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Linear Tube Audio MZ2. Even fully loaded with upgraded outboard LPS and remote only $2100 new direct from company. Less if you don't want the upgraded power supply to start with.
Here’s a capacitor coupled pre you can’t go wrong with:https://www.audiogon.com/listings/lis8g1ee-audio-note-m-1-phono-tubeAlso look into Audio Note Kits L2 that can be built by Digital Pete:http://ankaudiokits.com/l2line.html
Van Alstine T10RB, well under budget even with remote option. Remote volume and mute, no remote input switching.
With the L2 a remote volume control of your choice can be installed. Here is a very good remote option: http://www.bentaudio.com/index2.html
I dont see it on the website. I'll send them an email.Who's Digital Pete?
Based on the OP's description of his system, horn loaded speakers and 300b amplifier, and feeling a passive is showing too much "truth", I think he/she is on the right track with an active tube preamp. There may be noise and gain issues however depending on system efficiency, etc. The recommendation of the MicroZOTL is a good one. It has very low output impedance, is dead silent, and the gain can be lowered by using 12au7 instead of 12aT7 tubes in the input/driver spot. I replaced a quality passive and buffer with a MZ in my horn based system (102db) with a great improvement in transparency and dynamics. It will not sound tubey however, or soften high frequencies if that's a goal.As mentioned in the OP's other thread about preamp tubes (http://www.audiocircle.com/index.php?topic=156685.msg1676900#new), the Musical Design/Concepts preamp I mentioned does give great flexibility by allowing not just tube rolling, but the ability to change tube type to best match a system, or just have fun experimenting. I have both a MicroZOTL and a Chameleon in my systems.
Thanks RustyAnother LTA recommendation and this from a horn guy.Do you have the upgeaded power supply? Using 6sn7s?Concerned about resale value of the Chameleon
Thanks RustyAnother LTA recommendation and this from a horn guy......
I should probably make clear that I wasn't able to use the Chameleon with my horn speakers because of the gain/noise issues. I need a silent system and that's hard at 102db. I use the MZ with the lower gain 12au7 input/driver tubes. I think it reduces gain to just 9db. It's dead quiet with the horns where the Chameleon had audible hiss from 4-5 ft away. It has 18-23 db of gain depending on which tube board is used. Be sure any other active pre you consider has low gain, or noise will likely be an issue. People should know it is not recommended to use the MZ with direct coupled SS amps. It will pass dc if turned off with the amp on, or during a power failure, etc. Not a problem with your 300b amps, though. It's a headamp that's been modified to be used as a preamp too by LTA.
I'll keep my eyes open for a deHavilland for you - I see you're beating the bushes as well.A couple seem to pop up every so often and then they disappear.https://www.head-fi.org/threads/fs-dehavilland-ultraverve-preamp-octal-tubes-6sn7-price-drop.859558/Not a 3 and it may be gone by now.