deHavilland Electric Amp Ultraverve III Remote controlled tube preamplifier

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I have a very clean trade-in  deHavilland Ultraverve III preamp for sale. it is conservative rated 8/10 but could easily be a 9/10. It has been checked out and sounds and looks great. It has 4 analog inputs and 2 sets of outputs. It takes an IEC power cord and has a ground lift switch to get rid of ground loops. It has the optional trim pot attenuators on top. It features the famous 6SN7 octal vacuum tube, and all vacuum tube rectification using the 5AW4 / 5U4 octal tube rectifier. My customer told me it was built in 9.13 so it is about a year old with low listening hours.

Reviews on the entire Ultraverve series have been excellent from the original all the way to this current III version. .

The Dehavilland website says:

We are proud to bring the UltraVerve 3 vacuum tube line stage preamplifier to production.. It features the famous 6SN7 octal vacuum tube, and all vacuum tube rectification using  the 5AW4 / 5U4 octal tube rectifier.

  

We developed this line stage to complement our single ended triode amplifiers. One of the things we  achieved was to design a preamp that did not damage the dynamic quality of the music. The UltraVerve 3 line stage is a true zero negative feedback Class A design. The octal tube complement coupled with tube rectification produces a huge, full-bodied soundstage and an angelically sweet and dynamic midrange.  This preamp is just a joy to listen through.

 

The UltraVerve 3 preamplifier features 100% hand wired point-to-point circuitry in the audio as well as the power supply circuit. The front panel is heavy duty anodized with Solar Black powder coat chassis. It features a soft start turn on circuit for gentle startup. The design places very little stress on the tube compliment. This assures extremely long  service and sonic life of the tubes. Quality, Value, and Performance, by deHavilland, "Hand made in California with a passion for sound since 1997"

 

according to Kara:

The octal tubes we employ give you what in "Tube Lore" is described as "BIG TONE", something you just can't get with nine pin miniature tubes found in most preamps. 12AX7’s or 6922’s just can't get there. While many companies say that the simplest circuit is the best, they don’t practice what they preach -- they have miles of circuitry and solid state regulation everywhere. Our R&D shows that regulated power supplies can ruin the dynamics and imaging, just like too much feedback does. We spend more time and money on our filtering and use big, strong 5U4 and 5AW4 tube rectifiers, because they provide super dynamics. Furthermore, all of our power supply and audio circuit wiring is point to point, using the best wire available and the best dielectric known to man -- air. And while others may dress their equipment up with fancy gold or chrome plating and exotic woods that offer little or no sonic improvement, we prefer to use premium components and provide you, the listener with affordable, high quality equipment.  Our gear is literally overbuilt to last a lifetime!  At deHavilland, we are serious when we say that we want more listeners to be able to experience the beauty of single-ended vacuum tube sound, making this type of pre amplifier available to a much wider range of listeners -- that's our story.

The 32 step precision stepped atteunator is new in the Ultraverve III.  This is our proprietary design volume control.  It is fully analog and has all discrete resistors switched by  precision relays , to change volume levels . It is quieter than a rotary switch attenuator and has 32 steps instead of 24. 

Our relay attenuator can be fully remote controlled via the handset shown below. It also has  mute ON/OFF buttons that return to the same volume level. The bezel is machined aluminum anodized and engraved with nomenclature.  The infrared sensor in the preamp front panel works from a very wide angle and is very reliable.

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