Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread drmatt

celo wrote: 
> Since I have not used an amp/DAC before I am trying to figure it out how
> to connect. Currently, I connected the Mojo via USB to SBT (EDO).
> 
> Yes, (@Man in a van), I connect the 3.5mm cable to the headphone output
> on the Mojo and connect the RCA ends to my amp (no volume on the amp).
> So, no need to use line out mode (I assume). 
> 
> What I want to know is that what amp is feeding my speakers? :) The Mojo
> or my amp?:) I do not think Mojo's amp can be bypassed. I am confused
> here as how it works.
So you are basically relying on the mojo to behave as a pre-amp, because
your "amp" has no volume control so is presumably a fixed gain power
amp. Given that the volume control on the mojo has no remote control
capability I would do the following:

Turn SBT vol all the way down
Set mojo to "line" level output via magic button sequence
Use SBT volume control to control sound level.

If you find you can't get to even 30% vol on SBT without it being too
loud you may need to lower the mojo volume setting further. But note
that both these devices use digital volume controls. The mojo has a
higher resolution digital volume control than the SBT, but you still may
lose resolution at low volumes on either, depending on the gain of your
power amp.





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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread drmatt

Man in a van wrote: 
> I had a quick skim of the specs and line level output is given as
> "3v"
> still above the normal 2v or so.

Yep, but this is not 100% volume, in the stereophile review he measured
it at getting on for 4.8V.





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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread Man in a van

celo wrote: 
> Since I have not used an amp/DAC before I am trying to figure it out how
> to connect. Currently, I connected the Mojo via USB to SBT (EDO).
> 
> Yes, (@Man in a van), I connect the 3.5mm cable to the headphone output
> on the Mojo and connect the RCA ends to my amp (no volume on the amp).
> So, no need to use line out mode (I assume). 
> 
> What I want to know is that what amp is feeding my speakers? :) The Mojo
> or my amp?:) I do not think Mojo's amp can be bypassed. I am confused
> here as how it works.


Well Celo, this is how it works when I use an iFi Nano dac.

I use the headphone output to my PRE amplifier.

The output is set to 100%, volume knob turned completely right (this is
on the mfg's advice as it is essentially a passive pre-amp).

Doing this effectively takes it out of the equation.

I assume that the amplifier you are using (info would be nice) is a
power amplifier. 

The headphone output on the Mojo could then be used as a a pre
amplifier.

You need to check your specs, as the volume output could be very low,
depending o the sensitivity of the power amp you are feeding it into.

Better still, contact Chord with full information of the equipment you
are using and ask their advice. They should be able to advise you if the
headphone output is sufficient or that you need to use the line ouput
setting. (I'm guessing that if you choose the latter then a pre-amp
would be required).

When asking these type of questions it is important to give as much
information and detail as possible.



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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread celo

Man in a van wrote: 
> I had a quick skim of the specs and line level output is given as
> 
> 
> 
> still above the normal 2v or so.
> 
> The headphone outputs (which I assumed the OP wants to use) are given as
> 
> 
> 
> 
> I posted a link to someone using the dac with EDO on a SBTouch.
> 
> I have not heard either the Mojo or the Hugo but have heard the 2Qute
> thingy and that sounded fine to my old ears.

Since I have not used an amp/DAC before I am trying to figure it out how
to connect. Currently, I connected the Mojo via USB to SBT (EDO).

Yes, (@Man in a van), I connect the 3.5mm cable to the headphone output
on the Mojo and connect the RCA ends to my amp (no volume on the amp).
So, no need to use line out mode (I assume). 

What I want to know is that what amp is feeding my speakers? :) The Mojo
or my amp?:) I do not think Mojo's amp can be bypassed. I am confused
here as how it works.



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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread Man in a van

drmatt wrote: 
> As per my comment in the new thread, note that full output level is
> nearly 4.8V on the mojo, so this might totally blow your amp out the
> water. Do not default to 100% anything..
> 
> Do you have any way of confirming that EDO is capable of driving the
> mojo in asynchronous mode? Plain old synch USB does not have the same
> sonic advantages as asynchronous and you may as well just use a
> perfectly working optical or coaxial spdif cable.


I had a quick skim of the specs and line level output is given as

> Line Level Mode
> To set the output level to 3V ( line level ) for connection to a
> preamplifier press both volume buttons 
> together  when  switching  on  the  unit.  Both  volume  balls  will 
> illuminate  light  blue.  This  mode  is  not 
> remembered so when you switch off it will reset back to the previous
> volume stored for safety reasons.
> 

still above the normal 2v or so.

The headphone outputs (which I assumed the OP wants to use) are given as


> output of 35mW into 600ohms, rising to 720mW into 8 ohms.

I posted a link to someone using the dac with EDO on a SBTouch.

I have not heard either the Mojo or the Hugo but have heard the 2Qute
thingy and that sounded fine to my old ears.



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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread drmatt

As per my comment in the new thread, note that full output level is
nearly 4.8V on the mojo, so this might totally blow your amp out the
water. Do not default to 100% anything..

Do you have any way of confirming that EDO is capable of driving the
mojo in asynchronous mode? Plain old synch USB does not have the same
sonic advantages as asynchronous and you may as well just use a
perfectly working optical or coaxial spdif cable.





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Re: [SlimDevices: Touch] Anyone using Mojo with SBT?

2016-10-31 Thread drmatt

Am testing the Hugo as I write this. Very impressive. Too many options
and a complete pain in the butt to operate, but excellent sound quality.

