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-   -   Dennis Had Inspire Amps (https://www.audioaficionado.org/showthread.php?t=24170)

Analog Addict 10-31-2022 05:13 PM

a few more pix....
 
https://live.staticflickr.com/65535/...0723acbc_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...5551bf24_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...a5c61494_b.jpgUntitled by analog addict, on Flickr

harryz 11-01-2022 10:24 PM

I would love to hear that amp! Today I received an LP-2030 that I recently bought from a fellow on another site. Wow. What an extraordinary preamp-:). I've owned nice octal preamps and even a type 85 unit (a Mercury, made by my friend Kara Chafee of DeHavilland hifi) and the 2030 is the most natural, involving and simply "right" sounding pre I've had. Just curious-- has anyone swapped the 5U4 for a 274B in a 2030? Not that I'm in any rush, mind you.

The rest of the system I'm using is a pair of home-brew PP 45 monos with 56 and 6SN7s on the front end and a 5Y3 rectifiers, Cain and Cain Super Abbys with a corner loaded, sealed box sub, an MHDT Orchid DAC, a Bel Canto CD2 and an Auralic Aries streamer. I couldn't be happier (although I am looking for an Inspire 6V6 or 807 SE amp to play around with... Also have a nice pair of custom horns with Onken style cabinets and a 421A amp en route along with a nice TT or two, tape machines and more. Too much gear.... The 2030 is a long term keeper.

Masterlu 11-01-2022 10:30 PM

harryz… Welcome to AA! :wave:

harryz 11-01-2022 10:59 PM

Thanks Ivan!

Analog Addict 11-05-2022 11:41 AM

Shootout at the 300B corral...
 
Since Dennis had finished his new 300B PSE and and all the usual suspects were available on Friday, we got together for an amp shootout. The count was 11 amps total, 10 of them different models...

https://live.staticflickr.com/65535/...5095b17d_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...aa3d5cae_b.jpgUntitled by analog addict, on Flickr

Shown here are the 6V6'er, 7C5'er, Universal PSE, 46 SET, and 6FLV amps.

https://live.staticflickr.com/65535/...32320b7e_b.jpgUntitled by analog addict, on Flickr

Here we have the 300B PSE flanked by a pair of 300B amps. Underneath is a prototype PSE, and my 45 PSE.

And of course let's not forget the Kleen Sweep amp...

https://live.staticflickr.com/65535/...00a21a87_b.jpgUntitled by analog addict, on Flickr

Despite all this heavy metal, the PSE 300B was clearly the star of the show.

Dennis says this amp is the best one ever to play in the shop, and I'd have to agree with him. It literally blew everything else away. In it's current configuration it's putting out somewhere around 12 WPC. However, that number can't convey the incredible deep bass, the rich tones, and the sweet syrupy highs. The old dogma is that triodes are great for jazz, female vocals, etc, but don't have the oomph to handle rock and roll.

WRONG....

https://live.staticflickr.com/65535/...fec6a94b_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...f5bf70cc_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...625526b0_b.jpgUntitled by analog addict, on Flickr

Here's a little Pat Travers...(Click on the image)

https://live.staticflickr.com/31337/...8f43d992_b.jpgUntitled by analog addict, on Flickr

and here's a little club music...(Click on the image)

https://live.staticflickr.com/31337/...8debba04_b.jpgUntitled by analog addict, on Flickr

The amount of bass coming out of this amp and the Inspire speakers is nothing short of amazing. Typically they have not been as dynamic as the big shop prototypes, but with the extras power and dynamic range of the 300B PSE, they really open up and come alive. What's really amazing is that all that bass is coming from an open baffle design. We will be continuing to make the Inspire speakers as a custom order, and we be able to ship them in the near future.

Some spur of the moment critiquing...(Click on the image)

https://live.staticflickr.com/31337/...c495d586_b.jpgUntitled by analog addict, on Flickr

I would only add that the nice thing about that extra power, is that you don't necessarily have to use it all the time, but it sure is nice to have it when you want it. And if you don't got it, no amount of 4 letter words is gonna produce it from thin air...

Also spotted for the first time was the Kleen Sweep amp, 6-7 WPC of inexpensive Inspire power. This is a very...ahem...clean listenable amp with a bright upper end. Dennis is going to offer this one as his affordable, entry level offering into the Inspire line.

