Audio professionals looking for that classic Neve sound will appreciate the Kahayan 12K72, a dual-channel microphone preamplifier that's inspired by the Neve 1272 mic preamp.

The unit provides two mic/line preamps working in pure Class-A topology. Discrete components (no IC) are used throughout including Carnhill Transformers. The 12K72 offers a clear and transparent sound with deep bass and natural treble.

Inspired by the Neve 1272 Mic Preamp    Mic, Line, and Instrument Inputs    Clear and Transparent Sound    Deep Bass and Natural Treble    1/4" DI Input for Instruments    Custom Carnhill Transformers    Phantom Power and Polarity Switches    Mic/Line Switch    Unbalanced Pretransformer Output

• Mic/line independent preamps working in pure Class A
• Using discrete technology (without IC's) with Carnhill Transformers
• Gain control in steps of 5 dB
• Output level control in steps of 1 dB
• Phantom power 48V with pilot light
• Phase reverse switch
• Microphone/line switch (also useful in line mode for mastering or mixbus processor)
• Inputs and outputs: balanced and unbalanced (XLR and jack)
• External high-quality power supply
• Front input jack for connecting high impedance electric instruments (guitar, bass, synth, etc.)

• The 12K72 is formed by two stages. The first gain stage is set with a Gain control, while the second stage remains fixed.
• The Output control regulates the amount of signal passing from the first stage to the second stage (as a typical fader function).

Related Questions and Answers

Q: 1. can this unit only be powered by the internal battery?

A: The Saramonic SR-PAX1 Two-Channel Audio Mixer, Preamp, Microphone Adapter is powered by a 9V battery. It does not have an internal rechargeable battery.

Q: 2. Plan on using this product with my Rode NTG2 and dr-40. which version do i buy?

A: I do all of my low end noise removal with SoundSoap or Izotope RX5. I would go with the version without the high pass filter. If you are using a ribbon mic that requires you to use a lot of gain, then the version with the high pass filter would probably serve you well.

Q: 3. Will the Sony ECM-44B - Omnidirectional Lavalier Microphone work with the FetHead Phantom?

A: Sorry, I just don't know.

Q: 4. Is this the correct Fethead for the Deity S-Mic 2S? Or should I be getting the regular Fethead? (The S-Mic 2S is a phantom powered mic, but even still this isn't clear).

A: This is the correct model.

Q: 5. Will this lower noise with a Zoom H6 and NTG4 Plus?

A: If the noise you are experiencing is from having to turn up the gain on the mic pre amp of the Zoom H6, then this would help, by providing a dB boost. But you should not have to turn up the gain too much with a condenser mic such as the NTG4 Plus. If this is not the cause of the noise, then you may want to upgrade to a recorder with higher quality mic pre amp's, such as the Sound Devices MixPre-6 II 6-Channel / 8-Track Multitrack 32-Bit Field Recorder, BH #SOMIXPRE6II.

Q: 6. Works whit beta 87?

A: This would work with a Shure Beta87a.

Q: 7. Can this be used with an unbalanced stereo mic? Considering purchasing this to shield my AT2022 from phantom power but that mic outputs stereo on XLR.

A: sorry can't help with that one - i don't have a stereo mic so wouldn't know. fethead works great with my ribbon & SM7 though. try manufacturers (Triton Audio). good luck!

Q: 8. What does this run on? Does it require batteries? Since it supplies you with Phantom Power, do you need to put in any batteries or where does it get the power from? How long will this last or its 24/7?

A: It passes through phantom power from the host device. it does not provide phantom power by itself. There is no power supply. This is an an in-line device.

Q: 9. Hello,According to Sure all of their dynamic microphones are unaffected and will not cause damage or cause poor performance if phantom power is used. Also other sources state if a dynamic mic is newer and or balanced it can be used with phantom power. I have both dynamic (Sure) and condenser mics. Will a dynamic mic damage the Fethead Phantom or will it cause poor audio performance while used with dynamic mics? Thank you and have a great day,McCoy

A: As you know the Fethead Phantom passes phantom power through to the microphone after it uses a portion of it for its own operation. I oubt that a dynamic microphone will damage the Fethead Phantom. However, the impedance of the Fethead Phantom I believe is different than the standard Fethead as it was designed for low impedance condenser mics. The regular Fethead has an impedance of 22K ohm whereas the Phantom version is lower (I believe around 1K). So if you are using a high impedance dynamic mic with the Fethead Phantom the audio performance may be affected. However, a competitor of the Fethead, the Cloudlifter is around 3K, considerably lower than the regular Fethead. I purchased the Phantom version for use with condenser mic and have a different product for my dynamic mics. But I would not be concerned to try Fethead Phantom with my dynamic mics. One issue I had with the Phantom (a few others have reported it as well) is that with one of my condenser mics (none of the others) it was picking up signals from a local radio station. I spent a considerable amount of time trying to discover why this was happening as normally that was not an issue with that mic. I ended up adding a Sescom inline RF filter (SES-Inline-EMCM) at the end of the XLR cable before it goes into the mixer. This worked very well and eliminated all the RF signal. And in fact I found I could attach the Fethead Phantom to the Sescom adapter without any issues. Normally Triton recommends that the Fethead is attached directly to the mic connector. I hope the above helps.

Q: 10. How is this with omni-directional mics? Primarily for field recording in nature. Löm Usï Pro pair into a sound devices 552. Less than 10 ft. Cable.

A: This would work well. It provides 18 dB of gain to condenser mics, and the polar pattern really does not come in to play, but you're mic will seem a lot hotter.