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

khashmi 09-30-2022 03:14 PM

It just struck me last night that I’ll be at Decware next week where there are going to be plenty of ppl skilled to perform surgery on the tube. So I sent a picture and at least one member is going to bring his solder, iron, and epoxy to seal the deal.

Isaacc7 09-30-2022 05:17 PM

Quote:

Originally Posted by khashmi (Post 1066915)
It just struck me last night that I値l be at Decware next week where there are going to be plenty of ppl skilled to perform surgery on the tube. So I sent a picture and at least one member is going to bring his solder, iron, and epoxy to seal the deal.

Woo! that's awesome! I think I could probably handle doing it myself if I had a soldering iron or even a place to do it lol.

Isaacc7 09-30-2022 05:18 PM

Quote:

Originally Posted by khashmi (Post 1066915)
It just struck me last night that I値l be at Decware next week where there are going to be plenty of ppl skilled to perform surgery on the tube. So I sent a picture and at least one member is going to bring his solder, iron, and epoxy to seal the deal.

You might have already answered this, if so sorry. Are you taking your amp there?

khashmi 09-30-2022 07:13 PM

Unfortunately not. I知 flying and due to weight and space restrictions, that just wasn稚 practical. It might have been different if I was driving.

Update: Another attendee of the fest has agreed to bring his solder, iron, and epoxy to fix the 807.

Isaacc7 09-30-2022 10:27 PM

I switched over to the Mullard 807 just because it has been so long since I last heard it and had never used it with the 14n7. Compared to the Cossor these sound "smoother" and a little more reserved. Very pleasing sound, possibly more laid back. The Cossor still has more detail and therefore more space. The Mullard tubes are about 1/3 less expensive so fantastic bargains.

Rooze 10-03-2022 04:36 PM

Hello folks. I知 new to the forum and have spent several hours reading through this long and informative thread, primarily looking for tube recommendations for an Inspire KT88 SEP that I purchased over the weekend.
I知 using a pair of Decware Zen Master clones, an open baffle / fullrange driver design rated 100dB / 8 ohm.

I致e a number of tube options on hand that I値l begin experimenting with soon, but I wondered if someone might be willing to suggest a combination of output, input/driver and rectifier tubes that would deliver a warm, lush sound in the way of classic designs like the old Leak Stereo 20 that I remember so fondly, or even some of the older CJs?

With the stock GL KT88 the sound is detailed, dynamic, open/transparent, but lacks a little tube warmth and bloom.

Having only acquired the Inspire a couple days ago I haven稚 played around much with cables and ancillaries, but I like what I hear so far and I知 just looking for a 倉uick-start to get me going in the right direction.

Many thanks!

Masterlu 10-03-2022 05:02 PM

Rooze… Welcome to AA! :wave:

Isaacc7 10-03-2022 06:17 PM

Quote:

Originally Posted by Rooze (Post 1067070)
Hello folks. I知 new to the forum and have spent several hours reading through this long and informative thread, primarily looking for tube recommendations for an Inspire KT88 SEP that I purchased over the weekend.
I知 using a pair of Decware Zen Master clones, an open baffle / fullrange driver design rated 100dB / 8 ohm.

I致e a number of tube options on hand that I値l begin experimenting with soon, but I wondered if someone might be willing to suggest a combination of output, input/driver and rectifier tubes that would deliver a warm, lush sound in the way of classic designs like the old Leak Stereo 20 that I remember so fondly, or even some of the older CJs?

With the stock GL KT88 the sound is detailed, dynamic, open/transparent, but lacks a little tube warmth and bloom.

Having only acquired the Inspire a couple days ago I haven稚 played around much with cables and ancillaries, but I like what I hear so far and I知 just looking for a 倉uick-start to get me going in the right direction.

Many thanks!

Hmm, think it痴 going to be tough to get that kind of sound out of the Firebottle. It痴 just such a different design. Off the the top of my head the 努armest combo I致e had in mine is probably Tungsol 6k6gt with a Raytheon gf8g input tube. Oh and a Tungsol 5w4gt rectifier. I also think the GE 6bg6ga is a pretty warm tube in the Firebottle using a 5u4gt rectifier.

In the end I think the KT88 Firebottle will always sound more open and 鍍ransparent than classic push pull amps. Personally I think those old amps ended up masking the music and the Firebottle lets it come through. I once loved a system built around a McIntosh mc240 and big Spendor BBC monitors. So warm, so lush! But after a while I realized that everything sounded like that on that system. I like chocolate cake but it turns out I can稚 eat it for breakfast lunch and dinner.

One of my absolute favorite things about the Firebottle KT88 is how many shades of sound you can get with different tubes. I致e had a blast trying out many different tubes. I started a thread in this forum just about tube rolling.

cgn-dt-n 10-04-2022 08:28 AM

Quote:

Originally Posted by Rooze (Post 1067070)
Hello folks. I知 new to the forum and have spent several hours reading through this long and informative thread, primarily looking for tube recommendations for an Inspire KT88 SEP that I purchased over the weekend.
I知 using a pair of Decware Zen Master clones, an open baffle / fullrange driver design rated 100dB / 8 ohm.

I致e a number of tube options on hand that I値l begin experimenting with soon, but I wondered if someone might be willing to suggest a combination of output, input/driver and rectifier tubes that would deliver a warm, lush sound in the way of classic designs like the old Leak Stereo 20 that I remember so fondly, or even some of the older CJs?

With the stock GL KT88 the sound is detailed, dynamic, open/transparent, but lacks a little tube warmth and bloom.

Having only acquired the Inspire a couple days ago I haven稚 played around much with cables and ancillaries, but I like what I hear so far and I知 just looking for a 倉uick-start to get me going in the right direction.

Many thanks!

Hi Rooze,

I don't think it's because of the GL KT 88. They solve well but have no bright sound and a slight emphasis in the upper bass range.

This should actually match your sound description.

KT 170 and RCA 6L6 are similar. slight overemphasis in the upper bass range.

Play more with the driver tubes.

6SL7 more heights
6SN7 balanced
6BX7 more bass

cgn-dt-n 10-04-2022 08:35 AM

I finally managed to listen to the Marconi 6V6GT.
operated for about 80 hours. Very balanced, great with any kind of music.

If I hadn't heard the Fivre 6V6 GT and my Kron KT88 as a comparison, you could listen to music very well in combination with the Melz and Sylvania 6SN7, long-term suitable, nothing annoys.


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