[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

highdudgeon;148650 Wrote: 
> For a meter or half meter run of cable...it's silly to think XLR has any
> particular advantage.  Mind you, I use a lot of XLR gear...but that's
> just because it happens to be balanced.  (Like my Lavry, for instance).

I need to use an adaptor plug (xlr to rca ) because my rowland has only
xlr input/outputs.
So I can't try it now.

The trials of audiophilia...


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread highdudgeon

For a meter or half meter run of cable...it's silly to think XLR has any
particular advantage.  Mind you, I use a lot of XLR gear...but that's
just because it happens to be balanced.  (Like my Lavry, for instance).


tomjtx;148648 Wrote: 
> That is what I thought you meant. The problem is if you use balanced
> outs you can't adjust the attenuation.
> There are some that think balanced is desirable over unbalanced(most of
> my former girlfriends say I am the latter).
> 
> I have no opinion. At some point I will play around with different
> combos but, now, I'm enjoying listening too much to mess with it. :-)


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

highdudgeon;148636 Wrote: 
> Actually, I wasn't clear.  The deal is that, without analog attenuation,
> the thing is really, really, reall loud.  So, you turn it way down, and
> that gets you, possibly, into a area of degradation.  
> 
> Now, if you set analog attenuation, you can keep the digital volume up
> without blowing your ears or speakers, and that also keeps you in the
> safe zone.
> 
> I'm finding that -10db is right for my amps/speakers.

That is what I thought you meant. The problem is if you use balanced
outs you can't adjust the attenuation.
There are some that think balanced is desirable over unbalanced(most of
my former girlfriends say I am the latter).

I have no opinion. At some point I will play around with different
combos but, now, I'm enjoying listening too much to mess with it. :-)


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread highdudgeon

Actually, I wasn't clear.  The deal is that, without analog attenuation,
the thing is really, really, reall loud.  So, you turn it way down, and
that gets you, possibly, into a area of degradation.  

Now, if you set analog attenuation, you can keep the digital volume up
without blowing your ears or speakers, and that also keeps you in the
safe zone.

I'm finding that -10db is right for my amps/speakers.

tomjtx;148630 Wrote: 
> Thanks HD. THAT answers my question precisely. I knew this was the case
> for the SB but I wasn't sure about the TP 
> 
> I guess since Patrick is a Brit he doesn't speak american and , I
> hasten to add, I don't speak British (most of my brit friends would say
> we don't speak english either, we mangle it)   :-)
> My Spanish is better than my British.
> 
> Thank you both for taking the time.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

highdudgeon;148623 Wrote: 
> Volume attenuation in the Transporter is digital, happening before the
> DAC.  If you're running direct to a power amp, then you need some form
> of analog attentuation for two reasons: 1) to protect your speakers in
> case of some sort of failure (read Sean's posts on this) and 2) to
> maintain your volume setting above the point where digital artefacting
> would kick in because you're digging into the 16 bit word.

Thanks HD. THAT answers my question precisely. I knew this was the case
for the SB but I wasn't sure about the TP 

I guess since Patrick is a Brit he doesn't speak american and , I
hasten to add, I don't speak British (most of my brit friends would say
we don't speak english either, we mangle it)   :-)
My Spanish is better than my British.

Thank you both for taking the time.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread highdudgeon

Volume attenuation in the Transporter is digital, happening before the
DAC.  If you're running direct to a power amp, then you need some form
of analog attentuation for two reasons: 1) to protect your speakers in
case of some sort of failure (read Sean's posts on this) and 2) to
maintain your volume setting above the point where digital artefacting
would kick in because you're digging into the 16 bit word.

tomjtx;148609 Wrote: 
> I think I should rephrase my question.
> 
> I have disabled the digital attenuation.
> 
> According to SD this doesn't affect the volume control when listening
> through the analouge outs. However is the volume control digital or
> analouge at this point?


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread Patrick Dixon

tomjtx;148609 Wrote: 
> I think I should rephrase my question.
> 
> I have disabled the digital attenuation.
> 
> According to SD this doesn't affect the volume control when listening
> through the analouge outs. However is the volume control digital or
> analouge at this point?

