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Author Topic: What's voltage should I use for line out?  (Read 642 times)

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Offline MakersMarc

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What's voltage should I use for line out?
« on: November 16, 2018, 02:20:21 PM »
My Activo ct 10 provides for choosable 0.7, 1, 1.25 or 2v for line out. Which is best?

Thanks!
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Offline morst

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Re: What's voltage should I use for line out?
« Reply #1 on: November 16, 2018, 03:24:15 PM »
My Activo ct 10 provides for choosable 0.7, 1, 1.25 or 2v for line out. Which is best?

Thanks!
It depends on what you are going into.  Is that voltage level the "nominal" or peak voltage level?


Professional mixing consoles can handle 2v nominal. (So can the Sony PCM-M10, but at peak, I think)
Semi-pro gear might not take more than 0.775 v (the old Zoom H2 max input level is 0.775v)
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Offline MakersMarc

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Re: What's voltage should I use for line out?
« Reply #2 on: November 19, 2018, 09:46:51 PM »
Thanks Morst. Have to check the manual. Have it set to 0.7 right now.

Running into old Nikko 520 receiver, 40 watts per channel.
« Last Edit: November 19, 2018, 09:54:09 PM by MakersMarc »
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Offline morst

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Re: What's voltage should I use for line out?
« Reply #3 on: November 20, 2018, 08:38:58 PM »
Thanks Morst. Have to check the manual. Have it set to 0.7 right now.

Running into old Nikko 520 receiver, 40 watts per channel.
Go low.
0.7 should be great. Any higher and you won't get to use the volume knob very much cause it will be really loud anyhow!?
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Offline 108Ω

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Re: What's voltage should I use for line out?
« Reply #4 on: November 22, 2018, 01:41:09 AM »
The 540 Manual is here:

https://www.vintageshifi.com/repertoire-pdf/Nikko.php


It's calling out  150mV / 30 Ω   

...So agreeing on 0.7v,  1.0v maybe, but watch for "tubby bottom syndrome"...


BTW, those Nikkos were well regarded
At that age where an inspection of the capacitors for leakage is due, if not done already.
Have someone who is experienced do the check, if you aren't familiar with the safety and specifics of the procedure.
Capacitors are cheap, some of those older transistors are nearly impossible to replace....  (bad caps can fry transistors)
« Last Edit: November 22, 2018, 02:13:05 AM by 108Ω »
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Re: What's voltage should I use for line out?
« Reply #5 on: November 22, 2018, 08:14:35 AM »
I've heard of "dormant bottom syndrome", I guess it's a real thing.

What do you mean by "tubby bottom syndrome"?  ???
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Re: What's voltage should I use for line out?
« Reply #6 on: November 22, 2018, 11:45:44 AM »
Thanks all!

I got the Nikko from the Stereo Hospital here in Tucson, they totally reconditioned it. It’s nice to know I can get vintage gear repaired here. Bought the Nikko, hi end late 80s Sony CD player with new laser, pair of B&W v202s all there and it all runs perfectly. 😀
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Offline 108Ω

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Re: What's voltage should I use for line out?
« Reply #7 on: November 23, 2018, 07:42:04 PM »
I've heard of "dormant bottom syndrome", I guess it's a real thing.

What do you mean by "tubby bottom syndrome"?  ???

Bass heavy from overloading the input circuit a little 

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Offline MakersMarc

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Re: What's voltage should I use for line out?
« Reply #8 on: November 24, 2018, 04:34:03 PM »
👍
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