Still risky to mix stereo and mono jack plugs?

[BassTractor]

Folks,

I seem to remember from days yonder that especially tube amps could be shorted when one did something wrong as to plugging stereo jack plugs into them.

If so, is this still the case?

Then, when connecting an iPad to my Little Bastard, how should I do that?
- Mono to mono? Or would that short the right channel in the iPad?
- Make a lead myself: stereo (without right channel) to mono?
- Er ... you get the drift.


Voltage-wise and impedance-wise I thought I was in the clear:
iPad out: 1 V, 4.4 Ohm
LB high in: 0.5 Volt, 600 Ohm - probably.

Thanks for any help.


best,
bert

[obbm]

To go from iPad Stereo to LB Mono then you need to mix the left and right signals down to mono using 22K resistors.

[BassTractor]

[quote name='obbm' timestamp='1356734423' post='1913147']
To go from iPad Stereo to LB Mono then you need to mix the left and right signals down to mono using 22K resistors.
[/quote]

Thanks for responding.
I was hoping to avoid that, thinking the signal would basically be twice the same. See, what I forgot to tell may be essential: that I'm only thinking of plugging my bass into the iPad and process it in AmpKit before sending the signal to the LB.
I was presupposing that any stereoness from processing is not sought after and can easily be avoided, by for instance not using a stereo flanger in AmpKit - that kinda thing.

best,
bert

[xgsjx]

You could take a stereo to 2 mono jacks & just plug one channel into the amp.

[umph]

[quote name='BassTractor' timestamp='1356732531' post='1913123']
Folks,

I seem to remember from days yonder that especially tube amps could be shorted when one did something wrong as to plugging stereo jack plugs into them.

If so, is this still the case?

Then, when connecting an iPad to my Little Bastard, how should I do that?
- Mono to mono? Or would that short the right channel in the iPad?
- Make a lead myself: stereo (without right channel) to mono?
- Er ... you get the drift.


Voltage-wise and impedance-wise I thought I was in the clear:
iPad out: 1 V, 4.4 Ohm
LB high in: 0.5 Volt, 600 Ohm - probably.

Thanks for any help.


best,
bert
[/quote]

input impedance on amps is up in the 1meg range. Assume you're using the effects return?

[umph]

[quote name='BassTractor' timestamp='1356738732' post='1913209']
Thanks for responding.
I was hoping to avoid that, thinking the signal would basically be twice the same. See, what I forgot to tell may be essential: that I'm only thinking of plugging my bass into the iPad and process it in AmpKit before sending the signal to the LB.
I was presupposing that any stereoness from processing is not sought after and can easily be avoided, by for instance not using a stereo flanger in AmpKit - that kinda thing.

best,
bert
[/quote]

use mono cables in that case You're gonna end up with a mono output anyway and trying to put a stereo signal in is just going to end up with phase issues

[BassTractor]

[quote name='umph' timestamp='1356740413' post='1913242']
input impedance on amps is up in the 1meg range. Assume you're using the effects return?
[/quote]

The Low In would indeed, but as I've been led to understand, the High In is very much in another range. Don't know this for a fact though, but can always ask Ashdown. Don't see the need for that though.
BTW, it's .45v input, not as I wrote a .5 one - not that that matters iirc.



[quote name='xgsjx' timestamp='1356740065' post='1913233']
You could take a stereo to 2 mono jacks & just plug one channel into the amp.
[/quote]

D'oh! Never even crossed my mind. Thanks.

[IMG]http://i1170.photobucket.com/albums/r525/basstractor1/Homer-D_oh_zps091e55b5.jpg[/IMG]

Edited December 29, 2012 by BassTractor

[umph]

[quote name='BassTractor' timestamp='1356745060' post='1913269']
The Low In would indeed, but as I've been led to understand, the High In is very much in another range. Don't know this for a fact though, but can always ask Ashdown. Don't see the need for that though.
BTW, it's .45v input, not as I wrote a .5 one - not that that matters iirc.
[/quote]

The high and low will both be about 1meg

[BassTractor]

[quote name='umph' timestamp='1356784051' post='1913528']
The high and low will both be about 1meg
[/quote]

OK. Thanks for that. That's not a problem though, is it?


best,
bert

[umph]

[quote name='BassTractor' timestamp='1356793947' post='1913684']
OK. Thanks for that. That's not a problem though, is it?


best,
bert
[/quote]

Not for this application since it's not hifi

[BassTractor]

[quote name='umph' timestamp='1356794561' post='1913694']
Not for this application since it's not hifi
[/quote]

Ah! Great. Thanks a lot, man!


best,
bert