For information.
You can listen directly, to the Stax SR-009 headphones, plugged directly into the amplifier Audiovalve RKV mk2, by bypassing the transformator amplifier input Wee (1:50 ratio) but keeping the bias voltage of 580 Volts of the Wee on housing on the 5th pin of theheadphone output jack Wee.
Advantage: undeniable increased transparency and presence.
Inconveniant: the listening level is limited below 100 dB SPL (for a maximum output level of the RKV amplifier limited to 80 volts on OTL mode).
The final level of quality for headphones on the 009 with the RKV no output transformers (no impedancer) or input (bypassing the transformer amplification of Wee) may exceed that of the Electra !
http://www.head-fi.org/t/681814/amplifiers-shootout-for-stax-009-eddie-current-electra-audiovalve-rkv-wooaudio-wee-stax-srm727-srm007t2/30#post_9874692
You can listen directly, to the Stax SR-009 headphones, plugged directly into the amplifier Audiovalve RKV mk2, by bypassing the transformator amplifier input Wee (1:50 ratio) but keeping the bias voltage of 580 Volts of the Wee on housing on the 5th pin of theheadphone output jack Wee.
Advantage: undeniable increased transparency and presence.
Inconveniant: the listening level is limited below 100 dB SPL (for a maximum output level of the RKV amplifier limited to 80 volts on OTL mode).
The final level of quality for headphones on the 009 with the RKV no output transformers (no impedancer) or input (bypassing the transformer amplification of Wee) may exceed that of the Electra !
http://www.head-fi.org/t/681814/amplifiers-shootout-for-stax-009-eddie-current-electra-audiovalve-rkv-wooaudio-wee-stax-srm727-srm007t2/30#post_9874692