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Inspire by Dennis Had Enjoying Vacuum Tube Audio

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  #6421  
Old 05-15-2021, 08:48 PM
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Masterlu Masterlu is online now
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PipHelix... Welcome to AA!
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  #6422  
Old 05-15-2021, 10:37 PM
Isaacc7 Isaacc7 is offline
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Quote:
Originally Posted by PipHelix View Post
I’m interested in an Inspire amplifier but keep getting beaten to the punch in buying one on either AudioMart or eBay.

I’ve noticed that prices on eBay straight from the maker have recently just about doubled from what they were a few months ago now that the units have a volume knob and don’t require a preamp.

Can anyone speak to why the prices have climbed so much?
The last amp I saw on eBay was a 300b integrated amp with Western Electric tubes. I think it was around 3k right? Keep in mind those tubes by themselves are $1500! I bet the regular kt88 Firebottle amps will be back at the normal prices.
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  #6423  
Old 05-15-2021, 11:17 PM
Bombadil Bombadil is offline
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Quote:
Originally Posted by Isaacc7 View Post
The last amp I saw on eBay was a 300b integrated amp with Western Electric tubes. I think it was around 3k right? Keep in mind those tubes by themselves are $1500! I bet the regular kt88 Firebottle amps will be back at the normal prices.

He is listing the 300B amp at $3995. 6 wpc.

On April 19th he listed a SE KT88 amp at $1895.
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  #6424  
Old 05-16-2021, 01:56 PM
caryking caryking is offline
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I listened to that 300B yesterday. I stopped in for a visit and he had it burning in. Sounds extremely impressive.
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  #6425  
Old 05-16-2021, 02:06 PM
Isaacc7 Isaacc7 is offline
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Quote:
Originally Posted by Bombadil View Post
He is listing the 300B amp at $3995. 6 wpc.

On April 19th he listed a SE KT88 amp at $1895.
Right, I'm sure that the KT88 will be available again either on eBay or directly from Dennis. They are well worth waiting for IMO.

As good as quality 300b Amps are, I've never been able to stomach the prices. One of the best systems I've ever heard was built around a push pull 300b amp (over 3k in tubes alone!) and Quad ESL 63 speakers. The best single ended 300b system I've heard used Aventguard speakers. Both of those systems are a bit rich for me. I have never heard a single driver speaker that I could live with.

As amazing as those were, single ended amps using pentodes like the Firebottle KT88 aren't that far off and they are less than half the price. Amps using alternative triodes like the 6080, 6bl7, or 6B4 are options as well. Single ended pentode tubes, wired in triode or not, are once again my tube type of choice. Plus, they have just enough more power to be able to use slightly less exotic speakers which also saves a lot of money.

My first single ended amp was a pair of Golden Tube Audio SE40 using 6(!) 6l6 per side. Had a Jolida EL84 for a bit and then a push pull 6bl7. Skip ahead 10 years or so and I had an Audio Mirror set of mono blocks that used parallel 6as7/6080 tubes.

Like I mentioned earlier I am now using 7581a tubes (a 6l6 variant) in my kt88 Firebottle with Phase Technology PC 3.5 speakers and I think it is a fabulous system.
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  #6426  
Old 05-16-2021, 03:18 PM
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straitwire straitwire is offline
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Hey guys, Dennis has a KT88 listed on eBay.
Lately he's been busy filling orders for 300B's.
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  #6427  
Old 05-16-2021, 06:09 PM
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caryking... Welcome to AA!
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  #6428  
Old 05-16-2021, 07:32 PM
caryking caryking is offline
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Thank You! I’ve been doing this audio thing for 30+ years... I’ve been on other boards, but not here. Saw the forums dedicated to Cary Audio and Inspire by Dennis Had, so I decided to join.

Saw both of those Inspire amps on Saturday, at his place. Aesthetically, they really remind me of early Cary Audio stuff.
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  #6429  
Old 05-25-2021, 02:55 PM
Isaacc7 Isaacc7 is offline
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Does anyone know what the input impedance of the firebaottle KT88 amp is?
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  #6430  
Old 05-25-2021, 04:55 PM
Comzee Comzee is offline
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Quote:
Originally Posted by Isaacc7 View Post
Does anyone know what the input impedance of the firebaottle KT88 amp is?
100k ohm
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