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Author Topic: +50dBu  (Read 1806 times)

andy craig

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+50dBu
« on: September 21, 2021, 09:26:50 PM »

I received a tender document which calls for the supply of DI units which can handle an input signal of +50dBu.
I can't imagine a situation where you would ever want to deliver mains voltage to a DI, but, I'm not a consultant.

andy
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Brian Jojade

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Re: +50dBu
« Reply #1 on: September 22, 2021, 04:21:50 AM »

Well, you don't WANT to do that, but if some numbnutz ties 240 into an XLR line, you can rest easy knowing you DI can handle it.
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Brian Jojade

Helge A Bentsen

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Re: +50dBu
« Reply #2 on: September 22, 2021, 02:41:16 PM »

Well, it's "only" 7500W/8 ohm. Maybe someone is using it to record the output of a Powersoft X4L? :P

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Mac Kerr

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Re: +50dBu
« Reply #3 on: September 22, 2021, 04:15:24 PM »

Well, it's "only" 7500W/8 ohm. Maybe someone is using it to record the output of a Powersoft X4L? :P

But what is it at the 10k-100k the DI actually loads the amp with?

Mac
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John Roberts {JR}

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Re: +50dBu
« Reply #4 on: September 22, 2021, 04:43:44 PM »

dBu is a voltage relative to 0.7746 Vac.  +50dBu is like mains voltage in Europe, or UK, or Oz....   

Silly

JR
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Ivan Beaver

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Re: +50dBu
« Reply #5 on: September 22, 2021, 07:46:39 PM »

I received a tender document which calls for the supply of DI units which can handle an input signal of +50dBu.
I can't imagine a situation where you would ever want to deliver mains voltage to a DI, but, I'm not a consultant.

andy
Do they give a representative model number?

Sometimes people specify products that are not made.  Sometimes to weed out people who don't understand.

I had one case years ago in which I got the job, simply because I called and questioned the spec.

The "designer" said that I was the only person who understood how crazy the spec was, and called to question.

Others just overlooked it and didn't care.

Kinda like brown M&Ms on the staging rider
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John Roberts {JR}

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Re: +50dBu
« Reply #6 on: September 22, 2021, 08:55:11 PM »

What do I get if I make a DI that handles +50dBu ?

JR
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Tim Hite

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Re: +50dBu
« Reply #7 on: September 23, 2021, 01:45:36 AM »

What do I get if I make a DI that handles +50dBu ?

JR

110v out the other end?
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Bad Quail
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Tim McCulloch

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Re: +50dBu
« Reply #8 on: September 23, 2021, 02:01:49 PM »

What do I get if I make a DI that handles +50dBu ?

JR

The Man o' War Prize. ;)
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Henry Cohen

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Re: +50dBu
« Reply #9 on: September 23, 2021, 05:56:33 PM »

What do I get if I make a DI that handles +50dBu ?

Hand warmer?
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Henry Cohen

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John Roberts {JR}

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Re: +50dBu
« Reply #10 on: September 23, 2021, 07:04:47 PM »

I can make it handle that input level, output level not so easy...

JR
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Lee Douglas

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Re: +50dBu
« Reply #11 on: September 24, 2021, 07:57:40 AM »

Well, you don't WANT to do that, but if some numbnutz ties 240 into an XLR line, you can rest easy knowing you DI can handle it.

I keep picturing a cam lock to XLR adapter in my head.
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Brian Jojade

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Re: +50dBu
« Reply #12 on: September 25, 2021, 10:02:20 AM »

I keep picturing a cam lock to XLR adapter in my head.

 ;D
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Brian Jojade

Daniel Levi

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Re: +50dBu
« Reply #13 on: September 25, 2021, 01:49:39 PM »

;D

I wanted and Electret mic, AN ELECTRET MIC YOU FOOL, NOT AN ELECTRIC ONE!
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Re: +50dBu
« Reply #13 on: September 25, 2021, 01:49:39 PM »


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