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  3. 138685-118117

Real Monster Monoblock Tube Amplifier

http://http//www.jadis-electronics.com/photos/ja500/45/2/ja500_last_jpeg_site.jpg


About 18 years ago, I got used Jadis 500 Monoblocks to drive B&W 800 with 14 inch woofer.

Jadis 500 give 400W tube power with 12 KT88 tubes on each monoblocks.

The Power supplies are separate so it consists of 4 blocks with 120 LB each.

It had the most powerful bass and wide soundstage that I had experienced much better than Krell KSA 150.


Since I could not use it during summer because of too much heat generated , I sold the Jadis after using it for 3 years without much loss since I got used one at good price.

Now my speaker (Lansche 4.1) is not very power hungry (99db/W spec, real no. close to 94) with internal SS amplifier to drive two 10 inch bass units.

So I may not need another monster monoblock but I keep old memory of Jadis 500 which is a real monster .

128x128shkong78
6 responses Add your response
shkong78's avatar
shkong78 OP
1,485 posts
 
Lyngdorf 3400 claim to put out 400 W to 4 ohm speakers.

It’s weight is less than 1/20th of Jadis 500 even with dac and room correction.

Someday I may try that one instead of monster monoblocks.

By the way I have done room correction using Accuphase Dg 28 for 15 years.

I am also curious between the difference of effect between Accuphase and Lyngdorf.
noromance's avatar
noromance
9,771 posts
 
It's all about efficiency of operation. The Jadis specs show 350w output for 1000w consumption. A class D is more efficient hence a smaller power supply etc.
shkong78's avatar
shkong78 OP
1,485 posts
 
Somehow tube 400W appears to be more powerful than SS 400W.

These days tiny D amplifier claim to put out 400W.
noromance's avatar
noromance
9,771 posts
 
Sure is a monster. I have a 90 pound tube (KT88/6550) amp in storage so I have a small idea of what it must be like!
shkong78's avatar
shkong78 OP
1,485 posts
 
thanks for the fixed link

I will not go back to Jadis 500 but it was a quite moment to use it for 3 years.
noromance's avatar
noromance
9,771 posts
 
Fixed link.
http://www.jadis-electronics.com/photos/ja500/45/2/ja500_last_jpeg_site.jpg
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