Hi, im new in tubes.
Have just assebled a 2x16 watt AMP. Id like to use my stax headphones (electrec type) that are driven with speaker output.
Is that load ok for tube AMP? Or how do i calculate???
Thanks and sorry for the simpel question!!!
Best regards
D. Loncar
Have just assebled a 2x16 watt AMP. Id like to use my stax headphones (electrec type) that are driven with speaker output.
Is that load ok for tube AMP? Or how do i calculate???
Thanks and sorry for the simpel question!!!
Best regards
D. Loncar
Perhaps if you gave the schematic or model of the amp, and the model of the headphones, someone might know something.
16 watt sounds a bit high for headphones, maybe you should try a dummy load with a potential divider on the speaker out, that should keep the impedance but lower the power for headphones. but im not sure about the electret headphones, and how levels will affect them
Are you using an srd-7 adapter with the amp for the stax? If so you will be fine - its an easy load for the amp.
Your amp should power the headphones without a problem.
Be aware that the headphones can reproduce the audio accurately but they can't deliver high sound pressure levels.
Be aware that the headphones can reproduce the audio accurately but they can't deliver high sound pressure levels.
Thanx for the replies. Its these two:
Model 16LS Stereo Integrated Tube Amplifier
And
Googles billedresultat for http://i-cdn.apartmenttherapy.com/uimages/unplggd/031111SR40.jpg
Model 16LS Stereo Integrated Tube Amplifier
And
Googles billedresultat for http://i-cdn.apartmenttherapy.com/uimages/unplggd/031111SR40.jpg
Hi.
SR-40 are electret (electrostatic) headphones. In the black box that comes with the headphones (srd-7) there are two transformer, to provide the high voltage-low current needed to energize the hp, and it's an easy load for the amp.
If you need to go one (big) step beyond (apart from purchasing another Stax...) try this The Tube CAD Journal, Electrostatic Headphones
Even with the small SR-40 the sound is amazing! (and loud!)
Guido
SR-40 are electret (electrostatic) headphones. In the black box that comes with the headphones (srd-7) there are two transformer, to provide the high voltage-low current needed to energize the hp, and it's an easy load for the amp.
If you need to go one (big) step beyond (apart from purchasing another Stax...) try this The Tube CAD Journal, Electrostatic Headphones
Even with the small SR-40 the sound is amazing! (and loud!)
Guido
The transformers in the SRD-7 interface will provide the proper 8 ohm load for your amplifier. Hook it up and enjoy.
Or, at some point down the road, wind or find some appropriate transformers to replace the 8Ohm versions in your amp, and drive the headphones directly from the amp.
The transformers in your amp step down the voltage, and the transformers in the adaptor box, step it back up. Just to illustrate, let's say the step down ratio for the amp outputs is 10:1, and the step up ratio of the adaptor is 1:10, then, a single 1:1 transformer will replace both.
Sheldon
Question Stax SRD-7 adapter
Hi there,
Please if you could help with this:
As you say it's an easy load, please do you happen to know or estimate its input impedance?
Am in the same shoes trying to connect Stax Lambda via his adapter to a tube amp.
Many thanks
Sandor
Hi there,
Please if you could help with this:
As you say it's an easy load, please do you happen to know or estimate its input impedance?
Am in the same shoes trying to connect Stax Lambda via his adapter to a tube amp.
Many thanks
Sandor