otis
Responses from otis
| How can I ship to Canada so Buyer pays no Duty? The only way is to list value as less than $50 and declare as gift or mark as "commercial sample" with no value. Either way the item cannot be insured and must use good old U.S./Canada post.All tubes I buy have been shipped this way with no proble... | |
| Preamp vs. headphone amp I can only speak to the headphone amp incorporated in the Sonic Frontier Line series preamps with Headroom circuit.I am driving a pair of Grado RS 1's easily. An exceptional combination. | |
| Tube problems 6922 Thanks for your reply, one thing I forgot to mention is plate voltage. The tester has two ways to test, with plate of @ 90v and @ 180v, The preamp runs at from 115 to 137v on the plate. The drift shows most often at 180v, and to a lesser degree in... | |
| Matching pre amp tubes? I have found that there is a need for matching gain of preamp tubes. I ended up with 6922's and 12au7's that were supposed to be matched and subsequently threw out the L&R balance so much that I was questioning my hearing for a while ... kept ... | |
| Best Used Tube Preamp (under $750)? NEW p-3 gives you single stage class A hand wired(no pc board) in silver wireing with alps attenuator, Hovland Musicaps, tube standby/instant -on feature,all in a half rack unique format... check out mine or any others as an option at this price p... | |
| Audio Research vs Sonic Frontiers Hi Craig: What tube compliment do you suggest, Kevin Deal says he can really make this unit sing but won't say unless you buy from him. Im thinking Brimar Otis | |
| PASSIVE Preamp and LIFELESSNESS? An experiment to try that will indicate if your source puts out enough current to drive the input stage of the amplifier is to connect direct to the amp with nothing in between and begin with source material that is reasonably quiet. This must be ... | |
| Audio Research vs Sonic Frontiers Hi Guys: Thanks much for your opinions to date. To clarify: I have to go with balanced connections which is why I have arrived at these two choices. Listening would indeed be the best route however it is not practical as I am buying over the inter... | |
| Good quality KT88 power tubes? To defend GA, they put significant effort in burning in and matching their tubes but they are still overpriced. | |
| Harmonic Recovery "Boxes" Have tried them and they seem to help in most transistor applications but damage tube sound. Current is everything in audio. These seem simply to increase current to better drive the next amplification stage of the audio chain. Sadly, current seem... | |
| 6550 vs KT88 vs KT90 Well everyone is right so far. Confused? You should be. The basics. The KT 90 IS the same tube as the GA KT99A, thought to be a wonderful tube. The 90 provides about 15% more output power than a KT 88(more headroom). It also seems to extend the ba... |