Denon 103 Pro and his step up

[Historicus]

I don't have any resistance mounted on my A23

[anubisgrau]

and it goes to any plain 47k MM phono?

OK, no resistors needed. that's a good news.

[Barry]

I believe that the A23 uses Haufe T-7883 transformers. Nobody seems to know and neither Keith Aschenbrenner nor Haufe will say.

If they are the T-7833, then running them into a 47KOhm load will present the cartridge with a load of 494.5 Ohm.

Incidently, the T-7883 is designed for a primary load of 40 Ohm and a secondary load of 47KOhm - the coil resistance of the Denon DL103 is 40 Ohm.

The 7883 would thus seem to be the ideal transformer to use with the Denon 103, and if the same transformer is used in the Auditorium A23, then that would explain why it too is a good SUT to use and thus Marco's and other's good opinion of this device.

Regards

[anubisgrau]

OK than it's clear. I don't know how I come to this 100ohm load, probably I picked it somewhere on the net.

Considering 103R has a different impedance (14ohm if I'm not wrong) - so T-7883 won't be ideal. Has anyone tried A23 with 103R and what are the thoughts? And what is generally considered to be a good choice for 103R?

[anubisgrau]

I've disconnected a resistor loading however it doesn't perform that well with a bare 7883 trannie. To my ears it's still better when a 103 is loaded with 100ohm than what it is loaded with a plain 7883..... Rounded, fuller, more natural, more subtle..... This is it (and goes what Denon says in the manuals...)

[Rare Bird]

Sorry for changing subject but while were on 103R..Bling kings might be intrested in one of these

http://cgi.ebay.co.uk/ISOkinetik-Den...item27accf47b1

[Marco]

Has anyone tried A23 with 103R and what are the thoughts? And what is generally considered to be a good choice for 103R?

Hi anubisgrau (what's your proper first name? )

I use a Denon 103SA (basically a 103R with a 'fancy' body) with my A23, and the combination is superb. Therefore, I wouldn't worry about any incompatibility issues.

The A23 loads partnering cartridges at just over 100ohms, and this is definitely the optimal setting for any DL-103. Anything much over that tends to make the sound rather 'edgy' and brittle.

Marco.

[anubisgrau]

OK - this is a bit more clear now, because your 103SA has 14ohm impedance while mine 103 has 40 ohm impedance.

therefore 103R and 103 have different recommended loadings. AFAIK 103R wants 40 ohm with a trannie and 103 wants 100ohm min.

when you were ordering your A23, did you have to emphasize what version of denon you have?

i mean, i can't talk about things I haven't tried and maybe it just works superb with both, however there should be a difference because loading is a quite tricky thing. unless there are two different A23s (or different Haufe trannies).

[Marco]

LOL - before we go any further, do you have a 'normal' first name? I'm old fashioned in that I like to talk to people with 'real' names

Marco.

[anubisgrau]

LOL - before we go any further, do you have a 'normal' first name? I'm old fashioned in that I like to talk to people with 'real' names

Marco.

Gordan