[AS1]

Dimensions (Metric): 320mm deep by 220mm wide by 143mm high
Dimensions (American): 12.6 inches deep by 8.66 inches wide by 5.62 inches

Holy crap! This amp is huge compared to a MT!

It looks deceptively similar in size in pictures, but it's 2.5 times deeper and 2 times wider!

 

[penguindude]

Quote:

Originally Posted by AS1 /img/forum/go_quote.gif Dimensions (Metric): 320mm deep by 220mm wide by 143mm high Dimensions (American): 12.6 inches deep by 8.66 inches wide by 5.62 inches Holy crap! This amp is huge compared to a MT! It looks deceptively similar in size in pictures, but it's 2.5 times deeper and 2 times wider!

The MT utilizes micro-tubes while the MK III/4/SE all use full-size ones.

 

[jjb]

the ebay add says the LD MK IV is capable of 45 volts peak-to-peak....!
would it drive K-1000's ??

Cheers
Jeff

 

[Noobzor]

Quote:

Originally Posted by AS1 /img/forum/go_quote.gif Dimensions (Metric): 320mm deep by 220mm wide by 143mm high Dimensions (American): 12.6 inches deep by 8.66 inches wide by 5.62 inches Holy crap! This amp is huge compared to a MT! It looks deceptively similar in size in pictures, but it's 2.5 times deeper and 2 times wider!

Owning both, yes its much larger, it sits next to its smaller brother on my rack. Sounds as if there is more clear mids and a tad bit more treble. With the eq bypassed it sounds alot diffrent, with my bass channels cranked it loves it. This is with 701s.

 

[wae5]

My SE developed a buzz that was more intense at the lowest volumes. To fix this all I did was give the SE it's own dedicated power line direct from the wall outlet and the problem miraculously disappeared.

 

[mreggen]

Just bought this amp from donor, and can't wait to get it. Has anyone by chance got to listen to it with the K701 and HD650's? How do they compare on it? Thanks

 

[Letsrock]

I just got the normal version. couldn't get the SE in Hong kong (can you believe this??!!) Anyway, using it with 701K now after burning in for 50+hrs. I am fairly satisfied with it but just wonder if there are any suggestions for tube rolling?

 

[mreggen]

did you mail david? Why couldn't you get the SE?
Quote:

Originally Posted by Letsrock /img/forum/go_quote.gif I just got the normal version. couldn't get the SE in Hong kong (can you believe this??!!) Anyway, using it with 701K now after burning in for 50+hrs. I am fairly satisfied with it but just wonder if there are any suggestions for tube rolling?

 

[Negatron]

Quote:

Originally Posted by Letsrock /img/forum/go_quote.gif I just got the normal version. couldn't get the SE in Hong kong (can you believe this??!!) Anyway, using it with 701K now after burning in for 50+hrs. I am fairly satisfied with it but just wonder if there are any suggestions for tube rolling?

At the risk of being drawn and quarted for my remarks, I believe Yang made a very considered choice with the tubes. My experiance is with the MKIII but the same essential circuit. The front end tubes may well be tweaked by using different manufacturers, but changes in tube type is going to change the bias and thus the impedance of the outputs. Both of which, I think he has nailed just right. The 6H30Pi is a great output for single ended push-pull.

Give it 2 or 3 hundred hours first. Just my 2 cents worth, heresy though it may be.

 

[Letsrock]

Quote:

Originally Posted by Negatron /img/forum/go_quote.gif At the risk of being drawn and quarted for my remarks, I believe Yang made a very considered choice with the tubes. My experiance is with the MKIII but the same essential circuit. The front end tubes may well be tweaked by using different manufacturers, but changes in tube type is going to change the bias and thus the impedance of the outputs. Both of which, I think he has nailed just right. The 6H30Pi is a great output for single ended push-pull. Give it 2 or 3 hundred hours first. Just my 2 cents worth, heresy though it may be.

Thanks Negatron,
I will take your advice and give it some more time first.

Cheers,

 

[xenithon]

Anyone know how the Mk IV SE stacks up against something like a Woo Audio WA6 (stock)?

 

[xenithon]

Also I have heard that the tube complement (from the one posted on pg. 1) has changed (upgraded):

Driver Tubes: used to be GE403A, now WE408A
Power Tubes: used to be 6H30PI, now E182CC

Anyone know if the above are indeed upgrades?

 

[Negatron]

Quote:

Originally Posted by xenithon /img/forum/go_quote.gif Also I have heard that the tube complement (from the one posted on pg. 1) has changed (upgraded): Driver Tubes: used to be GE403A, now WE408A Power Tubes: used to be 6H30PI, now E182CC Anyone know if the above are indeed upgrades?

The Western Electric would be an upgrade to the GE403A
Interesting about the E182cc That has slightly different transconductance than the 6H30PI but if they found a bunch of the Phillips or Amperex E182CC/7119 buy a bunch of extras and hoard them. Great tube.

 

[cclragnarok]

Quote:

Originally Posted by xenithon /img/forum/go_quote.gif Also I have heard that the tube complement (from the one posted on pg. 1) has changed (upgraded): Driver Tubes: used to be GE403A, now WE408A Power Tubes: used to be 6H30PI, now E182CC Anyone know if the above are indeed upgrades?

I believe the driver tubes of the SE used to be either the WE403A/WE403B (NOT GE) or the Mullard M8100. AFAIK, the WE408A is supposed to be pretty much the same as the WE403A/B, but with a different heater voltage.

There is probably a little switch in the amp for adjusting the heater voltage.

 

[xenithon]

Thanks for the info guys....still a toss up between the stock WA6 (transformer) and the Mk IV SE (OTL).....hmmmm....decisions, decision.