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Anyone have experience with the Bellari HA540? - Page 2

post #16 of 28
The bellari caught my attention, but I coudnt find much on it either. What are the thoughts on pairing it with AKG Q701's?
post #17 of 28

Some people really like this pairing.  It has a lot of gain, which is nice for the hard to drive 701s.  Plus, you can tube roll to get the sound you desire.  There's a few youtube videos talking about this pairing that all seem pretty favorable.
 

Quote:
Originally Posted by toyman View Post

The bellari caught my attention, but I coudnt find much on it either. What are the thoughts on pairing it with AKG Q701's?


 

post #18 of 28


+1 on a DAP sounding fantastic with this amp. I do most of my listening via laptop (DAC to Bellari) using ASIO. The SQ is still incredible but the DAP is just a notch better. I think it has to do with analog simplicity, computers just tend to have several steps even after you have eliminated most of them. BTW what rating is the Amperex Bugle you finally settled on? Those are fairly rare aren't they. Ultrasones eh ... haven't had a chance to test drive them but how do they compare to your LE-5 or HE-500 if you have had a chance to hear it?

 

Quote:
Originally Posted by gjkphd View Post

My 2 cents based on recent purchase of a Bellari 540.  I bought it for a bedroom rig I wanted to put together.  I have to tell you, with the right tube and phones I have enjoyed this amp soooo much,  to me the sound is crisper, clearer, with more micro details, than my main rig, which includes a tube amp costing 10 X the Bellari.  May be digital source is better than CD's is part of it.  But I have a Cowon X7 player filled with FLAC files, Ultrasone Ed. 8's with Signal Cable 1/4 to RCA cable. the sound is unbelievable.  I've been into this stuff for 40 years btw.  I tube rolled and to me the sweet spot was found with an Amperex Bugle Boy.  Plenty of gain form y HIFI MAN LE-5's btw. 



 

post #19 of 28
Quote:
Originally Posted by Terja View Post


+1 on a DAP sounding fantastic with this amp. I do most of my listening via laptop (DAC to Bellari) using ASIO. The SQ is still incredible but the DAP is just a notch better. I think it has to do with analog simplicity, computers just tend to have several steps even after you have eliminated most of them. BTW what rating is the Amperex Bugle you finally settled on? Those are fairly rare aren't they. Ultrasones eh ... haven't had a chance to test drive them but how do they compare to your LE-5 or HE-500 if you have had a chance to hear it?

 



 

pretty much anything sounds good with this amp, even lcd 2/3 and he-5 :)


 

 

post #20 of 28

Anyone experiencing channel imbalance with the HA540? I use it in stock form with the Ruby tube, and is seems like left channel is slightly louder than the right one.  It is more pronounced at low volumes, and as i turn the knob up it sort of equalizes at around 12 o'clock.  But its annoying because my listening level is at 9-10 o'clock, and imbalance is quite obvious when paying attention to the sound.  Can it be because of the tube, or is the volume pot bad?

post #21 of 28
Thread Starter 
Quote:
Originally Posted by derbigpr View Post

Anyone experiencing channel imbalance with the HA540? I use it in stock form with the Ruby tube, and is seems like left channel is slightly louder than the right one.  It is more pronounced at low volumes, and as i turn the knob up it sort of equalizes at around 12 o'clock.  But its annoying because my listening level is at 9-10 o'clock, and imbalance is quite obvious when paying attention to the sound.  Can it be because of the tube, or is the volume pot bad?

 

Sounds like you have too much gain. Are you perhaps plugging your source into the high gain input by mistake? Or is there a way to lower it's volume?

post #22 of 28

I just realised that with the Bellari you still get some sound out of the other input even when the other one is selected. For example if you plug your source into the low input you do get some sound out of the high input -- so make sure the input selection button on the top matches where you have plugged your source. Thanks for reminding me manveru.
 

post #23 of 28
Quote:
Originally Posted by manveru View Post

 

Sounds like you have too much gain. Are you perhaps plugging your source into the high gain input by mistake? Or is there a way to lower it's volume?

 

Nah its not too much gain. It's the same when using low gain or high gain inputs.  Channels are simply unbalanced up to about 11 o'clock on volume knob, then imbalance disappears. I don't know why this happens, but its bothers me a lot, because its otherwise a great amp.

post #24 of 28
Thread Starter 
Quote:
Originally Posted by derbigpr View Post

Nah its not too much gain. It's the same when using low gain or high gain inputs.  Channels are simply unbalanced up to about 11 o'clock on volume knob, then imbalance disappears. I don't know why this happens, but its bothers me a lot, because its otherwise a great amp.

 

Hm, that sucks. Maybe just a bad volume pot...

post #25 of 28
Quote:
Originally Posted by derbigpr View Post

 

Nah its not too much gain. It's the same when using low gain or high gain inputs.  Channels are simply unbalanced up to about 11 o'clock on volume knob, then imbalance disappears. I don't know why this happens, but its bothers me a lot, because its otherwise a great amp.

 

Have you tried tube rolling to see if the imbalance changes or disappears?

post #26 of 28
Quote:
Originally Posted by Terja View Post

 

Have you tried tube rolling to see if the imbalance changes or disappears?

Yes, this is your answer. The stock ruby tube is garbage.

post #27 of 28
Hey derbigpr - I've had the ha540 for a year and a half and had a bad channel imbalance.

I tried many different tubes which seemed to help for about an hour of listening and would then go back to a louder right channel. This drove me crazy and I was unable to listen to it.

I eventually sent it back to rolls who just stuck another crappy ruby 12ax7 in it and sent it back to me. This did not resolve the issue. I was frustrated and just put it away for a few months until last week when I decided to send it back to Rolls with a better explanation of the problem. I told them not to just stick a new tube in it and send it back. I told them that I had rolled over 6 tubes and that something else must be wrong like maybe the volume pot.

This time around they discovered a solder bridge which they fixed. It works well now with a new tube although I've found that my old tubes were ruined by the bellari. They all have weak left channels... The bridged solder joint must have damaged the tubes.

Just thought I'd chime in.... If you have the imbalance maybe only try one other tube that you know works. If it fails to correct the imbalance fill out an RA and send it back in. They are good about repairs and did not charge even though it was out of warranty.
post #28 of 28
Quote:
Originally Posted by SourceGuy View Post

Hey derbigpr - I've had the ha540 for a year and a half and had a bad channel imbalance.
I tried many different tubes which seemed to help for about an hour of listening and would then go back to a louder right channel. This drove me crazy and I was unable to listen to it.
I eventually sent it back to rolls who just stuck another crappy ruby 12ax7 in it and sent it back to me. This did not resolve the issue. I was frustrated and just put it away for a few months until last week when I decided to send it back to Rolls with a better explanation of the problem. I told them not to just stick a new tube in it and send it back. I told them that I had rolled over 6 tubes and that something else must be wrong like maybe the volume pot.
This time around they discovered a solder bridge which they fixed. It works well now with a new tube although I've found that my old tubes were ruined by the bellari. They all have weak left channels... The bridged solder joint must have damaged the tubes.
Just thought I'd chime in.... If you have the imbalance maybe only try one other tube that you know works. If it fails to correct the imbalance fill out an RA and send it back in. They are good about repairs and did not charge even though it was out of warranty.

 

 

I'm actually getting rid of HA540. Selling it at the moment because it sounds NOTICEABLY worse than my Onkyo integrated amp with my main headphones ,which are DT880 and HD650.

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