YaQin MC-10K Valve Amp Innards Pictures Up
 

Fleetie wrote:

Actually that seller has abandoned selling the MC-10K and now prefers
to sell the MC-10L, which uses EL34 valves.

I might be wrong, but 50W into 6 ohms seems a lot to pull out of a pair of
EL34s - that's getting into gutar amp territory, and there's no way a guitar
amp will stay clean at that kind of o/p (more like a veritable arse-kicking
unless you're very gentle on the strings). By contrast, my EL34 hifi jobbie
is rated at 20W.


--
Wally
www.artbywally.com
www.wally.myby.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

"StaffBull" wrote
I am thinking of having one of these impotred off e-bay would you recommend
it? Is this model a push pull amp or class a?
Cheers

I would recommend it as being a **** of a lot of amp for the money,
but only IF you are a little au fait with electronics. I had a set
of cathode resistors blow up. I soldered in the new ones properly
this evening and it's fine again now. Not rocket science if I can
manage it without help.

Actually that seller has abandoned selling the MC-10K and now prefers
to sell the MC-10L, which uses EL34 valves.

I think both are probably great value for money if you want a damn
good value-for-money entry-level valve amp.

The seller ("Hi-Ends") I bought from, has been very supportive, and
co-operative, even when I told him the 3 cathode resistors associated
with one of the output valves had blown up. Today I received TWO
replacement output valves and a bunch of resistors (3) to replace
the broken ones.


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

Fleetie wrote:

Maybe you're right; not sure what distortion that amp's rated at at
that power, if indeed it does manage to output that much.

Well, it doesn't quote the output as RMS, but a pair of push-pull EL34s can
put out 50W, so it is feasible that its designed to deliver that much.
There's also a distortion figure of 0.5%, but it doesn't say what o/p power
that applies to. :-)

Another thing I was thinking about was the rating of the PSU - 300W
consumption to power two 50W amps. My 50W guitar amp consumes (IIRC) 180W -
and has a valve count of 4 double triodes (mostly ECC83) and two EL34. I
don't know how many little-valve heaters the MC-10L has to supply, but my
non-expert feeling is that the PSU is a tad underpowered.

Overall, I get the feeling that the amp will have headroom, but might not
sound too great if it has to use it.


--
Wally
www.artbywally.com
www.wally.myby.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

"Wally" wrote
Fleetie wrote:

Actually that seller has abandoned selling the MC-10K and now prefers
to sell the MC-10L, which uses EL34 valves.

I might be wrong, but 50W into 6 ohms seems a lot to pull out of a pair of
EL34s - that's getting into gutar amp territory, and there's no way a guitar
amp will stay clean at that kind of o/p (more like a veritable arse-kicking
unless you're very gentle on the strings). By contrast, my EL34 hifi jobbie
is rated at 20W.

Maybe you're right; not sure what distortion that amp's rated at at that
power, if indeed it does manage to output that much.


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

Did you have to pay imort duty on it coming in and if you dont mind me
asking how much was it in total.
The other option I am looking at is a secondhand Naim pre/power combo - but
I am very tempted by a valve amp.
"Fleetie" wrote in message
...
In case anyone is interested, I've just put these up.

They show the insides of the amp.

http://www.fleetie.demon.co.uk/yaqin.html

Please don't visit more than once or twice each; I don't want my
bandwidth allocation eaten up.


Thanks.


Martin

YaQin MC-10K Valve Amp Innards Pictures Up
 

Another thing I was thinking about was the rating of the PSU - 300W
consumption to power two 50W amps. My 50W guitar amp consumes (IIRC) 180W -
and has a valve count of 4 double triodes (mostly ECC83) and two EL34. I
don't know how many little-valve heaters the MC-10L has to supply, but my
non-expert feeling is that the PSU is a tad underpowered.

Overall, I get the feeling that the amp will have headroom, but might not
sound too great if it has to use it.

Wel, can't speak much about the MC-10L (EL34), but assuming it has the same
size mains xformer as my MC-10K, well, it looks like a pretty huge xformer
to me.

I was surprised when I took the can off it and found it literally filled the
inside of the can snugly.

It's a toroidal whose diameter is exactly the same as that of a CD, and
whose height is about 1cm more than the diameter of a CD.

I know valve amps are inefficient, but I'd have thought something that
size ought to be good for 2x50W without too much trouble.


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

sounds cheap to me - I've just bought a pair of B&W CDM1 SE's so could do
with an amp upgrade for them
"Fleetie" wrote in message
...
"StaffBull" wrote
Did you have to pay imort duty on it coming in and if you dont mind me
asking how much was it in total.
The other option I am looking at is a secondhand Naim pre/power combo -
but
I am very tempted by a valve amp.

Ebay final price : 250
Ebay Shipping Cost : 80
Import Duty etc. : 27

Total : 357 GBP


Additional costs arising directly from purchase of this amp:

Dynaudio Audience 52SE speakers: 900
Cable for above: 50 (overkill)
Pro-Ject Tube Box phono preamp: 300
Interconnect for above: 30 (overkill)

Total of additional costs: 1280 GBP


Whether it was "expensive" depends upon how you look at it!


Martin
--
M.A.Poyser Tel.: 07967
110890
Manchester, U.K.
http://www.fleetie.demon.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

On Wed, 11 Aug 2004 22:38:37 GMT, "Fleetie"
wrote:

"StaffBull" wrote
Did you have to pay imort duty on it coming in and if you dont mind me
asking how much was it in total.
The other option I am looking at is a secondhand Naim pre/power combo - but
I am very tempted by a valve amp.

Ebay final price : 250
Ebay Shipping Cost : 80
Import Duty etc. : 27

Total : 357 GBP


Additional costs arising directly from purchase of this amp:

Dynaudio Audience 52SE speakers: 900
Cable for above: 50 (overkill)
Pro-Ject Tube Box phono preamp: 300
Interconnect for above: 30 (overkill)

Total of additional costs: 1280 GBP


Whether it was "expensive" depends upon how you look at it!

Great speakers - now all you need is a decent amp to drive them! :-)
--

Stewart Pinkerton | Music is Art - Audio is Engineering

YaQin MC-10K Valve Amp Innards Pictures Up
 

"StaffBull" wrote
Did you have to pay imort duty on it coming in and if you dont mind me
asking how much was it in total.
The other option I am looking at is a secondhand Naim pre/power combo - but
I am very tempted by a valve amp.

Ebay final price : 250
Ebay Shipping Cost : 80
Import Duty etc. : 27

Total : 357 GBP


Additional costs arising directly from purchase of this amp:

Dynaudio Audience 52SE speakers: 900
Cable for above: 50 (overkill)
Pro-Ject Tube Box phono preamp: 300
Interconnect for above: 30 (overkill)

Total of additional costs: 1280 GBP


Whether it was "expensive" depends upon how you look at it!


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk

YaQin MC-10K Valve Amp Innards Pictures Up
 

On Wed, 11 Aug 2004 22:38:37 GMT, "Fleetie"
wrote:

snip

Ebay final price : 250
Ebay Shipping Cost : 80
Import Duty etc. : 27

Total : 357 GBP

snip

Did you not have to pay VAT when the amp entered the country?
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