THis is hard to follow. Here's why

Tubes Asylum

Questions about tubes and gear that glows. FAQ

In Reply to: Tempest II problems posted by Audiopath49 on December 2, 2006 at 21:20:31:

The older models had 4 and 8 ohm speaker selection. Are using the right one?
"I did notice that with the passive preamp that should have driven the Stereo 90 to a full 90 watts did not happen"
This sentence suggests something is wrong with the preamp. Does it have an active and passive preamp? Also preamps do not "drive" amps ina power sense. The power comes from the power amp side.
"The unit can be turned up full without even a hint of clipping and basically sounds about as loud as my 3020 NAD that I am using to break the speakers in at night."
This sentence suggests you don't have a problem: it seems to contradict the first sentence.
"My problem isâ€¦ are these NOS tubes which Rogue wants to replace with conventional EH brand tubes contributing to the absolutely gorgeous sound I am hearing from this amp?"
What? A passive preamp doesn't use tubes, now I am more confused.
The NOS tubes are 6SN7s? This amp also uses 12AX7s. That implies an active preamp section with 1 driver and 1 output per channel. I am guessing. Very good NOS 6SN7 tubes will sound "different" than newer 6SN7 tubes in some circuits and show no or only a small difference in other types of circuits. In general an active preamp (or a passive) will influence the sound.
Rogue is a good company. Send them your tubes, so they can test them. But hey, check the impedance you are using first if it still can do both 4 and 8 ohms speakers

This post is made possible by the generous support of people like you and our sponsors:

Amplified Parts

Follow Ups Full Thread

Topic - Tempest II problems - Audiopath49 21:20:31 12/02/06 (5)

Re: Tempest II problems - Catch22 14:55:43 12/03/06 (0)

THis is hard to follow. Here's why - Frihed89 00:58:41 12/03/06 (3)

Re: THis is hard to follow. Here's why - Mechans 05:02:17 12/04/06 (2)

Re: THis is hard to follow. Here's why - Frihed89 08:26:43 12/04/06 (1)

Re: THis is hard to follow. Here's why - Mechans 05:07:35 12/05/06 (0)

Follow Ups

THis is hard to follow. Here's why - Frihed89 00:58:41 12/03/06 (3)

Re: THis is hard to follow. Here's why - Mechans 05:02:17 12/04/06 (2)

Re: THis is hard to follow. Here's why - Frihed89 08:26:43 12/04/06 (1)

Re: THis is hard to follow. Here's why - Mechans 05:07:35 12/05/06 (0)

You can not post to an archived thread.