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Author Topic: Building your own Preamp?  (Read 4189 times)

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Offline lordbelial

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Building your own Preamp?
« on: July 27, 2005, 10:58:35 AM »
Hi there!

Just have one simple question.

I would like to build my own "home made" preamp for my mics and battery box. I really don't know if this is a good idea, so I'm referring to you.

Since in my country, Spain, there is no taper culture just like in the USA, we can't get phantom powered mics (because they're not as stealthier as condenser mics just like the core sounds or the ATXXX from Soundprofessionals), and Pre-amps, A/D's, etc...

My first thought was a pre-amp stage between the output of my battery box (SP-SPBS-1) and the line-in from my NJB3. Just because,

-Battery bax is powering my mics
-So, I could boost the output from my battery box
-So my levels in NJB3 would be higher, keeping my NJB3 at 0 db gain (because I prefer that, NJB3 gain is pure digital and I prefer to boost later, in adobe audition)

But I have no idea on where can I start...

So, any help? Would be very appreciated, and, if the project is succesfull, could be a very good help for tapers like me, who are obligated on keeping his gears and rigs as stealthier as possible.

Thanks!

Actual Gear:

stealth  - AT943 (c,o,sc,h) > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Ultrastealth  - DPA 4061 > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Open - BSC1-K1/K2/K3/K4 > Segue Dogstars > Marantz PMD671 busman t-mod

Playback: PC > M-Audio Fast Track Pro > KRK RP6 actives

My shows on the archive: http://www.archive.org/bookmarks/tapemaniac
Member of  Busman Audio team

Offline lordbelial

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Re: Building your own Preamp?
« Reply #1 on: July 28, 2005, 02:51:55 AM »
I have found out this,

http://www.tkk.fi/Misc/Electronics/circuits/micamp.html

What do you think about it?
Actual Gear:

stealth  - AT943 (c,o,sc,h) > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Ultrastealth  - DPA 4061 > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Open - BSC1-K1/K2/K3/K4 > Segue Dogstars > Marantz PMD671 busman t-mod

Playback: PC > M-Audio Fast Track Pro > KRK RP6 actives

My shows on the archive: http://www.archive.org/bookmarks/tapemaniac
Member of  Busman Audio team

Offline poorlyconditioned

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Re: Building your own Preamp?
« Reply #2 on: July 28, 2005, 09:55:29 AM »
I have found out this,

http://www.tkk.fi/Misc/Electronics/circuits/micamp.html

What do you think about it?

I think this is what you want:
  http://www.geocities.com/ferocious_1999/md/micpreamp2.html

A simple preamp based on a single OPamp chip like NE5532.  I've also used OPA2134 in this circuit.  It is really easy to build and a lot of fun.

  Richard
Mics: Sennheiser MKE2002 (dummy head), Studio Projects C4, AT825 (unmodded), AT822 franken mic (x2), AT853(hc,c,sc,o), Senn. MKE2, Senn MKE40, Shure MX183/5, CA Cards, homebrew Panasonic and Transsound capsules.
Pre/ADC: Presonus Firepod & Firebox, DMIC20(x2), UA5(poorly-modded, AD8620+AD8512opamps), VX440
Recorders: Edirol R4, R09, IBM X24 laptop, NJB3(x2), HiMD(x2), MD(1).
** This individual has moved to user "illconditioned" **

Offline dklein

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Re: Building your own Preamp?
« Reply #3 on: July 29, 2005, 08:49:44 PM »

I think this is what you want:
  http://www.geocities.com/ferocious_1999/md/micpreamp2.html

A simple preamp based on a single OPamp chip like NE5532.  I've also used OPA2134 in this circuit.  It is really easy to build and a lot of fun.

  Richard


I'll second that recommendation!
KM 184 > V2 > R4
older recording gear: UA-5  / emagic A62 / laptop / JB3 / CSB / AD20 / Sharp MT-90 / Sony MDS-JE510
Playback: Pioneer DV-578 > Lucid DA 9624 >many funny little british boxes > Linn Isobarik PMS

Offline lordbelial

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Re: Building your own Preamp?
« Reply #4 on: August 02, 2005, 02:53:58 AM »
Thanks.

I guess I'll build up the "pre" during this weekend. I'll let you know how it worked.
Actual Gear:

stealth  - AT943 (c,o,sc,h) > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Ultrastealth  - DPA 4061 > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Open - BSC1-K1/K2/K3/K4 > Segue Dogstars > Marantz PMD671 busman t-mod

Playback: PC > M-Audio Fast Track Pro > KRK RP6 actives

My shows on the archive: http://www.archive.org/bookmarks/tapemaniac
Member of  Busman Audio team

Offline muj

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Re: Building your own Preamp?
« Reply #5 on: August 02, 2005, 07:04:39 AM »
Hi there!