I would stick with using the volume on the SBT if that's what you're
used to, and set a static line out volume level on the mojo. Watch out
though as these things seem to peak way over the expected 2V so you may
need to just manually reduce the mojo volume level to something
appropriate and leave it there.

Interesting you mention connection via USB. Does that work? I know there
is support for some offboard DACs in the SBT but does it include
asynchronous?





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Re: [SlimDevices: Touch] Anyone using Mojo with SBT?

2016-10-31 Thread celo

pippin wrote: 
> What is a Mojo?


Sorry. I should have mentioned. It is a DAC.

http://www.chordmojo.com/



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Re: [SlimDevices: Touch] Anyone using Mojo with SBT?

2016-10-31 Thread pippin

What is a Mojo?



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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread celo

Man in a van wrote: 
> Hi celo, here's my 2 bits
> 
> Install EDO on the SBTouch with Mojo connected by USB.
> 
> https://docs.google.com/spreadsheets/d/1UnnpylzUvFW3oi0ip5ghpuWFfDVcufKCn8k54uhqYKQ/edit#gid=0
> 
> 
> Connect Mojo to amp.
> 
> I'm guessing a bit now, but from my experience with an iFi Nano dac, set
> the volume on the Mojo to max.
> 
> In LMS on the player page in Settings set the volume to Variable output
> as you will be controlling this with your iphone.
> 
> Controlling the volume in this manner can be a bit risky, make sure you
> turn down the volume before switching off.
> 
> Its safer to control the volume with a pre-amp and have both outputs on
> the Mojo and SBT set to 100%.
> 
> Maybe/maybe not, switch off the charger when playing music.
> 
> Make sure the volume in LMS is really low before playing any music for
> the first time.
> 
> If you can adjust the digital amp volume I would suggest you set it to
> the max you are likely to use (use the variable control on your 'phone)
> and then back it off a bit and leave it at that setting. This will give
> you some headroom for when you start everything at full blast :p;):D.
> 
> Keep safe, it's dangerous out there:cool:


Thank you! For more input, I opened a new thread. Hope it is OK:)



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[SlimDevices: Touch] Anyone using Mojo with SBT?

2016-10-31 Thread celo

Hello,

Just bought the Mojo and will hook it up tonight.

I will use my Mojo strictly for my hi-fi set up. No headphones. Just my
speakers.

This is what I have and how I will connect it:
Mojo > SBT via USB cable
SBT > Digital amp (no volume) via 3.5mm RCA cable
Logitech Server running on iMac
Control the music via Logitech iPhone App
Mojo will be connected at all times to Apple 1A charger

How should I control volume? How should I set the volume on the SBT?
Should I use the Mojo for volume control?

Any recommendations on how I will be connecting and using it?

Thanks!



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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread Man in a van

celo wrote: 
> Hello,
> 
> Just bought the Mojo and will hook it up tonight. Why do you say USB is
> preferred? 
> 
> I will use my Mojo strictly for my hi-fi set up. No headphones. Just my
> speakers.
> 
> This is what I have and how I will connect it:
> Mojo > SBT via USB cable
> SBT > Digital amp (no volume) via 3.5mm RCA cable
> Logitech Server running on iMac
> Control the music via Logitech iPhone App
> Mojo will be connected at all times to Apple 1A charger
> 
> How should I control volume? How should I set the volume on the SBT?
> Should I use the Mojo for volume control?
> 
> Any recommendations on how I will be connecting and using it?
> 
> Thanks!

Hi celo, here's my 2 bits

Install EDO on the SBTouch with Mojo connected by USB.

https://docs.google.com/spreadsheets/d/1UnnpylzUvFW3oi0ip5ghpuWFfDVcufKCn8k54uhqYKQ/edit#gid=0


Connect Mojo to amp.

I'm guessing a bit now, but from my experience with an iFi Nano dac, set
the volume on the Mojo to max.

In LMS on the player page in Settings set the volume to Variable output
as you will be controlling this with your iphone.

Controlling the volume in this manner can be a bit risky, make sure you
turn down the volume before switching off.

Its safer to control the volume with a pre-amp and have both outputs on
the Mojo and SBT set to 100%.

Maybe/maybe not, switch off the charger when playing music.

Make sure the volume in LMS is really low before playing any music for
the first time.

If you can adjust the digital amp volume I would suggest you set it to
the max you are likely to use (use the variable control on your 'phone)
and then back it off a bit and leave it at that setting. This will give
you some headroom for when you start everything at full blast :p;):D.

Keep safe, it's dangerous out there:cool:



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Re: [SlimDevices: Touch] Touch with EDO does not remember output setting

2016-10-31 Thread celo

BertdeJong wrote: 
> Ronnie,
> 
> Thanks for your reply, I will try. However I prefer the USB output, the
> DAC is realy designed to use it an sounds wonderfull using USB.
> 
> Kind regards,
> 
> Bert

Hello,

Just bought the Mojo and will hook it up tonight. Why do you say USB is
preferred? 

I will use my Mojo strictly for my hi-fi set up. No headphones. Just my
speakers.

This is what I have and how I will connect it:
Mojo > SBT via USB cable
SBT > Digital amp (no volume) via 3.5mm RCA cable
Logitech Server running on iMac
Control the music via Logitech iPhone App
Mojo will be connected at all times to Apple 1A charger

How should I control volume? How should I set the volume on the SBT?
Should I use the Mojo for volume control?

Any recommendations on how I will be connecting and using it?

Thanks!



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