PreAmp for octo inputs

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Joined: Thu May 18, 2017 9:46 am

PreAmp for octo inputs

Post by K3nn3th » Fri Jun 02, 2017 9:42 pm

Hey Folks,

I'm planning to use the octo with a digital vinyl system (DVS), so i'll be connecting turntables to the octo.
This would require preamps to amplify the phono signal to a line level, I do have some lying around, but would rather have an on-board solution because it would mean less cables/PSUs, less clutter, less space taken up, etc.
What would be the best approach to achieve this? stack some self made preamps? position them next to each other?
i have no idea what dimensions they would be.

Sadly i'm no soldering pro but i know a few people who would help.
maybe someone here has a nice idea regarding this..


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Joined: Thu Jul 06, 2017 12:54 am

Re: PreAmp for octo inputs

Post by Rspiaudio2017 » Tue Jul 11, 2017 3:20 am

I have the same problem

Line in records fine for me, mics I need a external power and/or a preamp

You need external power, one of like these ... plate=mics

Or/and a preamp that also provide voltage like these: ... /SP-PREAMP

I have a wildlife audio technica Condenser Shotgun Microphone with preamp and still the audio is very weak

Another problem I found is my aluminum RSP case is charged with static every time I switch on the preamp

With line in with high bit rate really very clear

I hope this would help

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Joined: Tue Aug 15, 2017 6:41 am

Re: PreAmp for octo inputs

Post by jimt » Wed Aug 16, 2017 2:24 am

Consider a low cost preamp: PA-4 HYDROPHONE PREAMPLIFIER - board only $60

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