My new amp : SP The Dragon
Nov 6, 2008 at 5:04 AM Thread Starter Post #1 of 54

pompon

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On top to bottom:

- SP MPX3-Slam
- AudioResearch CD3MK2
- SP Dragon
- RSA Apache

IMG_8710.jpg


I have many tubes ... will have to figure wich one I prefer.

ATM, I use Tung-Sol 2C51 as input and Centron 6528a as output.

Thoses tubes can't power my Denon D5000 (bass distord) but on my MPX3, I use 6SN7GT as input and 2 x TungSol 5687 as output and they can power D5000 without problem. I guess the 5687 are more powerfull tubes than 6528a.

Dragon is more on the energic side compared to my mpx3. It's more easy to relax with mpx3 ... with dragon I am more electrified.

Will roll somes tubes to see what happend ...
 
Nov 6, 2008 at 5:51 AM Post #2 of 54

tourmaline

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Quote:

Originally Posted by pompon /img/forum/go_quote.gif
On top to bottom:

- SP MPX3-Slam
- AudioResearch CD3MK2
- SP Dragon
- RSA Apache

IMG_8710.jpg


I have many tubes ... will have to figure wich one I prefer.

ATM, I use Tung-Sol 2C51 as input and Centron 6528a as output.

Thoses tubes can't power my Denon D5000 (bass distord) but on my MPX3, I use 6SN7GT as input and 2 x TungSol 5687 as output and they can power D5000 without problem. I guess the 5687 are more powerfull tubes than 6528a.

Dragon is more on the energic side compared to my mpx3. It's more easy to relax with mpx3 ... with dragon I am more electrified.

Will roll somes tubes to see what happend ...



In fact most 6sn7 type of tubes don't have that much output power at all. ranging from 1 to 5 watts or so.

wgta has more power and is hardly turned on...older tubes burn faster, like the w types and burn much faster since they burn 40% or so over their capacity!

6sn7 is therefor most used as driver tube for larger more powerfull tubes liek the 300B!
 
Nov 6, 2008 at 6:14 AM Post #3 of 54

nikongod

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Quote:

Originally Posted by pompon /img/forum/go_quote.gif
Thoses tubes can't power my Denon D5000 (bass distord) but on my MPX3, I use 6SN7GT as input and 2 x TungSol 5687 as output and they can power D5000 without problem. I guess the 5687 are more powerfull tubes than 6528a.


Something is wrong if the dragon cant run the D5000. I heard it a summer or so ago in Maryland, and it was AWESOME. I did not hear it with the D5000, but a whole stack of grados. the D5000 is harder to drive than a grado, but it took the grados and they played VERY well.

I would make triple sure that the dragon is set up right. With all the tube rolling options, things can be confusing if you just got it. The 2 amps should both have NO problems with the D5000, but they will probably have different sound characteristics.

ooh, and welcome to team singlepower
 
Nov 6, 2008 at 3:43 PM Post #4 of 54

krmathis

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Congratulations!
biggrin.gif

Bet you have waited a loooong time for this one. So it better be great.
 
Nov 6, 2008 at 5:31 PM Post #5 of 54

purk

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Nice. Now we know who got the SP Dragon. A great amp you have!!! Wonder if Laine misses his amp or not?
 
Nov 6, 2008 at 5:36 PM Post #6 of 54

Skylab

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The 6528 has WAAAAAY more power than a 6SN7 - literally 10 times. That thing has to be able to drive the Denon.
 
Nov 6, 2008 at 6:09 PM Post #7 of 54

mikeymad

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nice little tower of power.....

looks like the dragon should be on top... give it some room to breath.... :)

Cheers,
 
Nov 6, 2008 at 8:57 PM Post #8 of 54

pompon

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I need somes infos about tubes.

Low ohms headphones requires more current (AC) ?
High ohms headphones requires more voltage (DC) ?

What is the role of the driver tube and the output tubes. Somes rules to follow ?
 
Nov 6, 2008 at 10:58 PM Post #10 of 54

jamato8

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Something is wrong, somewhere.
 
Nov 6, 2008 at 11:40 PM Post #11 of 54

sacd lover

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Quote:

Originally Posted by tourmaline /img/forum/go_quote.gif
In fact most 6sn7 type of tubes don't have that much output power at all. ranging from 1 to 5 watts or so.

wgta has more power and is hardly turned on...older tubes burn faster, like the w types and burn much faster since they burn 40% or so over their capacity!

6sn7 is therefor most used as driver tube for larger more powerfull tubes liek the 300B!



I see two open sockets .... where are the driver stage tubes?
 
Nov 7, 2008 at 12:37 AM Post #12 of 54

pompon

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I tried:

Output : Centron 6528a
Driver : 2c51 (with adapter) / 6sn7 / 5687 (with adapter)

Same problems

With the 5998 in output with the 2c51 as driver, they drive my Denon properly.
 
Nov 7, 2008 at 12:43 AM Post #13 of 54

pompon

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Socket 1 (front) is gain socket 1.
Socket 2-3 (middle) is gain (stage 2)
Socket 4-5 (back) are output socket.

I see in instruction it's for K1000 and K340 ...but no clue if I can use it for regular headphone (or volume control will step too much with the second gain ??).
 
Nov 7, 2008 at 3:28 AM Post #15 of 54

Gollie

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Looks nice!

Sound impressions compared to the MPX3?

How long was your wait?
 

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