Dennis will be asking a mere $1500 for this one


https://live.staticflickr.com/65535/...a4fb1102_b.jpgUntitled by analog addict, on Flickr

In addition, I really enjoyed the 46 amp that I heard for the first time. This tube is like a juiced up 45 that although it is only rated at 2 wpc, it seems a whole lot more powerful than just a couple of watts. It also has that nice rich SET sound to it, while the Kleen Sweep is obviously a SEP amp.

The 46 SET amp will run an even $2000.

https://live.staticflickr.com/65535/...17caca79_b.jpgUntitled by analog addict, on Flickr

But for those of you who want the Ultimate Inspire amp, there can be no other than the 300B PSE. However, it is not for cheapskates or people with holes in their shoes.

The 300B PSE will run $8500.

However, realize that's with $3000 worth of brand new WE 300Bs, guaranteed for 5 years. I can not say enough about this amp. I wish I could afford one, but it's not in the cards, at least not yet...


"This is the Big Boy...."

https://live.staticflickr.com/65535/...bd67af99_b.jpgUntitled by analog addict, on Flickr

Isaacc7 11-05-2022 01:28 PM

Are those 6bg6 tubes in the Kleen Sweep? Dennis has mentioned to me that he really likes that tube. I’ve liked what I’ve heard from some GE 6bg6ga tubes in my Firebottle KT88.

That 300b PSE looks amazing. I’m sure it sounds as good as it looks. Won’t be getting one sadly, I can’t afford to play in the big boy’s club lol.

khashmi 11-05-2022 06:18 PM

Wow! Thanks for sharing this Allan. I wish I could have been part of this listening session!

Still digesting price of the 300b PSE…whoa! The Kleen Sweep wasn’t on my radar. What kind of tubes will that take?

cgn-dt-n 11-06-2022 11:47 AM

Wow, beautiful photos, certainly a great event with many impressions.
almost a bit like in the land of milk and honey.
It is certainly fascinating to hear the differences between the individual amplifier concepts.

I think it's comparable to a visit to Acapella in Duisburg.
here most of the speakers are ready for demonstration.

I used to be sad and depressed when I listened to a great system. It was always better than at home. But with the combination of Acapella la campamella and Inspire LP 2030 / 300b DJH
plays it just as well in my living room as in a large hall with a system for the equivalent of a house.

I have now reached the same level. Emotions, timbres, spatial staggering, dynamics, naturalness, bass power, etc.
and apart from the maximum volume, I have no limitations. but who hears at home on the original level of a live concert in the stadium. my maximum achievable volume is more than sufficient, and my neighbors also know my music taste......

The new 300 PSE is worth a sin, and I call it a special offer for the price, but unfortunately out of my reach.

With other well-known manufacturers, similar concepts often cost 2 to 3 times the price.

The only thing that helps me is to work a lot and save money.

cgn-dt-n 11-06-2022 01:27 PM

I read Steve Huff's review and watched the video.

I can confirm most of his statements.

I don't know if it's the combination with its speakers or the room, or if the 300b DJH from me has a little more power, but with my 93db horn speakers also works electro and hard rock up to very high volumes. there is no lack of bass intensity / volume or attack and speed, even had banging is possible if it is required.

Otherwise, it was a very nice report that praises Dennis about everything.

Blackcat 11-07-2022 07:57 PM

Someone please get me in contact with Dennis, I NEED a 300B PSE.

Isaacc7 11-07-2022 10:59 PM

Quote:

Originally Posted by Blackcat (Post 1068280)
Someone please get me in contact with Dennis, I NEED a 300B PSE.

Woo! Big boy stepping up! Lol. I wonder if Dennis will put these on ebay or here?

Analog Addict 11-08-2022 10:39 AM

Easy
 
Quote:

Originally Posted by Blackcat (Post 1068280)
Someone please get me in contact with Dennis, I NEED a 300B PSE.

Two ways to do this. Either you go through EBay and his seller's name - Radioman731, or you send me a PM and I can make the arrangements for you.

Your choice.

Also, Dennis has asked me to help him go through boxes of toobs he has lying around, and put them up for sale. I will post notices here and put the toobs in the AA Marketplace.

Lastly, anyone serious about the PSE 300B can PM me as well. Dennis is having another chassis built, so there will be at least one more coming down the pike.

Analog Addict 11-11-2022 12:16 PM

Well, I was going to post that Dennis just put up another 300b PSE for sale on EBay, but I'm afraid it has already sold...However, He already has Straitwire making more chassis. Stay tuned!

