more questions

but will the s-cap work with 82/180 for now till i get 252/250.

yes.

and an 82/s'cap/180 should sound a lot better than an 82/180

Cheers

Don

hi don,
in what way will it sound better?
will it be more detail or faster?
and adding an xps2 to a cdx . what exactly will this do?
thanks , scotty

will it be more detail or faster?

More detailed; faster slew rate (ie notes will sound more acurate because tha amp can stop and start much faster when required); Wider bandwidth (ie the useful power will drive the top frequencies higher and more smoothly and also drive the bottom frequencies deeper and more powerfully)

Adding an xps or xps2 to a cdx will do the same, but getting a cds2/xps or cds2/xps2 will do even more of the same.

Cheers

Don

hi don,
yes i understand where your coming from
ive heard people say that certain music can sound harsher with the cds2/xps. but surely this could be down to what your ears have become accustomed to! no?
scotty

You are thinking along the right lines. Boh the XPS2 and the Supercap will provide excellent improvements to your system (you need two snaics to connect the Supercap to the 82)

Hi Don Atkinson,
From reading this forum (and others) I understood that one of the reasons Naim gear sounds so fast and "punchy" is that they don't have to amplify frequendy extemes - and hence the reason the Naim don't like you to use other pre-amps with Naim power amps. Because Naim power amps are designed to operate withing a very narrow bandwith and most other pre-amps put out to much bandwith for Nai to cope with. (Hence Naim cannot play the frequencies required by DVD-A and SACD) If this is true, I don't think adding a Supercap will make any difference.


I may well be wrong

John

I think there is some confusion here.

Yes Naim preamps do limit banwidth to an extent 40Khz -70Khz depending on amp, campaired to some other amps that have no limit at all.

However even in the most limiting case frequencies at least an octave above the highest audable are still produced. Additionally in the case of CD no output above 21Khz is produced anyway so what's the issue.

When Don says the supercap will give better bandwidth he doesn't literally mean you will now get 80Khz where before you ONLY got 40Khz, he means the quality of the freqency extreams is improved and maybe a few Hz lower or 1000 Hz higher might be better produced.

Just to add a comment for JohnMak.

Greeny omitted DVD-A and SACD from his response, maybe on the grounds that in his opinion it's not HiFi. However even with DVD-A and SACD, though the theoretical bandwidth streches up to 100KHz or thereabouts, a lot of it is noise AND even with a pair of supertweeters in operation there is typically nothing above 50KHz playing. As Greeny says most Naim amps, in particular the newer reference series, will play up to 50KHz.
I know the human ear is not hearing these frequencies but you do pick up the lower harmonics so there is some point to playing well recorded stereo from DVD-A and SACD, especially using supertweeters.

regards
GEOFF

quote:

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Greeny omitted DVD-A and SACD from his response, maybe on the grounds that in his opinion it's not HiFi

---

no this was on the grounds that Scotty's target system was CDX2/XPS2

quote:

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I know the human ear is not hearing these frequencies but you do pick up the lower harmonics so there is some point to playing well recorded stereo from DVD-A and SACD, especially using supertweeters.

---

The lower harmonics?? You mean those elements below 20Khz

Greeny

Yes.

It has been published several places that the extra non-audible frequency output above 20KHz delivered by DVD-A and SACD generates extra harmonics which are in the audible spectrum.

This is also what goes on with Vinyl replay where most quality cartridges have output as high as 50KHz. This is why DVD-A and SACD are touted as sounding more like vinyl.

At least in the "stereo" versions which are typically present on DVD-A and SACD disks I find there is a sense of "air" about the sound produced which makes it sound at least "different" from CD.

regards
GEOFF

JohnMak said

quote:

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I may well be wrong

---

You are correct in that you are indeed, wrong. The supercap does sound much, much better. Simple really.

They said the bumble bee shouldn't be able to fly, according to scientific theory. meanwhile, the humble bumble bee just gets on with flight, happily zipping from flower to flower. It isn't interested in theory, scientific or not - it's just prepared to 'be'.

Given your particular argument lacks science or understanding, and is cobbled together from the posts of a bunch of others with a collective lack of understanding, one could question the value of your contribution to this thread.

repectfully yours...

Rico - SM/Mullet Audio

I think Rico should be re-named Ree-KO. A deadly upper cut to the temple, that last post!

Steve

JohnMac,

...the proof of the pudding......

Adding a supercap does produce the effect I described.

My explanation was an attempt to describe the sort of effect a Supercap/xps provides. It is a subjective description. I haven't measured the bandwidth. It sounds as if the frequency range has been extended and the forcefulness of the frequency extremes has been increased and rendered more natural.

I can only describe (poorly) what I hear.

If we can't justify it mathematically, then I'm afraid that its our maths which is at fault.

Anyway, I hope this helps Scotty (and others) to decide which options to audition.

Cheers

Don