Now I know how you placed those big shunts in the dac.
I tend to run the shunts between 250 and 300mA... they sound much better this way.
As heat and size are an issue I did not experiment the shunts in my CDP. You can not place them on top of a dac or decoder or clock as I did with the Spowers.
The big advantage with the shunts is that you can actually "tune" them by choosing the best combination of Vin, Vref and output caps. You can even go further if you choose a special resistor for Vref.
Shunts might be good for tunning the DOS
I tend to run the shunts between 250 and 300mA... they sound much better this way.
As heat and size are an issue I did not experiment the shunts in my CDP. You can not place them on top of a dac or decoder or clock as I did with the Spowers.
The big advantage with the shunts is that you can actually "tune" them by choosing the best combination of Vin, Vref and output caps. You can even go further if you choose a special resistor for Vref.
Shunts might be good for tunning the DOS
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My player sounds good now, Do i leave it alone too settle or play some more?
alan
LOL. Wrong place to ask that question I think.
Yeh, I'd normally agree with all of that, but I recently modded a Pink Triangle Ordinal Cd player (2 x tda1547) for someone and that has the same sound character as my TDA1541 player/dac but with much better treble information. It still uses opamps for I/V and output too!
The Pink Triangle does not sound brighter or more clinical, just better.
People would be very suprised by how smooth and analogue my player is, it's pretty close to the TDA1541 in the way it delivers sound but without the draw backs. I'm still waiting to hear a cdp or cdp & dac setup that offers more detail and overall sound quality.
Lee coming over to our house next Wednesday for a refresher session ;-)
Also Lee as you are starting from scratch with this one sack off the std tx and get the larger VA ones in from the start.
Brent
Lee coming over to our house next Wednesday for a refresher session ;-)
Also Lee as you are starting from scratch with this one sack off the std tx and get the larger VA ones in from the start.
Brent
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Yep I can agree about those dac7's. I was floored by the sound of a vrds10 I modded. It also had twin dac7's. You can also bypass the inboard dac IV opamps and make an external one which is what i would do!
Yep, I'm alive just been busy again and to be honest, I'm not enjoying having to actually do some work for a living lol!!!
Great stuff, looking forward to it again.
Will bring the
I believe that most dac chips sound incredibly similar in character once all the surrounding circuitry is sorted. My tda setup sounds so alike to the other top players i've heard, but is just lacking that last bit of detail and openness.
Lee.
Great stuff, looking forward to it again.
Will bring the
Lee.
2 tins of bitter shandy won't get you through the front gate mate!!!!!!
Err
Basically any resistor that feeds a 5V to a chip needs removing. At the chip side hole of where the resistor was solder in the out pin of the reg. Tag the gnd down to the ground plane of the pcb (better still run seperate gnd wires back to a star gnd). Run a wire from the main smoothing cap (before the std reg) to the input of the new reg and repeat for all of them. Of course seperate tx and psus is even better for all these regs but that's an whole new world of pain.
Brent
Basically any resistor that feeds a 5V to a chip needs removing. At the chip side hole of where the resistor was solder in the out pin of the reg. Tag the gnd down to the ground plane of the pcb (better still run seperate gnd wires back to a star gnd). Run a wire from the main smoothing cap (before the std reg) to the input of the new reg and repeat for all of them. Of course seperate tx and psus is even better for all these regs but that's an whole new world of pain.
Brent
Thanks, that's great, I'm planning to move some regs and they'll only have one pin soldered in to the pcb. Hotmelt seemed the best option to keep them solid but I wanted to be sure that there was no danger of shorting them through the glue.
Pete