[ddots-l] Re: head phone amp
- From: "Phil Muir" <info@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <ddots-l@xxxxxxxxxxxxx>
- Date: Wed, 12 May 2010 17:37:53 +0100
O yeh! You need to be really careful for sure! I have a friend who pulled
out a mains plug, thinking that they were just disconnecting there guitar
amp when in fact, they were pulling the power on all of the power amps that
were supplying a 5K system. That little accident fried a tweeter on one of
my EV SX200's which, they were using for the on stage monitoring and also
fried a tweeter on a separate on stage monitor. Apparently, there was quite
a pop when he did that. The good people who service EV here in the UK, said
they had never seen speaker damage like it!
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 Steve Wicketts
Sent: Wednesday, May 12, 2010 1:52 PM
To: ddots-l@xxxxxxxxxxxxx
Subject: [ddots-l] Re: head phone amp
Hey Jim,
you were only trying to help.
Line signals, monitor signals and amped signals can get confusing.
When Live with big sound systems is where you need to be very careful.
a musician I know went to take two cables which were plugged in to the
powered mixer's powered socket outs and was going to plug them in to two
active speakers rather than the passive speakers...
That would have more than fried an egg!
Steve W
----- Original Message -----
From: "Jim Jackson" <cs2007@xxxxxxxxx>
To: <ddots-l@xxxxxxxxxxxxx>
Sent: Wednesday, May 12, 2010 11:50 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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