[Joaquin Dinero]

Probably because McIntosh is their biggest client so they price match to keep McIntosh happy. The 12BH7a doesn’t really affect the sound so that tube value from nearly any supplier is very likely going to keep the MHA200 sound signature in tact.

What is that tube for if it doesn't affect the sound ?

 

[TSAVJason]

What is that tube for if it doesn't affect the sound ?

The 12BH7a …. The output tubes. You can replace them with almost any good tube of equivalent value and likely won’t change the sound much if at all.

 

[chriscarstens]

I tried this amp at the SoCal CanJam. I was surprised by how small it was.

 

[Slim1970]

I tried this amp at the SoCal CanJam. I was surprised by how small it was.

How did it sound to you? I have one incoming?

 

[vo_obgyn]

Yup - it turns out one of the 12BH7a's went bad. When I swapped the 12BH7a's from left to right, the static moved from left to right...though once the amp is warmed up for about 30 min, the static is almost completely gone.

Stock tubes are about 6 months old...but full disclosure, I accidently left the amp running continuous sound via a video game for around a week a few months ago - so I'm not completely surprised a tube went bad...

I have a new set of stock 12BH7a's on order from McIntosh...of note, McIntosh only warranty's tubes for 60 days...

Does anyone know who makes the stock 12BH7a's for McIntosh? Suspect I could probably save $20 a tube going that route...

Cheers

I was wondering, how much would it cost to get a new set of tubes from McIintosh through your dealer?

 

[TSAVJason]

I was wondering, how much would it cost to get a new set of tubes from McIintosh through your dealer?

That would depend on the dealer and country. As a reference about $220-250 USD depending on the variables I just provided.

 

[cykin]

I am still in warranty. The dealer is going to send me the new tube. Cheers

 

[vo_obgyn]

That would depend on the dealer and country. As a reference about $220-250 USD depending on the variables I just provided.

Ok thanks Jason

 

[James824]

On my short list for a tube amp for my main system.

 

[qboogie]

On my short list for a tube amp for my main system.

Which cans will you be using with this amp?

 

[Slim1970]

Which cans will you be using with this amp?

How does the TC’s sound on the MHA200?

 

[ThanatosVI]

How does the TC’s sound on the MHA200?

Very interesting question.
The TC should be one of the few with too high power requirements for the MHA200

 

[James824]

I will be using HD800

 

[Blacksun]

Noob question here... Are you not supposed to leave your tube amps on? I listen to mine daily and typically leave them along with the DAC always on...

 

[ThanatosVI]

Noob question here... Are you not supposed to leave your tube amps on?

You are supposed to turn them off after usage.