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Questions about building my own amp?

post #1 of 4
Thread Starter 
So my current DTA-100a is alright, after an RMA I'm having slight issues with it. Still has channel imbalance, sometimes channels are flipped, just overall build quality is kinda sketchy.

So I'm thinking about building my own amp sometime soon. I want it to act like a speaker amp and a headphone amp, like my DTA-100a. So a 2.0/2.1 speaker set up and a headphone amp. Thing is I don't know anything about what's available on the DIY amp market.

I did some research and it seems like the B22 (beta22) is the one that most people talk about. How much would it cost? What other things do I need to get? Are there any other options?
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Jo0
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post #2 of 4
A quality B22 build will run $1k or more in parts. It's not the cheapest amp out there, but is a good amp IMO.

How much power do you need as a speaker amp? You would likely be better off building two different amps. A chip amp for speakers and a small tube amp for your headphones. If you must have 1 amp and you can get by with only a couple watts then a MOSFET Millet Hybrid Max can do the trick. You would have to make a couple tweaks and make sure you have a good PS section. Mine could drive speakers if I made one or two simple changes. The rest of the amp can already handle the extra current.
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post #3 of 4
Thread Starter 
I would like the amp to have plenty of headroom for possible future bookshelf speaker upgrades.

I don't mind building two separate amps and then house them in one case. Would it be possible to have an auto output switch, say it cuts off output to my speakers and routes to my headphones when I plug them in?

I just threw the B22 out there since that's what some light google searches gave me. I would definitely like the most cost effective and good/best quality route.

I'm new in the audio/hi-fi scene so all of this is going to be a learning experience. I don't have a problem with building circuit boards since I have some light experience with that.
Jo0
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Jo0
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Optical DriveOSMonitorMonitor
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MonitorKeyboardPowerCase
ASUS VN247-C Corsair K70 Red LUX Corsair AX850 Lian Li PC-A05NB 
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post #4 of 4
The problem you're going to run into is that if you want headroom to drive speakers you need more than a 1-3wpc amp. You'll be looking in the 10-50wpc chip amps. These are not really set up to drive headphones and if you add a headphone stage you will either be making a simple stage or going all out which will be a new amp, just share the preamp and power supply.
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Darkness
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