karlsonklam
Head-Fier
- Joined
- Jul 8, 2012
- Posts
- 70
- Likes
- 12
I have S.M.S.L.'s TPA6120A2 based amp and consider it a neutral and excellent value but seems to be lacking on voltage swing into 250 ohm Koss 4aat cans. Using a well - recorded drumkit,Tthis amp can't reach the eye-blink level peak on the snare which comes easy with lower impedance headphones. One way to improve the impedance match would be to try say some ~$12 Edcor 600:150 ohm matching transformers - the 78 ohm dcr of the 600 ohm winding might make things mushy.
since I don't have an easy way to monitor the peak to peak voltages going to the cans, this is a subjective matter. - -My Zhaolu's built-in headamp burnt up trying to drive vintage 250 ohm headphones.
seems like the very low impedance and Z 250 and up present challenges to little solid state amps.
since I don't have an easy way to monitor the peak to peak voltages going to the cans, this is a subjective matter. - -My Zhaolu's built-in headamp burnt up trying to drive vintage 250 ohm headphones.
seems like the very low impedance and Z 250 and up present challenges to little solid state amps.