invalid

It's a very versatile word, can mean many different things, some of them being totally opposites and everything in-between.

Mark the owner retired, which sucks because his shop was about 10 minutes from my house.

Glad it worked out.

[quoteBut as you point out, if you don’t know - but these ASR types should know better. [/quote] Wait, Amir owns Levinson amps?

1's and 0's mean nothing to digital audio or computers for that matter.

A lot of measurement types will tell you the sound difference is due to voltage drop, but I run 3b22, or 866a tubes which have the same constant voltage drop of 15 volts no matter how much current and they sound different from each other. The 3b22 is bright and the 866a are warmer sounding.

How much rectifier rolling have you done with the Lampizator DAC?

You are doing it right, bones can splinter easier when cooked.

If you go the route of a class A solid state amplifier, you could get one that has a switch to change from class A operation to class A/B operation. I know Plinius makes amps like this, as I'm sure there are others as well.

t's not just the lack of heat sinking, it's also the 90 watts of idle current that makes it suspect.

I still have a pair of these, and the copper doesn't turn green like later monster cables.

If you want tube sound, but don't want the upkeep try a hybrid with tubes driving mosfet output stage. I'm using a hybrid with kt150 tubes driving a mosfet output stage, driving Polk SDA2A speakers, it doesn't play as loud as my Krell ksa 300s amplifier, but it's only 50 watts compared to 300 watts, and the bass is better…

They are, but the OP says he is biamping, now I guess it would work depending on the configuration in use.

This is the fault of McIntosh, they are not the company they used to be, which is why they were being sold at Best buy.

I would think they would have to by law, it's not like it's a grey market item.

I don't believe the parasound A21+ amplifier is fully balanced from input to output, it has a single ended output stage.

The big supply capacitors last a lot longer than the small capacitors because they dissipate heat better and they usually have more airflow around them also. When Krell was still around they told me they very rarely had to replace big supply capacitors.

There was also a Fosgate tube phono preamp made some decades ago also.

It's looks far more complex than a ksa 250. I'm not looking forward to fixing my ksa 300s, which is more complex than the ksa 250 also.

The large capacitors on the adcom 555se are hiding under the circuit boards.

You should make sure you are buying one left and one right speaker, if I remember correctly Polk shipped some pairs of two left or two right speakers.

Yes I have read that thread, but I'm sure they are ripping customers off with that high priced shipping. I would think better of them if they just charged more for the product in the first place.

What is wrong with the laminate on the speakers, it looks like it's in good shape? I had a friend of mine just paint over the laminate about 10 years ago and they still look fantastic.

You should always start another thread until you get the answer you want.

I take it that the preamp uses the 6sn7 tube for voltage gain and it has a transistor current gain stage.

Those old globe style 866 tubes from the 1920's sure do light up better than the later 866a version.

You would be surprised at how many manufacturers get this wrong.

Doesn't Hoppe have a soft start board for the adcom 555? My 555 went though power switches pretty regularly, but it hasn't in several years due to the fact it let out the magic white smoke. I don't think it's worth putting money into.