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Author Topic: uPRE - Portable battery powered stereo microphone preamp  (Read 4830 times)

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Offline hammerhorror

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uPRE - Portable battery powered stereo microphone preamp
« on: January 08, 2012, 06:41:52 PM »
Found this preamp while researching another product.

http://www.audioroot.fr/portable-battery-powered-stereo-microphone-preamp.html

I'd love to hear one in action. Anyone ever heard of this preamp?
Mics: Schoeps MK4 & MK41, AKG CK63 (Naiant Actives)
 
Preamps: Naiant KCY Littlebox

Recorders: Sound Devices 664, Sony PCM-M10

Offline rastasean

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #1 on: January 08, 2012, 07:59:00 PM »
Advice is a form of nostalgia, dispensing it is a way of fishing the past from the disposal, wiping it off, painting over the ugly parts and recycling it for more than it’s worth.

Offline acidjack

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #2 on: January 09, 2012, 03:57:34 PM »
Costs a lot more than a Naiant box and therefore had better sound a lot better to be a contender... but I liked this:

"5 hours typical battery autonomy with 2 Schoeps CMC6Ug
10 hours battery autonomy with dynamic microphones"
Mics: Schoeps MK4V, MK41V, MK5, MK22> CMC6, KCY 250/5, KC5, NBob; MBHO MBP603/KA200N, AT 3031, DPA 4061 w/ d:vice, Naiant X-X, AT 853c, shotgun, Nak300
Pres/Power: Aerco MP2, tinybox v2  [KCY], CA-UBB
Decks: Sound Devices MixPre 6, Zoom F8, M10, D50

My recordings on nyctaper.com: http://www.nyctaper.com/?tag=acidjack | LMA: http://www.archive.org/bookmarks/acidjack | twitter: http://www.twitter.com/acidjacknyc | Soundcloud: https://soundcloud.com/acidjacknyc

Offline hi and lo

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #3 on: January 09, 2012, 04:05:23 PM »
I can definitely say I've lost much of my interest in this pre since that thread came up last year. Having gotten a lot of experience with the Naiant products since and considering these are roughly similar in form factor and feature set, I cannot to save my life justify their price tag.

If you check out their other products, they do make some nifty stuff and I'm sure it's all rather high-quality, but the price / feature set isn't anywhere close to where it needs to be.

Offline rastasean

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #4 on: January 09, 2012, 05:16:50 PM »
What a REAL, HONEST testimonial!
 

I can definitely say I've lost much of my interest in this pre (uPRE) since that thread came up last year. Having gotten a lot of experience with the Naiant products since and considering these are roughly similar in form factor and feature set, I cannot to save my life justify their price tag.


--Live Music Archivist's opinion on Nainat products vs a $1130 pre-amp.
Advice is a form of nostalgia, dispensing it is a way of fishing the past from the disposal, wiping it off, painting over the ugly parts and recycling it for more than it’s worth.

Offline hi and lo

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #5 on: January 09, 2012, 05:35:31 PM »
What a REAL, HONEST testimonial!
 

:)

When Jon finishes his high-current, low noise op-amp design, I imagine it will be an even closer comparison. If he can also add output transformers and retain the internal battery, it then becomes a no-brainer.

Would still love to hear a uPRE recording, but doubtful we ever will due to its pricetag and European location.

Offline hi and lo

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #6 on: January 09, 2012, 10:55:47 PM »
When Jon finishes his high-current, low noise op-amp design, I imagine it will be an even closer comparison. If he can also add output transformers and retain the internal battery, it then becomes a no-brainer.

All of that is already done and the PCBs arrive tomorrow.  I don't think too many people will choose the low-noise amp though, it uses too much current and noise has not been a frequent complaint with the standard amp.

I'm not sure what your price point will be, but I definitely wouldn't underestimate a consumer's need to have the best. :)

If the battery life of a Tinybox were cut to a fraction of its stated 12-20 hours, which is conservative, I think more than a few people will be ok with that sacrifice for a sonically superior* unit. As long as it runs 5+ hours I imagine there will be more interest than suspected, including myself.

*being subject to the whims of ts.com, of course  ;D

Offline aaronji

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #7 on: January 10, 2012, 10:51:19 AM »
^^^ Those run-time estimates are for the P48 tinybox, I assume?

Offline Todd R

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Re: uPRE - Portable battery powered stereo microphone preamp
« Reply #8 on: January 10, 2012, 06:30:34 PM »
Sorry, not to keep mucking up the uPRE thread, but those phantom draws are for a single mic (x2 obviously), or do they represent the complete phantom load?

I have mics that draw 4ma/each and 4.6ma/each -- uh-oh!
Mics: Microtech Gefell m20/m21 (nbob/pfa actives), Line Audio CM3, Church CA-11 cards
Preamp:  none <sniff>
Recorders:  Sound Devices MixPre-6, Sony PCM-M10, Zoom H4nPro

 

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