 

may induce hum noises.  
Are devices containing large transformers or microwaves near the unit?  
Keep distance between the devices. 

Hum noises may be emitted for instance just after the power is turned off.  

This is not a breakdown. 

 
If there are any troubles and breakdowns, please contact the dealer from which it was pur-
chased or a nearest distributor. 

 

6. Troubleshooting 

-6-

 

Summary of Contents for SRM-500T

Page 1: ...M 500T contains high voltage circuitry It is dangerous to disassemble or to remodel it Please observe Don ts R Thank you for purchasing STAX Driver Unit for Earspeakers SRM 500T Please read this instr...

Page 2: ...cription first Do not place the unit in the places as below It may cause injury or breakdowns Tilted places or places exposed to vibration shocks or direct sunlight Wet humid or dusty places Places wi...

Page 3: ...ght volume balance with this knob If the volume is not enough using a REC OUT terminal of a pre amplifier or integrated amplifier connect to a PRE OUT terminal Another way to connect To connect to a a...

Page 4: ...unit Unplug the cable when a device connected to PARALLEL OUT terminals is not used In rare cases when a device connected to PARALLEL OUT terminals is not operating playback signals may be distorted...

Page 5: ...udio devices Connect to current system In case of using loud speakers XLR Connect Confirm this switch position Use PARALLEL OUT terminals Connect the unit to REC OUT or PRE OUT of a pre amplifier or a...

Page 6: ...nel Is the input signal normal Are there any contact failures of a cable When raising volume slowly from zero sound may not start at the same time from left and right channels This is normal and not a...

Page 7: ...4Kg Others equipped with through output RCA Vacuum tube 6CG7 6FQ7 x 2 Specifications and appearance are subject to change without notice for improvement This product is adjusted to mains voltage depen...

Page 8: ...P No 80466 10106 R STAX LIMITED Tel 81 49 293 1891 Fax 81 49 293 1892 URL https stax international com 3798 1 Shimonanbata Fujimi shi Saitama ken Japan 354 0004 C Printed in Japan 21 02 1K MP STAX LTD...

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