[JKDJedi]

Only 6C8G in the MCTH this tube draws in line the same as a 6922. The 6F8G draws to much current...could damage your amp.

I thought the 6C8G had the higher gain

 

[Slade01]

I thought the 6C8G had the higher gain

it does, but the amount of current heater draw has no effect (seperate from) gain. 6F8G draws 600ma, the 6C8G draws 300ma. MCTH is spec'd for tubes to draw at 300ma hence 6922 or 6C8G are the safer bets.

 

[JKDJedi]

it does, but the amount of current heater draw has no effect (seperate from) gain. 6F8G draws 600ma, the 6C8G draws 300ma. MCTH is spec'd for tubes to draw at 300ma hence 6922 or 6C8G are the safer bets.

They should run cooler then... Interesting!

 

[Guidostrunk]

If you add an external LPS like an Acopian. You can run the amp at 600ma. I ran 6sn7 in mine for about 6 months with no issues whatsoever until I moved on to the Liquid Platinum.

The 6c8g isn't bad. Consider looking into 12at7 and 12au7. Soundstage like the 6c8g with the tonal balance of the 5670/396a tubes.

 

[Guidostrunk]

Forgot to mention that you'll need an adapter to run 12a*7.

 

[BrokeSkoolBoi]

Somebody asked why the LPS isn't a complete benefit.

The CTH isn't a perfect amp, the bass is too shy and it's rather polite in it's presentation. An LPS increases the bass presence, but it also increases everything else, this makes things sound claustrophobic.

Now where you once wanted a more forward tube /dac, you need a tube/dac with more chill. Frankly LPS CTH gave me a headache with the sdac all the time.

After removing the LPS, I tried the Tesla NOS '32' E88CC and it's the only upgrade I would recommend as it's cheap, brings more clarity to everything, and makes the sound slightly more engaging.

You can buy the tesla tube for $25 dollars, it's better than every other E88CC/6922 tube I've tried with stock CTH.

 

[lifeisbeautiful]

I posted this as a separate question. But, thought would ask it here too. How does the mass drop CTH compare to the Schiit Vali 2?
Thanks.

 

[sennfan83261]

I posted this as a separate question. But, thought would ask it here too. How does the mass drop CTH compare to the Schiit Vali 2?
Thanks.

Post #13 on the first page of this thread is a review of the CTH compared against the Vali 2.

 

[Zulkr9]

Does anyone own an MCTH and a sundara. to get things loud enough I need to go all the way to 3 oclock .-.

 

[ruinedx]

Does anyone own an MCTH and a sundara. to get things loud enough I need to go all the way to 3 oclock .-.

The Sundara demands a ton of power.

You may want to step up to the Liquid Platinum, it has more juice than the MCTH and a similar house sound

 

[47anLoken]

Does anyone own an MCTH and a sundara. to get things loud enough I need to go all the way to 3 oclock .-.

I've tried that combination. No problem at all for me, loud enough at 10 o'clock. About the same as my Sennheiser HD 6XX.

 

[wowyahoo]

I'm having trouble finding a 6922 to 6c8g adapter, 9 pin socket saver, and the 6c8g tung sol tube. Where do you buy these online? Do you have to find a online store overseas?

 

[JKDJedi]

I'm having trouble finding a 6922 to 6c8g adapter, 9 pin socket saver, and the 6c8g tung sol tube. Where do you buy these online? Do you have to find a online store overseas?

https://www.amazon.com/TUNG-SOL-Round-Coated-Amplitrex-Tested/dp/B07RQ6X4P4

and @Deyan can make that adapter for ya.

 

[sennfan83261]

I'm having trouble finding a 6922 to 6c8g adapter, 9 pin socket saver, and the 6c8g tung sol tube. Where do you buy these online? Do you have to find a online store overseas?

6C8G adapter: https://www.ebay.com/itm/1piece-Gol...N6-tube-converter-adapter-socket/193442645957

You will also need a 6922 socket saver unless you are going to widen the hole on top of your CTH chassis yourself.

As for Tung-Sol 6C8G's, they are good but not $100 better than Sylvania/Philco 6C8G's (Sylvania manufacturered tubes for Philco back then).

 

[Deyan]

6C8G adapter: https://www.ebay.com/itm/1piece-Gol...N6-tube-converter-adapter-socket/193442645957

You will also need a 6922 socket saver unless you are going to widen the hole on top of your CTH chassis yourself.

As for Tung-Sol 6C8G's, they are good but not $100 better than Sylvania/Philco 6C8G's (Sylvania manufacturered tubes for Philco back then).

Or an adapter that looks like this will eliminate the need for a socket saver: