Pad: Difference between revisions
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Q: What is a Pad? | Q: What is a Pad? | ||
A "pad" is short for an "Attenuation Pad". | A: "pad" is short for an "Attenuation Pad". | ||
This is a device used to lower the signal level between two | This is a device used to lower the signal level between two devices. | ||
With the L1® family of products, the most likely place you will use this is in front of a [[Model I]] (or [[Classic]]) Power Stand Channel 1 or Channel 2. | |||
[[File:Pad.jpg|link=http://www.bing.com/search?q=whirlwind+IMPAD20|200px|Find them on the web]] | |||
* Cost: $20-30 on the web | |||
Pads can also help when connecting the | Sources: | ||
* [http://www.bing.com/search?q=whirlwind+IMPAD20 Search results on the web] | |||
*You might find something like this in a local music store if they have a Pro Audio department. | |||
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=== Pad between L1 Pro XLR Inputs and Line Level Source === | |||
The L1 Pro channel 1 and 2 inputs use Combo Jacks (XLR and 1/4 inch (6.3 mm) Tip-Ring-Sleeve or 1/4 inch (6.3mm) Tip-Sleeve. The XLR inputs are MIC level inputs. If you want to connect a Line Level source, you may clip or overload the L1 input, or have trouble controlling the volume. Use a Pad to attenuate (lower) the signal for a better match if using the XLR inputs. | |||
Line Level Sources: | |||
* L1 Pro Line Out | |||
* S1 Pro+ Line Out | |||
=== Pad between S1 Pro and S1 Pro+ XLR Inputs and Line Level Source === | |||
The L1 Pro channel 1 and 2 inputs use Combo Jacks (XLR and 1/4 inch (6.3 mm) Tip-Ring-Sleeve or 1/4 inch (6.3mm) Tip-Sleeve. The XLR inputs are MIC level inputs. If you want to connect a Line Level source, you may clip or overload the L1 input, or have trouble controlling the volume. Use a Pad to attenuate (lower) the signal for a better match if using the XLR inputs. | |||
Line Level Sources: | |||
* L1 Pro Line Out | |||
* S1 Pro+ Line Out | |||
=== Pad between {{Model II}} and {{A1}} === | |||
If you are using a {{Model II}} with a {{B2}} and an {{A1}}, you may find that the Red LED on the {{A1}} lights up earlier than expected. You can put a 10 dB Pad between the Model II Power Stand Bass Line Out and the {{A1}} input. | |||
Unfortunately, most Pads have XLR connectors, so you may need to get some Tip-Ring-Sleeve to XLR adapters to make all the connections. | |||
=== Pads for {{PS1}} Inputs === | |||
{{Model I icon}} {{Classic icon}} | |||
We use pads with our {{PS1}}'s when running a pro level +4 dBu signal (e.g. output from a mixer) to the XLR inputs on Channels 1 or 2. We want to do this because the input sensitivity for these inputs is set for microphones. To get a better match for levels between the source and our inputs, we can use a pad. | |||
Pads can also help when connecting the Power Stand Line Outs to semi-pro or consumer recording devices. If the Power Stand Line Outs are too high for the recorder's inputs, a pad can be used to prevent overdriving those inputs into clipping distortion. | |||
==== Signal Source that has a Pad ==== | ==== Signal Source that has a Pad ==== | ||
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=== Pad with {{PS1}} Line Outs === | === Pad with {{PS1}} Line Outs === | ||
A -20dB pad is also a good choice when connecting the | A -20dB pad is also a good choice when connecting the Power Stand Line Outs to a house PA, or other off-stage system. This would ensure that the house mixing console's inputs can handle the signal level without being overdriven into distortion, especially if the house console has insufficient built-in pads, or none at all. (Beware of the potential for Ground Loops here.) | ||
=== {{T1}} No Pads Required === | === {{T1}} No Pads Required === | ||
{{T1 icon}} | |||
{{:T1 ToneMatch® Audio Engine / XLR Inputs Sensitivity}} | {{:T1 ToneMatch® Audio Engine / XLR Inputs Sensitivity}} | ||
=== Daisy Chaining {{PS1}}s === | === Daisy Chaining {{PS1}}s === | ||
Another application (although relatively rare) is if you want to connect the output of one {{PS1}} to input of another. Sometimes called ''daisy chain''ing, you can connect the Line-Out of one {{PS1}} to Channel 1 or 2 of another. In that case you probably want to have a -20 dB pad inline, between the Line-Out of the first System and the Channel 1 or 2 XLR input of the second. See [[PS1 Powerstand / Daisy Chain]] for more information. | Another application (although relatively rare) is if you want to connect the output of one {{PS1}} to input of another. Sometimes called ''daisy chain''ing, you can connect the Line-Out of one {{PS1}} to Channel 1 or 2 of another. In that case you probably want to have a -20 dB pad inline, between the Line-Out of the first System and the Channel 1 or 2 XLR input of the second. {{Why Use a -20 dB Pad}} | ||
See [[PS1 Powerstand / Daisy Chain]] for more information. | |||
You can find separate attenuation pads like this: | You can find separate attenuation pads like this: | ||
[[ | [[File:Pad.jpg|link=http://www.bing.com/search?q=whirlwind+IMPAD20|200px|Find them on the web]] | ||
Cost: $20-30 on the web | Cost: $20-30 on the web | ||
Sources: | Sources: | ||
* [http://www.bing.com/search?q=whirlwind+IMPAD20 Search results on the web] | |||
*http://www. | |||
*You might find something like this in a local music store if they have a Pro Audio department. | *You might find something like this in a local music store if they have a Pro Audio department. | ||
This an example, and you will want to look into the details to determine if you need a pad, and the kinds of connections that are appropriate for your input device. | This is an example, and you will want to look into the details to determine if you need a pad, and the kinds of connections that are appropriate for your input device. | ||
== More Formal Definitions == | == More Formal Definitions == | ||
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[[Category:Pad]] | [[Category:Pad]] | ||
[[Category:XLR]] | [[Category:XLR]] | ||
[[Category:Daisy Chain]] | |||