Isaacc7 11-11-2022 01:04 PM

Quote:

Originally Posted by Analog Addict (Post 1068435)
Well, I was going to post that Dennis just put up another 300b PSE for sale on EBay, but I'm afraid it has already sold...However, He already has Straitwire making more chassis. Stay tuned!

Wow! Looks like Dennis has hit on something. Glad to hear his flagship is in demand.

Analog Addict 11-11-2022 01:05 PM

Well, the last one lasted all of an hour. Dennis is putting another one up now if anyone is interested....

Analog Addict 11-11-2022 01:49 PM

Nevermind. That one is sold as well

Analog Addict 11-15-2022 12:53 PM

Another 300b PSE being https://flic.kr/p/2nZrsUrborn…
https://live.staticflickr.com/65535/...72505470_b.jpgUntitled by analog addict, on Flickr

Analog Addict 11-19-2022 10:53 AM

Chassis ready for powder coat....

https://live.staticflickr.com/65535/...1bff0dc2_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...93411c5f_b.jpgUntitled by analog addict, on Flickr

Analog Addict 11-26-2022 12:35 PM

In the meantime…
 
Dennis has not only another PSE300b up for sale, but also a new Kleen Sweep amp. This is one of Dennis’s current favorites.

To quote him…“The 6JM6 tubes should last 10 to 20 years the way they are operating in the Inspire “Kleen-Sweep”. Also a brand new NOS set of 6JM6’s cost about $20 to $50 a pair, and you can flood the earth with them .. they are plentiful NOS tubes made by GE and RCA.”

In addition, this is about the easiest way on the wallet to get into the Inspire sound with an amp that is also cheap to maintain. Price is $1700. Check it out at you know where…

https://live.staticflickr.com/65535/...259f81b2_b.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...8fe7b165_k.jpgUntitled by analog addict, on Flickr

https://live.staticflickr.com/65535/...339e4a03_k.jpgUntitled by analog addict, on Flickr

Formerly YB-2 11-26-2022 08:57 PM

Quote:

Originally Posted by Analog Addict (Post 1068202)
Since Dennis had finished his new 300B.

Despite all this heavy metal, the PSE 300B was clearly the star of the show.

Dennis says this amp is the best one ever to play in the shop, and I'd have to agree with him. It literally blew everything else away. In it's current configuration it's putting out somewhere around 12 WPC. However, that number can't convey the incredible deep bass, the rich tones, and the sweet syrupy highs. The old dogma is that triodes are great for jazz, female vocals, etc, but don't have the oomph to handle rock and roll.

WRONG....

https://live.staticflickr.com/65535/...fec6a94b_b.jpgUntitled by analog addict

Very nice. :thumbsup:
What is the knob used for?

Isaacc7 11-26-2022 10:13 PM

6JM6 tubes? Woo… Dennis dove into the weeds with that one! Love how he says that they should last 10-20 years and then says that retubing will be cheap lol. I’m not familiar with the input tube.

Other than the voltage to the screen grid, I wonder how different the design is from a regular kt88 Firebottle?

Isaacc7 11-27-2022 12:38 PM

Looks like the Kleen Sweep amp already sold. At least I can’t see it on eBay. It makes me inordinately happy when obscure, “useless” tubes get used.

Analog Addict 11-27-2022 02:21 PM

Quote:

Originally Posted by Formerly YB-2 (Post 1069002)
Very nice. :thumbsup:
What is the knob used for?

It's a volume/gain controil. The amp can be used without an preamp if the source has enough voltage...

And yes, it appears that the Kleen Sweep has already sold. However, if anyone wants one, contact Dennis through ebay email, or contact me here via PM.

Analog Addict 11-27-2022 02:26 PM

Quote:

Originally Posted by Isaacc7 (Post 1069003)
I’m not familiar with the input tube.

Its a Western Electric 396a, a substitute for a 6DJ8...:music:

straitwire 11-27-2022 07:46 PM

I finished cutting the phono preamp chassis and took them to the powder coater, they should be ready soon.
The circuit is a dual triode 6SN7 RIAA circuit with 43 db of gain and a low impedance ECC99 tube output buffer.
The power supply is vacuum tube rectification with B+ shunt regulation along with regulated DC filament voltage on all tubes.

https://i.imgur.com/xND6GC9.jpg[/IMG]

cgn-dt-n 11-28-2022 02:30 PM

Hi straitwire,

nice news with the finished chassis for the Phono Station.

Did Dennis dig deep into his bag of tricks and change the design both technically from the selection of the tube assembly and from the number of chassis?

