"lordy" wrote in message
...
On 2006-08-29, Trevor Wilson wrote:

"lordy" wrote in message
...
On 2006-08-29, Trevor Wilson wrote:

"Trevor Wilson" wrote in message
...

**OK, first mistake: The Debut is already fitted with a phono preamp.
It
can only be used with a line level input.

**Oh yeah. Make certain the MC/MM switch is correctly set.

Hi Trevor, after a bit of Googling, it looks like you have the "Phono
Speedbox"
edition ??

**I don't own one, I just fix 'em. All of the Debuts I see are fitted
with
an internal phono preamp.

Do they have speed controls too?

**No idea. I only test TTs at 33.33RPM, unless specifically directed to do
otherwise. I DID, however, fall into the trap of testing the Debut into a
phono preamp. Once. Are you absolutely certain yours does not have a
built-in phono preamp?


Anyhow it looks like there are different flavours from that web page.

I did a bit of experimenting, I removed the belt,
the noise only occurs when the motor is on and the needle is either
in the groove, or outside the groove and not moving tangentially/skating.

I then took a record I didnt care much for, put the stylus on it, and
lifted the record clear of the turntable. I still had the noise,
so I guess as you say its electrical problem and not mechanical.

Over in avforums some other people have mentioned this hum, but no
indepth feedback yet!

**Are you using the correct power supply?


--
Trevor Wilson
www.rageaudio.com.au



--
Posted via a free Usenet account from http://www.teranews.com

On 2006-08-29, Trevor Wilson wrote:

Are you absolutely certain yours does not have a
built-in phono preamp?

Pretty much. IIRC a phone preamy boosts the signal quite a few times and
does some bass-eq. Would this be clearly audible from my mp3 snippets?
The manual is in the loft but it sounds just fine when plugged into my
amps phono sockets. (Apart from the hum which I'll be double checking
downstairs before deciding if this deck goes back to Richer Sounds,)


**Are you using the correct power supply?

Yup. The one that came with it. 16v-500ma


--
Trevor Wilson
www.rageaudio.com.au

On 2006-08-29, lordy wrote:
On 2006-08-29, Trevor Wilson wrote:

Are you absolutely certain yours does not have a
built-in phono preamp?

Pretty much. IIRC a phone preamy boosts the signal quite a few times and
does some bass-eq. Would this be clearly audible from my mp3 snippets?

Just checked without preamp. Very quite despite maximum gain on the sound card,
and little bass.

Lordy

On Tue, 29 Aug 2006 11:34:35 +1000, "Trevor Wilson"
wrote:


**No idea. I only test TTs at 33.33RPM, unless specifically directed to do
otherwise. I DID, however, fall into the trap of testing the Debut into a
phono preamp. Once. Are you absolutely certain yours does not have a
built-in phono preamp?

Trevor, listening to his clips it is very clear that they haven't been
de-emphasised twice, so there is only one phono pre-amp in the chain.

d

--
Pearce Consulting
http://www.pearce.uk.com

In article ,
Trevor Wilson wrote:
**No idea. I only test TTs at 33.33RPM, unless specifically directed to
do otherwise. I DID, however, fall into the trap of testing the Debut
into a phono preamp. Once. Are you absolutely certain yours does not
have a built-in phono preamp?

Have you listened to the clip? That's only gone through one stage of RIAA
equalisation. Also, feeding a line level into a second pre-amp would
result in *vast* distortion.

--
*The closest I ever got to a 4.0 in school was my blood alcohol content*

Dave Plowman London SW
To e-mail, change noise into sound.