[apollophono]

I guessing this is the best place to throw this topic out.  I own two amps that
I enjoy.  My Dayton Audio DTA-1 T-Amp and my TBI Millennia with improved
power supply.  The Dayton T-Amp is the one I'm most interested in upgrading.
It too like the Millennia can run on batteries (improved sound) but I want to be
able to run it off the wall outlet.  That would be cheaper and better for the
environment. 

I'm an idiot when it comes to understanding electronics so hear are the
questions I have.

How do I know whether an amp can run on 12v or 24v or any other voltage?
Does increasing the voltage improve the sound?
How many amps can I go up to with a particular piece of equipment?
Does increasing the amperage improve the sound?

Any other suggestions about using a linear(?) power supply or other
types that will help improve the sound?

I'm a cheap and cheerful (poor man) (working stiff) dude, but I do enjoy
listening to music immensely.  I have over 1000 albums (mostly left from
my dad) and have given away almost 800 cassettes (dead medium) away.

[Freo-1]

Well, I would have thought someone would have provided some feedback, so I'll put in my 2 cents.   
In general, linear power supplies are better suited for high quality audio reproduction.  Unless your speakers are over 100 db/w, if it were me, I would get a 24 V linear power supply.  The higher the rail voltage, the more power the amp will put out.  More power reserve from the supply is always better than less.
 
Not sure what you are asking here:  " How many amps can I go up to with a particular piece of equipment?"
 
Far and away, speakers is THE single most important aspect of sound reproduction.  The amps and source equipment, while important, are often over-hyped.   Improving the sound often involves improving the speakers first.  The amp just needs to be good match for the speakers you choose.

[wilbert-vanbakel]

How do I know whether an amp can run on 12v or 24v or any other voltage?
Does increasing the voltage improve the sound?
How many amps can I go up to with a particular piece of equipment?
Does increasing the amperage improve the sound?

I have read the same stories that an upgrade of the power supply might improve the sound quality.

I own the same Dayton DTA-1 and the power supply states: Ktec, 12V 2.0A.
Now, it's a bad idea to change the voltage (you would not plug a 110 Volt razor in a 220 Volt wall outlet, right?)

But it's okay to increase the Amp. (Like it's okay to use a 25 Watt bulb in a 16 Amp circuit or in a 25 Amp circuit)

Today I received a Topping TP10-MK4 (Which is very similar to the Dayton DTA-1).
It comes with a DC 12V and 3A power supply and I upgraded the supply to 12V and 5A.

Hope it helps.

[Freo-1]

I have read the same stories that an upgrade of the power supply might improve the sound quality.

I own the same Dayton DTA-1 and the power supply states: Ktec, 12V 2.0A.
Now, it's a bad idea to change the voltage (you would not plug a 110 Volt razor in a 220 Volt wall outlet, right?)

But it's okay to increase the Amp. (Like it's okay to use a 25 Watt bulb in a 16 Amp circuit or in a 25 Amp circuit)

Today I received a Topping TP10-MK4 (Which is very similar to the Dayton DTA-1).
It comes with a DC 12V and 3A power supply and I upgraded the supply to 12V and 5A.

Hope it helps.

Good points.  My recommendation for a 24 V linear power supply was in reference to the TBI amp, not the Dayton.   Also, good point on the increased current output for a give voltage rail.

[apollophono]

Thanks guys!  I appreciate the input.  The amperage increase is what I see
most when talking about the cheap t-amps like the Dayton, but what
about the increase in voltage when you see examples of people using
a 12v battery or a 24 volt battery supply being used for the TBI?  That is
confusing to me.  Is it possible to increase the voltage up to a certain
point like 110 because the equipment was manufactured/designed to
run at the level? 

[MaxCast]

I believe it has something to do with AC vs. DC.

[Freo-1]

Check out this link:
 
http://www.ohmslawcalculator.com/ohms_law_calculator.php
 
At the most basic level the voltage and resistance across the speaker determines the amperage.  For example, the TBI amp will output 32 watts with a 24 volt power supply, but only 18 watts with a 12 volt power supply.  The output devices have both current and voltage limitations which cannot be exceeded without damage.