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Bravo Audio - funny looking little tube amps - Page 121

post #1801 of 2605

Very satisfied with my Bravo Audio Ocean, anyway to mod it to get away the pop when i turn it on/off`? Right now I just unplug my headphone before starting/turning off.

post #1802 of 2605
Quote:
Originally Posted by Leonarfd View Post

Very satisfied with my Bravo Audio Ocean, anyway to mod it to get away the pop when i turn it on/off`? Right now I just unplug my headphone before starting/turning off.

Mod the switch for soft start.

post #1803 of 2605

Hehe, quite noob in the modding world. The hardest ive done is to switch op-amps in the past. Can you explain it abit more?

post #1804 of 2605
Just saying, unplugging your headphones before switching the power is generally the best practice, safer for your headphones (and hearing).
I've read about time delay circuits (like used in HT receivers, y'know how you turn them on, and after 2 seconds you hear a click and then the speakers go live?) and fade-in/fade-out that eases the power draw as you switch the power on/off. I don't know if those are built-in to potentiometers (I bet it is in some) or a separate circuit onto the PCB board, but you'll probably figure it out if you look for them.
post #1805 of 2605

I had a similar problem and it was the power supply. Contact the seller; they're pretty good to deal with.

post #1806 of 2605

Just burned this in for 20+ hours.  Definitely helps to burn in your tube amp.

post #1807 of 2605

Definitely, especially for the tube let it heat up, longer is better as some of the NOS tubes haven't been in use for 40 years or so.

post #1808 of 2605
Quote:
Originally Posted by DefQon View Post

Definitely, especially for the tube let it heat up, longer is better as some of the NOS tubes haven't been in use for 40 years or so.

 

Hey Def,

 

When I'm tube rolling do I have to have music playing to warm up a Tube or can I just switch the Amp on and leave it on for like 15 minutes?

 

Thanks!

post #1809 of 2605
Quote:
Originally Posted by blazingazn View Post

 

Hey Def,

 

When I'm tube rolling do I have to have music playing to warm up a Tube or can I just switch the Amp on and leave it on for like 15 minutes?

 

Thanks!

You can leave it on, though in my case it seems to warm up faster (the background buzz goes away faster anyway) when music is playing. I always turn my amp off before replacing a tube, turn it on and let it warm up (maybe eat a snack), then bias the tube. Correct biasing makes a huge difference compared to tuning it by ear.

post #1810 of 2605
My Bravo Audio Ocean tube amp was delivered today. This is my first foray into the tube world and I am already loving it!
Just to satisfy my inner DIY'er, I have just ordered the following components for mods -
 
1. Panasonic Capacitor 25volts 2200uF
2. IRF510PBF Mosfet
3. Panasonic Capacitor 3300uF 35V
 
I am not very much familiar with tube rolling and bias setting, so would like to check out the stock tube fr some time and would research on tube rolling at the same time.
My HD600 will be delivered tomorrow. Excited to pair them with this little tube amp!
post #1811 of 2605

No IRL510? ph34r.gif

post #1812 of 2605
Quote:
Originally Posted by blazingazn View Post

 

Hey Def,

 

When I'm tube rolling do I have to have music playing to warm up a Tube or can I just switch the Amp on and leave it on for like 15 minutes?

 

Thanks!

The essential point of tube warmup is so the tube adjusts to it's nominal bias level before playing. If you haven't noticed if you turn on a tube amp and expect music to be instantly coming out, there isn't any music coming out till a few 10-15 seconds later, usually channel by channel slowly. It's like starting up your car in a cold morning and driving off instantly, instead of a good few minutes of combustion burn-in. The same goes if you wake up early for work and you don't drink coffee, you need that catalyst to get you started for the day.

 

15 minutes is a little too long, a minute or two for start up phase before playing music is about the right time.


Edited by DefQon - 2/10/13 at 4:19pm
post #1813 of 2605
Whats better as far as quality, and mod capabilities, Bravo Ocean, or Bravo V2?
post #1814 of 2605
Quote:
Originally Posted by Bassmntmuzik View Post

Whats better as far as quality, and mod capabilities, Bravo Ocean, or Bravo V2?

Both should be about equal to amount of mods available but to be honest it's hard to say, dropping in a better tube is a bigger enhancement than anything else. Quality wise the Ocean is by far better, sound/performance ratio wise after mods the Bravo v2, but it's a hard one to decide.

post #1815 of 2605
Quote:
Originally Posted by DefQon View Post

No IRL510? ph34r.gif

Didn't find IRL510 anywhere just got the IRL510PBF from Mouser.

I am wondering if it is even compatible. Anyone?

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