People who are Irrationally Afraid of tube amps


Recently I've had a tube amp For Sale on this site. It's a well respected, great amp from a major mfg. I've owned it for 3 years, with absolutely no problems, only enjoyment. I'm only selling it because I sold the speakers I used it with, & my current speakers are a lot more power-hungry. And it's the 2nd tube amp I've owned, my first being a really early model VTL ST-85 that was several years old when I bought it, then I had it for 5 years, & the only problem I had in all that time was replacing a fuse once. And I know almost nothing about electronics, but I learned how to use a multi-meter & successfully biased & replaced tubes in both amps.

Here's the thing: Almost every person who has written to me about my amp for sale asks a zillion questions, you know the routine, e-mails back & forth, then finally says they are too freaked out at the possibility of replacing tubes someday to buy it, whining about the (relatively modest) expense, etc. (And my amp has new tubes!!). Now, these queries are from presumably experienced A'goners because most of them have a large no. of positive feedback ratings here. I mean, we're not dealing with the average shopper at Circuit City, presumably.

My questions are: 1. Why do experienced A'goners waste so much time shopping for tube gear if they're freaked out over the potential traumatic effect that replacing tubes may have on them someday? There's plenty of SS gear FS if that's what they want. 2. Why do many even relatively experienced audiophiles still believe in the "tube hassles" myth? 3. Are there no tube afficiandos who are willing to put up with a minor inconvience every few years?

I feel like putting a warning in the next ad I run for a tube amp: WARNING: THIS DEVICE CONTAINS HIGHLY VOLATILE "TUBES", WHICH MAY BLOW AT ANY SECOND & COULD DESTROY YOUR ENTIRE NEIGHBORHOOD! USE AT YOUR OWN PERIL, PREFERABLY IN A NON-POPULATED AREA. EVEN IF THEY DON'T KILL YOU, THE TRAUMA OF REPLACING THE "TUBES" SOMEDAY COULD REQUIRE YEARS OF PSYCHOTHERAPY, & MAY BANKRUPT YOU & YOUR ENTIRE FAMILY.

Well, at least that might discourage the "tire kickers". Now, if I could just afford those Cary 805C mono-blocs I've been wanting for years........& thanks for listening to my rant!
steveaudio
One reason some people I know invoke is that they are not so much afraid of tubes as confused by differing opinions as to which tubes are "best." I've seen a tube aficionados argue ad nauseum about which tubes (NOS vs. this brand vs. that brand) are best for such-and-such a piece of equipment. It's enought to give a novice a splitting headache.
I'm one of those that you talk about. Although I've never tire kicked a tube amp, I have thought about trying one occasionally. I've owned tube preamps, phono stges and cd players with no problems or complaints. However, tube amps do take tube problems up a notch, IMHO. I've been in this hobby over 25 years, and I'm afraid to try one, there, I said it. I've heard of the 'problems', and they do seem to be more likely to occur in a tube amp than a SS amp. Power tubes tend to cost more to replace than line stage tubes, and from what I've read over the years, are more likely to cause 'flame-outs'. Possibly even taking out equipment down stream, such as a speaker driver. Some, like myself, are streched as thin as we can finacially to get the best that we can, but cannot afford any kind of reliability issues. I buy everything used, most from Agon. If a tube flames out and takes out a driver, it could take months for me to afford to get my system up and running again, finacially. I don't have a second system, or spare parts (preamps, amps, etc) laying around. Now maybe I'm wrong and I should downgrade from BAT, Classe, and Threshold to Rotel and NAD so I can have money to afford second systems and spare parts, but that's my choice. To squeeze every last penny into one system. Reliability becomes much more important in a situation like this though.

Regards,
John
Wow, what a great forum. Everyone seems to be sincerely in touch with their feelings and yet so civilized. Is this really another Audiogon tube/solid state issue? Very refreshing. Well done ladies and gentlemen.
Steve:

Most of the outright failures I have experienced (aside from stupid abuse/misoperation) have been with SS amps, not tube amps.

SS:

1: Musical Fidelity X-A1 integrated amp (one power section dead following < 1200 hours of usage - too bad as it sounded very nice with efficient speakers).

2. Musical Fidelity AS-100 power amp (loud hum following < 5 hours usage - returned to Audio Advisor).

3. Hafler DH-500 power amp (power cord interface became brittle and broke < 5 years from manufacture - this was an easy 5 minute diagnosis/fix once I popped the cover). Primarily for PA use, but nice with Hi-fi also.

4. Quad 303 power amp (caps and some of the resistors shot < 8 years from the manufacture date (too much of a hassle to repair per a friend/tech).

5. Quad 33 preamp (same as the 303 power amp above - I ended trading both units, with full disclosure, for a painting:-).

6. Advent 300 receiver (never a problem with sporatic usage over a 9-10 years period).

7. Phase Linear 400 power amp (had a tendency to shut down when continuously operated for approx. 6+ hours whether it be PA or Hifi use - otherwise reliable for lesser periods - bought it new and used it for a couple of years - preferred Dynaco ST-70's in mono mode for PA use as they sounded better and they did not shut down).

Tube Amps:

1: Various RCA, Emerson, etc., stereo console integrated, power and preamps (5-10 years old @ time of usage and no problems with Hi-fi use - blew up a few using them as guitar amps - 10 years old and clueless @ the time).

2. Eico HF-81 integrated (no problems and recapped after 10-12 years - standard maintenance for most any amp).

3. Dynaco Stereo 70 power amps (owned 4 of these and no problems other than having 2 people run/crank a signal through 2 of them w/o a load/speakers being connected, this caused major damage to one of them and it is a case of misuse - recapped the remaining three after 10 years, or so).

4. Mac 30 mono block power amps (never a problem and recapped once approx. 20 years after manufacture).

5. Dyanco Pas3X and Dynaco Pas3 preamps (no problems - had one of them modified with the tone controls being removed from circuit - caps reformed well and were never replaced)

6. Dynaco SCA-35 integrated amp (not mine, but on long term loan - had it recapped/refurbished even though it sounded/performed fine as the caps were original and 15+ years old).

7. Audion Silver Night 300B SET amp (no problems other than the chassis ground being miswired @ the factory, per the US rep, an easy fix).

8. Pilot 690A tuner/preamp (tuner section damaged in transit, but the preamp section is fine - reformed instead of replaced original caps, no problems with this 40 year old piece).

9. Pilot 232 power amp (replaced a single ceramic resistor, otherwise no problems with this 40+ year old piece - reformed original caps).

10. Pilot 240 integrated amp (no problems - 40+ years old - reformed original caps).

11. Bottlehead Foreplay preamp kit (2+ years old - I'm the second owner - no problems).

12. Bottlehead Paramour 2a3 SET mono block kits (same info as Bottlehead Foreplay).

From my experience tubes get the nod for reliablity and I did not even list the tube guitar amps I have owned in the past (not a problem with one). I also plan to recap the old Pilot units eventually if I decide to keep/use them long term (only had them for a couple of years now).