I have no idea what you mean and I've already given all the answers you
need!  So just enjoy!


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

I think I should rephrase my question.

I have disabled the digital attenuation.

According to SD this doesn't affect the volume control when listening
through the analouge outs. However is the volume control digital or
analouge at this point?


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

Thanks Patrick,

I have disabled the digital vol. control, so it is at 100
I am using balanced outputs in the analouge so there is no att.
adjustment
possible, it is fixed at 0db.

I was wondering about the TP analouge volume setting if I use a
pre-amp.
Should I set it at max  and use the pre-amp to get the best sound with
a pre-amp?

Currently I can use either the pre amp remote or the TP remote to
adjust volume.

Soon I will try the TP straight into the amp, I just want to get used
to the sound through the pre amp 1st.





Patrick Dixon;148554 Wrote: 
> The attenuation is via resistors on the analogue outputs - so it's
> analogue.  You also have the digital volume control (exactly as per the
> SB3) which you set using the remote control or web UI.
> 
> Unity gain is a little meaningless unless you say what it's referenced
> to.  By definition, the 0db attenuator setting is unity wrt to the
> unattenuated analogue output.
> 
> If you are using a preamp, you should leave the attenuators at 0db and
> fix the digital volume control at 100.  Then use the preamp volume
> control.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread Patrick Dixon

tomjtx;148528 Wrote: 
> It's not clear in the manual if TP analog att. is digital or not as it
> is in the SB.
> Could Sean enlighten us.
> Also , if it is not digital is full volume setting unity gain?
The attenuation is via resistors on the analogue outputs - so it's
analogue.  You also have the digital volume control (exactly as per the
SB3) which you set using the remote control or web UI.

Unity gain is a little meaningless unless you say what it's referenced
to.  By definition, the 0db attenuator setting is unity wrt to the
unattenuated analogue output.

If you are using a preamp, you should leave the attenuators at 0db and
fix the digital volume control at 100.  Then use the preamp volume
control.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread Patrick Dixon

Mark Lanctot;148525 Wrote: 
> I'm not sure if the attenuation circuit affects the digital volume?
It doesn't - you set the attenuation to get the digital volume control
working in the range from 0db to -30db (as high as possible) at your
normal listening levels.

Where you set it will depend on three things:-

(1) The gain of your power amp,
(2) The efficiency of your speakers,
(3) The volume (SPL) you like to listen at.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

It's not clear in the manual if TP analog att. is digital or not as it
is in the SB.
Could Sean enlighten us.
Also , if it is not digital is full volume setting unity gain?


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread Mark Lanctot

highdudgeon;148518 Wrote: 
> 2. How much digital attenuation am I using...enough to get into
> artefacting at low volumes?

I'm not sure if the attenuation circuit affects the digital volume?


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread tomjtx

you can disable all digital attenuation using the interface in player
settings.

I am using a pre amp and I wonder where to set the analog volume on the
transporter for best sound?
Will try direct into the amp to compare.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-21 Thread highdudgeon

Correction: make that -10db.

So, using -10db of internal analog attenuation, I wonder:

1. How much protection am I getting for my speakers?  Enough not to
blow the system?

2. How much digital attenuation am I using...enough to get into
artefacting at low volumes?

I haven't played around that much.  It sounds very good.

highdudgeon;148412 Wrote: 
> Answered my own question -- DUH.  XLR is XLR and under a different
> specification.  The attenuaition thing is for RCA only.  Good thing my
> amp takes balanced or RCA.
> 
> Anyway, if anyone is curious, I set the attenuation to -30db.  That's
> too much.  With the volume maxed out it's not exactly loud.  Halfway
> down and it is silent.  I'm guessing that -20db might be just about
> right.


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[SlimDevices: Audiophiles] Re: Transporter arrived -- volume attenuation question, help?

2006-10-20 Thread highdudgeon

Answered my own question -- DUH.  XLR is XLR and under a different
specification.  The attenuaition thing is for RCA only.  Good thing my
amp takes balanced or RCA.

Anyway, if anyone is curious, I set the attenuation to -30db.  That's
too much.  With the volume maxed out it's not exactly loud.  Halfway
down and it is silent.  I'm guessing that -20db might be just about
right.


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