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Author Topic: My Naiant littlekit INA111 Kit preamp project  (Read 15361 times)

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Offline Chuck

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #15 on: June 24, 2009, 09:08:04 AM »
Cool, and no CNC work necessary what so ever.  It looks to me like there's no way to charge those batt's while in the box, correct?  Looks like you're having fun...

I haven't figured out how to charge the five 9v NiMH batteries while they are in the box.

While it's almost the size of the box w/ 15 cells; if you went to LiFePo4 3.2v cells at around $5 a cell, you could provide 48v at 1200mah instead of the 160mah ones your using and be festivus-maximus without a recharge...  ;D Actually, building a double-decker box with a standard connector between compartments (say deans) inside would allow you to easily swap batteries/packs without opening the amp section. Just a thought, not sure how practical it would be.

Yeah, for me having to recharge the batteries externally isn't a big deal. I don't do festivals anymore. I rarely do more than a couple of shows per month anymore.   I like having the batteries inside the case, because it's one less box and one less connection I have to worry about. I had thought of external 48v battery pack option. That's where I would be able to use an external DC input jack.
« Last Edit: June 24, 2009, 09:17:46 AM by Chuck »
Reality is merely an illusion, albeit a very persistent one.

Microphones: Microtech Gefell M300, AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements, CAD GXL1200 (cardioid and mod-cardioid capsule & electronics mod), Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, Tascam DR-680, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com

Offline page

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #16 on: June 24, 2009, 11:06:10 AM »
Yeah, for me having to recharge the batteries externally isn't a big deal. I don't do festivals anymore. I rarely do more than a couple of shows per month anymore.   I like having the batteries inside the case, because it's one less box and one less connection I have to worry about. I had thought of external 48v battery pack option. That's where I would be able to use an external DC input jack.

Probably cleaner, interesting idea though.  :P

Looks like a neat box.
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Offline GDfan

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #17 on: July 03, 2009, 10:56:08 AM »
Looks fantastic. I want to hear samples. :)
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Offline manitouman

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #18 on: July 04, 2009, 12:20:16 AM »
Nice work Chuck! Gold colored...have you named it yet? C3-PO? From the Colorado Crue thread it seems as if Jimna has been huffing your left over paint  ;D

Can't wait to hear some pulls.
Mics: AKG CK31, CK32>LM 3> MPA III


Offline Ben Turnbull

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #19 on: July 05, 2009, 01:34:45 PM »
<snip>

I started getting interested in these amps after reading this:
http://www.audiomasterclass.com/arc.cfm?a=giant-killing-$5-mic-preamp-its-secrets-revealed

An electronics hobbiest can build one of these pre-amps fairly cheap. Again, read the $5 mic Preamp article.

</snip>

 :o  Wish he'd had some music samples.  Voice is rather narrow in Hz range but for what it's worth, $5 is all it seems you have to spend.
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Offline Ben Turnbull

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #20 on: July 05, 2009, 03:12:24 PM »
^ ahhh, yup.   ;D
Not seeing any shows now (thanks Covid)... None at The Fine Line.
Read "Toward the End of Time" by Updike to know my name sake.
I'm a Mask-debator, at least till I get glasses. GOHCQC 2 + 2 = 4
Official Archivist (on hold) for Jazz Central Studios, MinniMN
DPA4021/SKM140/NakCM1k/AT4051a/ADK A51s/Countryman B3/ATes943/SPc4(och)/S'lux s502... >
TinyBox OT> PCM-M10/DR-680/R4/T+mod UA5 needs attention

Offline Roger Gustavsson

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #21 on: July 06, 2009, 05:14:45 AM »
That $5 preamp will need some more components to work safely. More like my schematic presented earlier:




Maybe some protecting diods have to be added? I was not going for phantom power at all. The battery supply was intended to be +/-7.4 V. I think that would allow for an output of 5V (about 2V less than the supply rails). My gear needs 2.5V for 0dBFS. Noise is not a problem with the INA217 as long as the gain is above 20dB. I use 25-40dB most of the time. The mic preamp was intended to sit just 5-10 cm away from the balanced input of the soundcard. No need for capacitors in series of the output as there are some at the input of the soundcard.


Roger

Offline Chuck

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #22 on: August 02, 2009, 01:58:18 PM »
Reality is merely an illusion, albeit a very persistent one.

Microphones: Microtech Gefell M300, AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements, CAD GXL1200 (cardioid and mod-cardioid capsule & electronics mod), Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, Tascam DR-680, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com

Offline Chuck

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #23 on: August 04, 2009, 05:53:14 PM »
My Phish 08-01-2009 - C-481 > littlekit source:

http://taperssection.com/index.php/topic,125313.new.html#new
Reality is merely an illusion, albeit a very persistent one.

Microphones: Microtech Gefell M300, AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements, CAD GXL1200 (cardioid and mod-cardioid capsule & electronics mod), Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, Tascam DR-680, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com

Offline Chuck

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #24 on: August 14, 2009, 02:56:32 PM »
Electric bluegrass recorded with AKG C-462 (A/B) > Naiant littlekit (INA111) > iHP-120

http://taperssection.com/index.php/topic,125707.0.html

No bass roll-off, EQ or compression was used.
Reality is merely an illusion, albeit a very persistent one.

Microphones: Microtech Gefell M300, AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements, CAD GXL1200 (cardioid and mod-cardioid capsule & electronics mod), Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, Tascam DR-680, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com

Offline Jammin72

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #25 on: August 14, 2009, 10:28:15 PM »
Perhaps a fixed gain doesn't have commercial appeal but it does indeed work in niche markets.  Please see the venerable fixed gain Oade M148 for example.  ;)
Yes, but what do you HEAR?

Offline Chuck

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Re: My Naiant littlebox INA111 Kit preamp project
« Reply #26 on: August 14, 2009, 10:38:09 PM »
My Naiant pre-amp doesn't have fixed gain.
See the photo below. My kit pre-amp is in the middle with the two knobs and red LED.

None of the Naiant littleboxes are fixed gain... as far as I know.

I have to say that I am very happy with mine, so far.



« Last Edit: August 14, 2009, 11:00:07 PM by Chuck »
Reality is merely an illusion, albeit a very persistent one.

Microphones: Microtech Gefell M300, AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements, CAD GXL1200 (cardioid and mod-cardioid capsule & electronics mod), Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, Tascam DR-680, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com

Offline Chuck

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Re: My Naiant littlekit INA111 Kit preamp project
« Reply #27 on: September 03, 2009, 02:13:38 PM »
Cracker - AKG C-461 (DIN) > Naiant littlekit (INA111) > iHP-140

http://bt.cotapers.org/torrents.php?id=163&torrentid=210
Reality is merely an illusion, albeit a very persistent one.

Microphones: Microtech Gefell M300, AKG C 480 B comb-ULS/ CK 61/ CK 63, Sennheiser MKE 2 elements, CAD GXL1200 (cardioid and mod-cardioid capsule & electronics mod), Audix M1290-o, Micro capsule active cables w/ Naiant PFA's, Naiant MSH-1O, Naiant AKG Active cables, Church CA-11 (cardioid), (1) Nady SCM-1000 (mod)
Pre-amps: Naiant littlebox, Naiant littlekit v2.0, BM2p+ Edirol UA-5, Church STC-9000
Recorders: Sound Devices MixPre-6, Tascam DR-680, iRiver iHP-120 (Rockboxed & RTC mod)

Recordings on the LMA: http://www.archive.org/bookmarks/ChuckM
Recording website & blog: http://www.timebetweenthenotes.com

 

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