2. amps-preamps
  3. 182155-130193

can you please help me around how to use my first tube amp?

Hi, I picked up on a whim an older tube amp, first I have ever had that is non automatic biasing and outside of that really no nothing about tube amps

Its a used 10 year old or so Rogue Audio Atlas Magnum power amp with KT 120 power tubes

the pre amp/dac will be RME adi-2 and speakers are Sonus Faber Lumina V's (4ohm)

I was thinking I would also also try it without preamp from a bluesound node

I believe the stock setting is 8ohm on the amp and you need to crack the lid to adjust down to 4

nervous about installing and biasing the tubes

can anybody advise what happens if I run the amp without the tubes being biased correctly?

also, can I run this from the 8ohm default so I dont have to open it up?

finally, how do I know when i need new power tubes and pre tubes?

any other advice will be appreciated

 

 

 

 

 

 

 

 

 

audiocanada

Showing 1 response by mod_asored

mod_asored
19 posts
 

I have had 3 (Tempest, Perseus, ST-100) Rogue products, all excellent, so you should be happy.

With these products, they are simple and cleanly laid out, I think you need to get comfortable with the insides. You will need to check the bias every 6 months, if you are going to change the output impedance, it is a simple wire change (if it is like what I've had), then there is any tube rolling which is on top with yours but requires general comfort with the product.

Good luck with it, I have nothing but positive stuff to say about Rogue and the people at Rogue are some of the best I have ever worked with.

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