I think he knows what he's doing and didn't do the design for no reason.

If this is good for the sound quality, it is certainly the right way. In addition, one device is easier to integrate into the system than two, which should also be at a certain distance from each other.

I'm curious...

straitwire 11-28-2022 05:59 PM

Hey cgn-dt-n, Dennis has finalized the circuit and the chassis layout.
My personal preamp is still two separate chassis using the same circuit
because this works better with the space I have.

Blackcat 11-28-2022 11:26 PM

Just ordered one of the new 300B PSE off eBay for delivery in late Jan or early Feb. Very much looking forward to hearing it compared to my Coincident Frankenstein monoblocs driving my horn speakers.

Analog Addict 11-29-2022 10:20 AM

[QUOTE=Blackcat;1069080]Just ordered one of the new 300B PSE off eBay for delivery in late Jan or early Feb. Very much looking forward to hearing it compared to my Coincident Frankenstein monoblocs driving my horn speakers.[/QUOTE

I would hazard a guess that you will be selling the mono blocks after hearing the 300B PSE. We were all blown away by it....:music:

straitwire 12-02-2022 05:25 PM

Just picked up the chassis from the powder coater.

[IMG]https://i.imgur.com/NraXHZk.jpg[/IMG]
[IMG]https://i.imgur.com/xBGTBTz.jpg[/IMG]

cgn-dt-n 12-06-2022 02:44 PM

Hello,

does anyone know the 6H30Pi (6N30P - Octal) = 6SN7X tube or better has already had experience with it?

In terms of technical parameters, it can be classified somewhere between 6SN7 / 6SL7 / 6BX7.

Analog Addict 12-07-2022 01:48 PM

Quote:

Originally Posted by cgn-dt-n (Post 1069355)
Hello,

does anyone know the 6H30Pi (6N30P - Octal) = 6SN7X tube or better has already had experience with it?

In terms of technical parameters, it can be classified somewhere between 6SN7 / 6SL7 / 6BX7.

From Dennis…

“The 6H30 tests wonderful but to my ears there simply is not that air of realism like the 6SN7. And I’ve tried this tube in many designs and the same result. … an analytical sound from the 6H30 vs the musical presentation of the 6SN7”

YMMV

Aurjan 12-07-2022 02:20 PM

How can i order one of the Inspire amps?

cgn-dt-n 12-07-2022 03:06 PM

Thanks for the description, I almost thought so. This is how the tubes has been described in some forums. I like high resolution and lots of detail, but musicality comes first. So no tube that I will like. too bad, it is partly offered for a ridiculous price.

Masterlu 12-07-2022 03:34 PM

Quote:

Originally Posted by Aurjan (Post 1069414)
How can i order one of the Inspire amps?

Greetings

First you need to become a Subscriber, so you can send/receive PM’s and access our Marketplace.

https://www.audioaficionado.org/payments.php

Follow the link above.

FreddieFerric 12-07-2022 06:40 PM

Quote:

Originally Posted by Analog Addict (Post 1069023)
It's a volume/gain controil. The amp can be used without an preamp if the source has enough voltage...

And yes, it appears that the Kleen Sweep has already sold. However, if anyone wants one, contact Dennis through ebay email, or contact me here via PM.

Quote:

Originally Posted by Aurjan (Post 1069431)
How to order?
I live in Norway and would like to order one of these Inspire amps! Please inform me how to get in contact with the right guy! 😊

Follow Masterlu's advice and subscribe. (Some of the best money you can spend) Then you can send a PM to Analog Addict for the proper contact information.

Isaacc7 12-07-2022 10:27 PM

Quote:

Originally Posted by FreddieFerric (Post 1069436)
Follow Masterlu's advice and subscribe. (Some of the best money you can spend) Then you can send a PM to Analog Addict for the proper contact information.

You can also take your chances and wait for the amp you're interested in showing up in Dennis's ebay store. Getting in touch with Analog Addict is the better way to do it though.

Masterlu 12-07-2022 10:47 PM

Quote:

Originally Posted by FreddieFerric (Post 1069436)
Follow Masterlu's advice and subscribe. (Some of the best money you can spend) Then you can send a PM to Analog Addict for the proper contact information.

Correct, it is the only way you can buy one direct.

Aurjan 12-08-2022 03:10 AM

Ok, thanks for the advises! Subscribing it is, then 😊
You have to excuse my repeating question… just learning how to work this site…😂

Analog Addict 12-08-2022 09:34 AM

Thanks Ivan. We aim to please!


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