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Old 12th September 2004, 05:45 PM   #11
brianuk is offline brianuk  United Kingdom
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ORRRRRR I'll swap u mine for a nice GC ?
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Old 12th September 2004, 05:57 PM   #12
Nuuk is offline Nuuk  United Kingdom
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Quote:
NOTE:Sound isnt great for music and probly wont be for any freeview box
I can confirm that sound out of a Freeview box isn't great but I have been told by somebody that I trust that when the signal is taken from an SPDIF and played through a decent DAC/hi-fi, it is actually better than DAB.

Does that Netgem have an electrical connection to a DAC or an optical? Specification is very sparse on those links.

Swap one for a GC? I wish that I could turn them out for that sort of money!
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Old 12th September 2004, 06:06 PM   #13
brianuk is offline brianuk  United Kingdom
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Yes u r spot on, theres a good uk site that compares bit rate of DAB and freeview. DAB is awful (rip off) Britain has the worst bitrate in the world for DAB, I wouldnt have one if u paid me. Sky and Freeview are siginificantly higher.

DAB's are so expensive too and then u get poor quality, cant believe its happening!

Nuuk -
I hope its optical cos thats where its plugged into my Sony!

If you want good radio buy a good FM, nothing beats it in the UK - yet.

But the netgem is ok, i listened to the proms last night (just to test it u understand!) and it was fantastic with the surround on, not sure my scottish neighbours here in aberdeen appreciated a bit of "da da da da da da daaaa daaaaa (altogether now) Land of Hope and Glory...". They arent Brits theyre Scots.

Oh and then the conductor did it all again, so i had to turn it up some more
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Old 12th September 2004, 06:13 PM   #14
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Sound (or rather the sound signal) from Freeview is indeed better than DAB. That is because BBC sqeezed too many channels into DAB and lowered the bit rate. See bit rate table at
http://www.digitalradiotech.co.uk/in...bit_rate_table

S/PDIF digital output is marginally better than optical. But you will notice it only in genuine hi-fi applications such as between a CDP and a DAC. Not with Freeview.

If you buy a DAC with S/PDIF digital output and optical, you would want to use S/PDIF for CDP or DVD and optical for Freeview. Very few DACs two S/PDIF digital outputs.

If you want to know more about the DAC world come over to HiFi Choice Forum at http://forum.hifichoice.co.uk/
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Old 12th September 2004, 06:15 PM   #15
Nuuk is offline Nuuk  United Kingdom
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Quote:
If you want good radio buy a good FM, nothing beats it in the UK - yet.
Don't worry Brian - I have my trusty (modified) Nad 412 here and it is very good (hence I was totally unimpressed by the Freeview sound).


Quote:
But the netgem is ok, i listened to the proms last night (just to test it u understand!)
No need to apologise. The Proms are an excellent source of music and a good excuse to feel good about being British!

I will keep my search down to a Freeview box with an electrical output to my DAC.
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Old 12th September 2004, 06:17 PM   #16
Nuuk is offline Nuuk  United Kingdom
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Quote:
If you want to know more about the DAC world come over to HiFi Choice Forum at http://forum.hifichoice.co.uk/
Thanks again. I'll be over after I have been out for my evening walk to dislodge some of my Sunday roast!
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Old 12th September 2004, 06:22 PM   #17
brianuk is offline brianuk  United Kingdom
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You can get optic to elecy convertors quite cheap and useful to have about for testing. Goodluck. Sunday roast
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Old 23rd March 2005, 06:21 PM   #18
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Default TDA1305 I/V, biasing its internal op-amp into class A

I have a Dacmagic 2 to which I have made many modifications and with which I am very happy. However there is one modification which I am keen to try but about which I have reservations. It is biasing the internal TDA1305 I/V op-amp into class via a constant current source on its output. My reservations are to do with how much this might raise the temperature within the TDA1305.

Has anyone tried this with the TDA1305?
How much current draw was introduced?
What were the results with regard to temperature?

Thanks for any help,
Tim.
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Old 23rd March 2005, 08:53 PM   #19
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Significant gains in the performance can be made by using a device such as Monarchy Audio DIP 48/96 Upsampler between the DAC and the source.

DIP 48/96 Upsampler isolate the DAC from the transport (blocking hum and RFI), boosts incoming signal, de-jitters (timing errors) and then re-clocks using its high precision clock. It also dithers, increasing the bit rate from 16 to 24 bits and then upsamples the frequency from 44.1kHz to (user selectable) 48kHz or 96kHz.

http://www.monarchyaudio.com/upsampler.htm

Click the image to open in full size.

Price from Wollaton Audio, the UK Distributor, is 399 plus delivery charges.

It is now on special offer for USD299 including shipping. Even abroad to UK! They will wire it FOC for UK voltage, if you ask.

VISA exchange rate was 2.7% below market rate and I paid 160.64p in all
Free delivery, no import duty, VAT or admin charges.
If anyone want to know how to go about buying one, PM me.
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Old 23rd March 2005, 09:25 PM   #20
tubenut is offline tubenut  South Africa
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Default Soft recovery diodes made a big improvement on my friends DACmagic

Possibly one of the biggest improvements we got out of all kinds of tricks were replacing all the diodes to I think BYT53.
Be careful with plugging the digital input in and out. Always switch off if ever comparing cables. The dacmagic easily popped the SPDIF CD input buffer....
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