@daveyf my KT150s are back in their boxes, nice, yet kept comparing. After the KT120s had 100-200hrs on them, have not wanted to remove them. My first impressions were off for sure, and they just needed time to settle in. Very nice.
KT150 to KT120..or KT120 to KT150
Has anyone here gone from using KT120's in their amp to KT150's and preferred the KT150 tube...conversely has anyone gone from KT150's in their amp to KT120's and preferred the KT120's?
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@decooney Remind me again as to what amp you are using with these tubes. |
@daveyf two Quicksilver Mono 120 tube amplifiers with upgraded Mundorf EVO Silver Gold (non oil) capacitors, Premium Psvane MKII 12AU7 and 12AT7 small signal tubes paired with Tung Sol KT120 output tubes. Combo works nicely. |
@decooney No doubt that combo works well. Question is whether these amps were originally designed for KT120’s or KT150’s?...my money says KT120’s, which would lead to your observations. |
@daveyf these are the QS Mono 120s are 120watt amps designed and sold with KT150s new as stock. KT120s are doable yet I cannot run KT88s or EL34s in these amps. Will burn them up, according to the designer. These have the big transformers and power caps in these particular amps, very transparent too.. They do run higher plate voltage in these. KT150s are super linear in these amps. I sort yearn for a throwback KT88 type sound every once in a while, so the KT120s put me back closer to that when I swap them in. KT150s and KT120s only in these. Already had quad spares thank goodness. |
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