Power supply requirement for Touch?

[baardbaard]

The SB3 is packaged with a very wimpy and noisy switching power supply that inhibits its true potential.

- I have an aftermarket PS for my SB3 - can I use it on Touch?
- What is the DC requirement for the Touch?


Baard

[JJZolx]

The SB3 is packaged with a very wimpy and noisy switching power supply that inhibits its true potential.

- I have an aftermarket PS for my SB3 - can I use it on Touch?
- What is the DC requirement for the Touch?

The only difference is that the power supply that comes with the Touch is rated 3 Amp. It needs the extra to power the USB port. Same voltage and connector.

[baardbaard]

Nice, I can re-use this PS from:
http://www.welbornelabs.com/squeeze.htm

ratet 5V and 4A

Baard

[Phil Leigh]

The SB3 is packaged with a very wimpy and noisy switching power supply that inhibits its true potential.

- I have an aftermarket PS for my SB3 - can I use it on Touch?
- What is the DC requirement for the Touch?


Baard

In your opinion. This is not backed up by fact.
It is absolutely not "wimpy" - it delivers the current required. As for "noisy"... well, most of the "noise" comes from the internal DC switcher and the VFD.

[baardbaard]

Wimpey, flimsy, under powered etc…..are you sure you want a debate on this topic meaning there is no point in upgrading the SB3 power supply from an audiophile point of view?

Or was it just my way of describing the standard PS unit that was difficult for you to overcome?

[Phil Leigh]

Wimpey, flimsy, under powered etc…..are you sure you want a debate on this topic meaning there is no point in upgrading the SB3 power supply from an audiophile point of view?

Or was it just my way of describing the standard PS unit that was difficult for you to overcome?

It is not underpowered/wimpy as it delivers 5V @ 2.5 amps which is exactly what is required. Replacing with a "bigger" (higher current capability) power supply won't make any difference on its own. Also there are different versions of the stock PSU and later ones are far less noisy in terms of radiated RFI. Ultimately the performance is limited by the internal voltage switching of the SB itself and that VFD which is a noisy component.

By the way, I'm happy to debate this point. I've measured the audio performance of the SB3 with different supplies. Have you?

This discussion is best conducted in the Audiophile Forum, where you will find lots of discussion on the pros and cons of expensive power supplies and other mods.

[baardbaard]

For heavens sake – can’t you read between the lines? There is more to powers supply design then current capability. That’s why some off us have abandon el-cheapo SMPS

By the way, I'm happy to debate this point. I've measured the audio performance of the SB3 with different supplies. Have you?

You really put a smile on my face with that on – I don’t have too. I have golden ears.

I started this thread with a simple question – could you please stay on topic?

[DaveWr]

I have golden ears.

I started this thread with a simple question – could you please stay on topic?

No you didn't, you started with a highly opinionated statement expressed as a fact, then you asked a question which has had an answer.

Phil has at least shown his results of comparison.

Dave

[Phil Leigh]

For heavens sake – can’t you read between the lines? There is more to powers supply design then current capability. That’s why some off us have abandon el-cheapo SMPS



You really put a smile on my face with that on – I don’t have too. I have golden ears.

I started this thread with a simple question – could you please stay on topic?

Golden something...

[baardbaard]

Oh boy - here we go again.