[ddots-l] Re: head phone amp

  • From: "Phil Muir" <info@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
  • To: <ddots-l@xxxxxxxxxxxxx>
  • Date: Wed, 12 May 2010 12:43:04 +0100

Hay Sean.  Interesting read.  .  BTW, that article wouldn't open in Internet
Explorer however, was able to read it in Firefox.   Very odd. 


 
Regards, Phil Muir
Accessibility Training
Telephone: US (615) 713-2021
UK +44-1747-821-794
Mobile: UK +44-7968-136-246
E-mail:
info@xxxxxxxxxxxxxxxxxxxxxxxxxxx <mailto:info@xxxxxxxxxxxxxxxxxxxxxxxxxxx> 
URL:
http://www.accessibilitytraining.co.uk/

-----Original Message-----
From: ddots-l-bounce@xxxxxxxxxxxxx [mailto:ddots-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Sean A. Cummins
Sent: Wednesday, May 12, 2010 12:21 PM
To: ddots-l@xxxxxxxxxxxxx
Subject: [ddots-l] Re: head phone amp

FYI: And not to beet a dead horse...

http://www.epanorama.net/circuits/speaker_to_line.html


----- Original Message -----
From: "Jim Jackson" <cs2007@xxxxxxxxx>
To: <ddots-l@xxxxxxxxxxxxx>
Sent: Wednesday, May 12, 2010 3:50 AM
Subject: [ddots-l] Re: head phone amp


> Sorry Sean and anybody on the list that I might have led astray, I guess I

> misunderstood a response earlier from Phil on this same subject.  I hope 
> no one's fried there equipment because of my advice.
> ----- Original Message ----- 
> From: "Phil Muir" <info@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: <ddots-l@xxxxxxxxxxxxx>
> Sent: Wednesday, May 12, 2010 5:28 AM
> Subject: [ddots-l] Re: head phone amp
>
>
>> Sean wrote: Phil,
>>
>> so as to not start an opinion war.  Please explain to Jim and others, 
>> that
>> this is a quick way, but not optimum.
>>
>> Phil replied: agreed.  I haven't used that method hear at all.  An
>> alternative way of doing this would be to use all balanced cables for the
>> headphone amp and monitors etc.  You could use a  balanced jack that has 
>> two
>> stereo sockets on the end of it.  You would need two of those.  One for 
>> the
>> left output of the FW-1884, and one for the right.  You would then plug 
>> one
>> of the headphone amp outputs into the left hand jack lead and the left
>> output to your monitors into the other left hand socket on that cable. 
>> You
>> would then do the  same on the right hand one.  Have used cables like 
>> this
>> here for a number of years with 0 issues and checked out the implications

>> of
>> this, with a good friend from Absolute music over here in the UK before
>> actually doing this.  Another up side of this is totally 0 latency
>> monitoring as you can use the FW-1884's hardware monitoring feature.  The
>> down side though is that your monitors and headphone amp are on the same
>> output so when recording, you would have to turn your monitors off or, 
>> down
>> when tracking.
>>
>> Sean wrote: many of you may not know, but I have created a template that
>> allows for more then one master output for multiple room monitors, as 
>> well
>> as a template that allows for using the auxiliary outputs for things like
>> headphone monitors and other line level devices.  a Headphone amplifier 
>> is
>> not supposed to receive amplified signal.  Only line level, otherwise you
>> can easily fry the operational amplifier of the headphone amp.
>>
>> Phil replied: Creating a template like Sean's one is a good idea.  The
>> upside to this is that you don't have to use any strange cable
>> configurations and you can give vocalists affects such as reverb when
>> tracking.  The down side to this could be if you have a slower system as 
>> you
>> won't be able to use the 0 latency hardware monitoring feature on the
>> FW-1884.  This could mean that when tracking, you may hear a slight delay
>> when using affects through Sonar and this could potentially be an issue.
>> With regard to frying the op amps on headphone amps, not had that happen
>> here and from reading the FW-1884 manual, all outputs are balanced line 
>> so,
>> I can't see this being an issue.  Having said that, I am using a 
>> Behrenger
>> headphone amp so, wouldn't be that concerned if I fried anything, LOL!
>>
>> Regards, Phil Muir
>> Accessibility Training
>> Telephone: US (615) 713-2021
>> UK +44-1747-821-794
>> Mobile: UK +44-7968-136-246
>> E-mail:
>> info@xxxxxxxxxxxxxxxxxxxxxxxxxxx 
>> <mailto:info@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
>> URL:
>> http://www.accessibilitytraining.co.uk/
>>
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>
>
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