[ddots-l] Re: head phone amp

  • From: "Jim Jackson" <cs2007@xxxxxxxxx>
  • To: <ddots-l@xxxxxxxxxxxxx>
  • Date: Wed, 12 May 2010 06:50:20 -0400

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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