Only if it has a fan. You are about to burn 2.5A at 12V, I.e. 30W. For the T Amp there is no high constant bias that it burns it so to take the burden off the shunt, like a class A amp with big idle bias and chunky shinks does. It only burns dynamically from it when it plays. The shunt will be getting less heat the stronger the amp plays. When the T Amp idles, the shunt gets it all. You will need a 0.5C per W heatsink.
Hi all and I wish not to get any answer because you are all at vacations 
For some months now, a pair of salas shunts have replaced batteries in my line amp with spectacular results. In order to clean up the mesh and close the chassis I would like your opinion on this.
The line stage consists of a opa627 buffer, a volume control and an opa627 output stage.
Now the shunts go where the batteries before them. That means per chanell per rail
- a small inductor
- 1000 uF
- and then to each chip with 1R/47uF on chip's rail pin
Should I leave it like this or remove inductor + 1000uF ?
For some months now, a pair of salas shunts have replaced batteries in my line amp with spectacular results. In order to clean up the mesh and close the chassis I would like your opinion on this.
The line stage consists of a opa627 buffer, a volume control and an opa627 output stage.
Now the shunts go where the batteries before them. That means per chanell per rail
- a small inductor
- 1000 uF
- and then to each chip with 1R/47uF on chip's rail pin
Should I leave it like this or remove inductor + 1000uF ?
Marinos said:
Its OK as it is, although a coil smooths it up high just a bit, does not alter it, we had experiments, it is still perceptibly positive, if before the shunt. After the shunt it messes with its low output impedance. I don't know if it helps the chips more than what an impedance alteration can do as harm. Bypass and listen, compare.
Not under the zener because of higher pinch off than 170BL. They will suffocate under Vbe. All other places yes. No changes. But you can add a 220R from BC550's emitter to ground. That will give space for -2.5V pinch off devices if BC550's collector load is a 8.5mA Idss Jfet. Your Vout becomes Vz+2.5V then. If your 6-9mA Idss 246s that are better to be applied here, have higher than -2V pinch off you scale the resistor higher and your Vout goes up accordingly. You rethink of Vz. And you must not squeeze the voltage across the BC550 too much. Say no less than 8V across or not less than double shunt Vgs in other words.
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