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Inspire by Dennis Had Enjoying Vacuum Tube Audio

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  #7501  
Old 06-08-2023, 09:12 AM
Human Bean Human Bean is offline
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Originally Posted by timeout59 View Post
Looking for a backup driver and rectifier tubes for my 300B-v. Are 6SL7 and 5U4 / 5AR4 the only options?
FWIW, I recently bought a linlai WE 274b, not cheap, but is my fave in my Inspire 45/2A3 and KT88SEP. YMMV.
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  #7502  
Old 06-08-2023, 11:25 AM
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Masterlu Masterlu is online now
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Human Bean… Welcome to AA!
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  #7503  
Old 06-14-2023, 11:04 PM
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Default update...

So, meanwhile back at the Toy Shop, Dennis has been busy. While I'm out of town, he's been building amps. Guess when I'm around we listen to music and brainstorm ideas, when he should be building amps. Here are a pair of 300b-v's.

Sorry, they're both already spoken for...However you can still order one and bypass the E-Bay line here.

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr

Here's the undersides of one of these amps...

Untitled by analog addict, on Flickr



Also up for grabs is the new GK6'er, production unit #1, for $2000

Untitled by analog addict, on Flickr



Also up for grabs is the new 2A3, featuring new PSVANE 2A3 tubes...This will be ready next week when the face plate arrives. $2950

Untitled by analog addict, on Flickr



Last but certainly not least, is a new pre amp prototype, based on the WE396A
with a 6GK6 cathode follower. Dennis is very excited about this one.

Not for sale ...yet.

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr

As always, jump line by bypassing E-Bay and PM me here for all your Inspire needs.

Last edited by Analog Addict; 06-14-2023 at 11:43 PM.
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  #7504  
Old 06-15-2023, 03:18 PM
Jefffeith Jefffeith is offline
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Default Preamp for Sweet 807



Connecting my iPad directly into the Sweet 807 doesn’t produce very loud volume levels - small rooms + high efficiency speakers only. My room is about 16’ x 20’. Adding an inexpensive preamp allows me to play at very loud volumes easily. I chose the Topping L30II which cost $150 and it comes in red. Pleasantly surprised the Inspire amp’s sound remained the same - just louder.

Maybe I’ll have to get the new little black preamp in the post above. Will it add the gain I’m getting with the Topping? So beautiful!

PS. I figured out how to make the photo smaller and replaced the one that was too large.

Last edited by Jefffeith; 06-15-2023 at 05:40 PM.
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  #7505  
Old 06-15-2023, 06:42 PM
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Quote:
Originally Posted by Jefffeith View Post


Connecting my iPad directly into the Sweet 807 doesnít produce very loud volume levels - small rooms + high efficiency speakers only. My room is about 16í x 20í. Adding an inexpensive preamp allows me to play at very loud volumes easily. I chose the Topping L30II which cost $150 and it comes in red. Pleasantly surprised the Inspire ampís sound remained the same - just louder.

Maybe Iíll have to get the new little black preamp in the post above. Will it add the gain Iím getting with the Topping? So beautiful!
Impossible to say without knowing the specs on the pre amp. However Inspire gear is always designed to be additive/synergistic, meaning the sum is always greater than the number of its parts.
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  #7506  
Old 06-15-2023, 07:07 PM
Isaacc7 Isaacc7 is online now
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Quote:
Originally Posted by Jefffeith View Post


Connecting my iPad directly into the Sweet 807 doesnít produce very loud volume levels - small rooms + high efficiency speakers only. My room is about 16í x 20í. Adding an inexpensive preamp allows me to play at very loud volumes easily. I chose the Topping L30II which cost $150 and it comes in red. Pleasantly surprised the Inspire ampís sound remained the same - just louder.

Maybe Iíll have to get the new little black preamp in the post above. Will it add the gain Iím getting with the Topping? So beautiful!

PS. I figured out how to make the photo smaller and replaced the one that was too large.
The Topping has the reputation of many solid state preamps, super clean. Doesnít surprise me that the sound isnít all that different with it in your system. I have a tube preamp (Supratek Cabernet) and it can have quite a variable effect on my system. Keep in mind that I am a serial tube rollerÖ I finds that the tubes in every step of the amplification chain makes a difference and not every tube works well with every other one. For example, I had been running some GEC 12sn7 in my preamp, very well regarded tubes that I was really happy with. I pout in some new driver tubes in my amp and yuck! Guess the drivers arenít so good, right? Not so fast! I replaced the GEC with some Sylvania 12sn7 tubes and Iím back to great sound! A little different, but still great.

Thatís my long winded way of saying that a tube preamp can be a blessing and a curse. When you have everything dialed in they can give you a richer, bigger sound that is addictive. They can also make previously liked tube combos in your amp not as good.
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  #7507  
Old 06-18-2023, 09:02 AM
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Default Weekend toob rolling...

Dennis finished up a new "Signature" KT-88 Firebottle amp for one of our AA members and has been having a lot of fun rolling different tubes through it this weekend.

Back at the Ranch....

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr


A pair of metal 6L6s...

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr




EL-34s

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr



and his favorite combo of the night, 6L6GTs, GE 6SN7, and new production 5U4G...

Untitled by analog addict, on Flickr

Untitled by analog addict, on Flickr


He told me that he was planning on making two of these, and although this one is spoken for, there is one more still available.

PM me for details...
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  #7508  
Old 06-18-2023, 09:35 AM
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Nice, I'd be happy owning all those great tubes to experiment with.

What distinguishes the "Signature" from the usual KT-88 Firebottle?

What is that very cool looking globe shaped tube in the 6SN7 position?

Last edited by timeout59; 06-18-2023 at 10:50 AM.
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  #7509  
Old 06-18-2023, 11:56 AM
Isaacc7 Isaacc7 is online now
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I’m a big fan of 6l6 tubes but haven’t gotten around to trying the metal ones. I know that the metal 6j5, 6c5, and c3m tubes are great and I like my metal 6f6 as well. They may not look great but they are still cheap!
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  #7510  
Old 06-18-2023, 12:30 PM
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Quote:
Originally Posted by timeout59 View Post
What distinguishes the "Signature" from the usual KT-88 Firebottle?

What is that very cool looking globe shaped tube in the 6SN7 position?
The Signature KT-88 Fire Ottoís has a higher voltage power transformer, and is set up for higher plate and filament current. The globe tube is a Linlai 6SN7.


Quote:
Originally Posted by Isaacc7 View Post
Iím a big fan of 6l6 tubes but havenít gotten around to trying the metal ones. I know that the metal 6j5, 6c5, and c3m tubes are great and I like my metal 6f6 as well. They may not look great but they are still cheap!
The metal 6L6s are actually the first version of the 6L6. Some people prefer them over all othersÖ
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