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Inspire by Dennis Had Enjoying Vacuum Tube Audio

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  #6541  
Old 08-10-2021, 07:53 PM
khill007 khill007 is offline
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So, since I think I had the first LP-71a built I am going to go totally hyperbole here and agree with what Dennis says about this line stage! I have been in this game for over 40 years and the SQ I hear from the LP-71a and current iteration of his 45 amp is simply stunning! Now I will say my upstream gear probably has a lot to do with the synergy I have going on... but in all my years and "THOUSANDS OF DOLLARS" of rolling gear in and out I have to say this is a very, very special piece of gear. I'm not good with all of this audiophile speak but I just had to comment. Stunning, absolutely stunning!

About to send back to Dennis for an upgrade that lowers the noise floor even more...and rebrand it the 20/30 or whatever he is calling it?!


Associated Gear:

Inspire LP-71a Pre (Cunningham Ballon 301a's, Hytron 0A3, Acme 274B)
Inspire 45 (EML Solid Plate 45's, Mullard ECC35, Western Electric 274a
Lampizator Amber 3 DAC
Auralic Aries G1 Streamer
Klipsch Cornwall IV's





[QUOTE=FloridaBoy;1042926]
Quote:
Originally Posted by Analog Addict View Post
Dennis has been perfecting an upscale version of a pre amp that we have been monkeying around with for the better part of 3 years, and as some of you may already know, is called the LP-71A.

Before I go any further, let me tell you all what Dennis has said about this new design, and I quote...

"Not only is this the best pre amp I've ever designed, but it is the best pre amp I've ever heard"

What more is there to be said?

One of the nice things is that it will run three different types of tubes interchangeably, the 12/112, the 01A and variants, and of course the 71A and its variants. I won't try and describe how it sounds. Let Dennis' comment speak for itself...

I ordered one yesterday.

I wasn't aware that it would also run the 12/112, the 01A and variants, and of course the 71A and its variants.
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  #6542  
Old 08-10-2021, 09:01 PM
bwilson61 bwilson61 is offline
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What is the difference between the model 71 preamp and the current l-2030 on eBay
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  #6543  
Old 08-11-2021, 07:17 AM
bearcity bearcity is offline
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Quote:
Originally Posted by bwilson61 View Post
What is the difference between the model 71 preamp and the current l-2030 on eBay


Name only. The more dennis rolled tubes in this pre circuit, the more he liked the 201 and 301 battery radio tubes from the 1920s and 1930s. I think LP-2030 sounds so ahead of its time, whereas the SLP98 and 05 are so past tense. [emoji6]
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  #6544  
Old 08-11-2021, 11:05 AM
FloridaBoy FloridaBoy is offline
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Quote:
Originally Posted by bearcity View Post
Name only. The more dennis rolled tubes in this pre circuit, the more he liked the 201 and 301 battery radio tubes from the 1920s and 1930s. I think LP-2030 sounds so ahead of its time, whereas the SLP98 and 05 are so past tense. [emoji6]
So, can the LP-2030 also use the 71a?
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  #6545  
Old 08-11-2021, 12:19 PM
Bombadil Bombadil is offline
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I see that Dennis has been building a lot of "KT88" amps.

Are these actually any different than the "6FLV" amps he was selling a few months ago? I know both amps can use tubes from the 6F6 to KT170.

I guess he could label these amps as any tube he wanted, as EL34 amps, as 6L6 amps.
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  #6546  
Old 08-11-2021, 04:45 PM
bwilson61 bwilson61 is offline
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Quote:
Originally Posted by bearcity View Post
Name only. The more dennis rolled tubes in this pre circuit, the more he liked the 201 and 301 battery radio tubes from the 1920s and 1930s. I think LP-2030 sounds so ahead of its time, whereas the SLP98 and 05 are so past tense. [emoji6]
Has anyone used it with high efficient speakers and if so was there any hums or any buzzing.
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  #6547  
Old 08-11-2021, 06:14 PM
bearcity bearcity is offline
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Quote:
Originally Posted by FloridaBoy View Post
So, can the LP-2030 also use the 71a?


Yes, O1a, 71a, 201a, 301a. Dennis even got the short pin NV type to run with great success using a tool to spread the pins if I am not mistaken.
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  #6548  
Old 08-11-2021, 06:34 PM
bearcity bearcity is offline
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Quote:
Originally Posted by Bombadil View Post
I see that Dennis has been building a lot of "KT88" amps.



Are these actually any different than the "6FLV" amps he was selling a few months ago? I know both amps can use tubes from the 6F6 to KT170.



I guess he could label these amps as any tube he wanted, as EL34 amps, as 6L6 amps.


I am sure Straitwire can elaborate further but the biggest difference between the two amps I am aware of is the OPTs. Tailor windings for the tubes on the faceplate but still able to run the lot.
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  #6549  
Old 08-11-2021, 06:52 PM
khill007 khill007 is offline
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I’ve used all with great success. Cunningham 301’s blow everything else out of the water.

Quote:
Originally Posted by bearcity View Post
Yes, O1a, 71a, 201a, 301a. Dennis even got the short pin NV type to run with great success using a tool to spread the pins if I am not mistaken.
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  #6550  
Old 08-12-2021, 11:18 PM
hrparsons hrparsons is offline
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I already have my LP71A preamp, but unfortunately I have not been able to enjoy it yet. Dennis is rebranding them the LP 2030 in reference to the the 1920s and 1930s from whence these tubes originated. If I understand him correctly.

I will be also sending it back for a rebranding and maybe a modification if possible. To read what some of you have said about this preamp, along with Dennis's comments, I am becoming increasingly excited about getting it back and enjoying it.
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