Just have one simple question.

I would like to build my own "home made" preamp for my mics and battery box. I really don't know if this is a good idea, so I'm referring to you.

Since in my country, Spain, there is no taper culture just like in the USA, we can't get phantom powered mics (because they're not as stealthier as condenser mics just like the core sounds or the ATXXX from Soundprofessionals), and Pre-amps, A/D's, etc...

My first thought was a pre-amp stage between the output of my battery box (SP-SPBS-1) and the line-in from my NJB3. Just because,

-Battery bax is powering my mics
-So, I could boost the output from my battery box
-So my levels in NJB3 would be higher, keeping my NJB3 at 0 db gain (because I prefer that, NJB3 gain is pure digital and I prefer to boost later, in adobe audition)

But I have no idea on where can I start...

So, any help? Would be very appreciated, and, if the project is succesfull, could be a very good help for tapers like me, who are obligated on keeping his gears and rigs as stealthier as possible.

Thanks!



there is a spanish engineer who manufactures high-end pro audio.

can't seems to remember his name, but he specializes in retro pultec designs and tube pre's


Offline muj

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Re: Building your own Preamp?
« Reply #6 on: August 05, 2005, 09:20:54 AM »

Offline macacopowa

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Re: Building your own Preamp?
« Reply #7 on: August 06, 2005, 06:14:40 AM »
I think that are you mistaken. lordbelial is from Barcelona, and this company is from Pays Basque... lordbelial how go this preamp DIY
PD: this eq and compressor are a jewel
respectable rig:
Neumann km184 > Hi Ho Silver Clad Cables thegreatgumbino style> SD722

stealth way
CMC-8>3wire bb>R1/ ihp120





recordings on LMAhttp://www.archive.org/bookmarks/danimacaco

http://myspace.com/musickapes       http://db.etree.org/macacopowa

Offline Chanher

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Re: Building your own Preamp?
« Reply #8 on: August 07, 2005, 04:11:39 AM »
off-topic but do any of you know any Spanish translations for some of the audio lingo we use? I've been dying to know some....
Line Audio CM4 / AT853Rx (c,h) / Studio Projects C4 MKII (c,h,o)
Sound Devices MP-2 / bm2p+ Edirol UA-5
Zoom F3 / F6 / Marantz Oade Warm Mod PMD661 / Tascam DR-70D

Offline lordbelial

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Re: Building your own Preamp?
« Reply #9 on: August 16, 2005, 08:27:43 AM »
I think that are you mistaken. lordbelial is from Barcelona, and this company is from Pays Basque... lordbelial how go this preamp DIY
PD: this eq and compressor are a jewel


Hi! I'm just starting this week, as I'm on holidays 'til 29th August.

(quiero decir, lo voy a comenzar esta semana, ya que he cogido las vacaciones hasta el 29 de Agosto).

I'll let you all know of the results.

Best Regards
Actual Gear:

stealth  - AT943 (c,o,sc,h) > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Ultrastealth  - DPA 4061 > ST-9100 > Edirol R09HR/I-River IHP-116(CFMod)
Open - BSC1-K1/K2/K3/K4 > Segue Dogstars > Marantz PMD671 busman t-mod

Playback: PC > M-Audio Fast Track Pro > KRK RP6 actives

My shows on the archive: http://www.archive.org/bookmarks/tapemaniac
Member of  Busman Audio team

Roving Sign

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Re: Building your own Preamp?
« Reply #10 on: August 16, 2005, 08:49:12 AM »
Quote
Since in my country, Spain, there is no taper culture just like in the USA, we can't get phantom powered mics...

Ha - pretty sure we arent THAT powerful... ;)

Good luck with the project...


Offline atticus

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Re: Building your own Preamp?
« Reply #11 on: August 24, 2005, 05:32:06 PM »
There are some fairly easy DIY projects out there. Both Forssell Technologies and Audio Upgrades make small preamp cards that can be put together fairly easily. The Forssell is a discrete design, and the Audio Upgrade module is a combination of discrete transistor and high speed monolithic op amps. Good luck and if you have any more questions I'll see what resources I can dig up for you.

www.audioupgrades.com

www.forsselltech.com
David Seymour
Mytek Digital
330-354-1576

ac

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Re: Building your own Preamp?
« Reply #12 on: August 25, 2005, 07:10:16 PM »
This is one I have thats home built. May help you out. Made from a Altoid type can.

 

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