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July 25, 2014, 07:40:33 AM
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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  valvecaster impedance questions 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: valvecaster impedance questions  (Read 466 times)
runmikeyrun
Posts: 2249


Mike T. Akron, OH


valvecaster impedance questions
« on: March 06, 2012, 04:08:24 PM »

Hey guys,

I am pretty far in the dark when it comes to impedance.  I have a fellow who wants a valvecaster to plug his acoustic bass into.  He has a piezo pickup on it.  He's also running an eq pedal.  Ultimately, all that is fed to a standard bass amp.  I'm reading some things that piezo pickups for acoustic basses are ULTRA high impedance.  Not sure if the valvecaster will play nice with that or not.

My questions are:

Does the valvecaster work better with higher or lower impedance signals in and out?

His eq pedal's input impedance is 500k ohms, and output impedance is 510 ohms.  Would he be best going piezo-->eq-->valvy or piezo-->valvy-->eq?  He's plugging into the input of a bass amp after his pedals.

I'm not sure if just a stock valvecaster will work for him or if I need to build a buffer onto the input.

Thanks guys, sorry for all the questions.
« Last Edit: March 06, 2012, 04:11:24 PM by runmikeyrun » Logged

I'm so metal, I only use Gain laundry detergent.

I know what a wipe knot is!!!  Isn't that something you end up having to do after bad Mexican?  -ayayay!

The Black Mercy- thrash, punk, and stoner metal with a touch of surf...  Find us on facebook.
artifus
Posts: 1742


dare to be na´ve


Re: valvecaster impedance questions
« Reply #1 on: March 06, 2012, 04:26:36 PM »

http://www.muzique.com/news/piezo-pickups/

*edit* suck it and see i'd say. maybe he should hit a piezo buffer ^ before anything else.
« Last Edit: March 06, 2012, 04:33:02 PM by artifus » Logged

runmikeyrun
Posts: 2249


Mike T. Akron, OH


Re: valvecaster impedance questions
« Reply #2 on: March 06, 2012, 04:40:08 PM »

That looks like a great idea!  I can build one right before the signal goes into the first gain stage.
Logged

I'm so metal, I only use Gain laundry detergent.

I know what a wipe knot is!!!  Isn't that something you end up having to do after bad Mexican?  -ayayay!

The Black Mercy- thrash, punk, and stoner metal with a touch of surf...  Find us on facebook.
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