Electro-Harmonix 12AY7 Tube Microphone Preamp 889406625891

Item #: 
181127007000008
  • Write a Review

Equipped with a 12AY7 EH tube and a 12AU7 EH driver, the Electro-Harmonix Tube Microphone Preamp gives microphones the widest dynamic range with the warmest possible tone and accuracy. 200V supply del... Click To Read More About This Product

We're sorry—we no longer carry this item.

Find a similar product below or contact us for a recommendation of a great alternative.

Call: 866-498-7882 Email or Chat

Recommended Products
Overview

Equipped with a 12AY7 EH tube and a 12AU7 EH driver, the Electro-Harmonix Tube Microphone Preamp gives microphones the widest dynamic range with the warmest possible tone and accuracy. 200V supply delivers up to 50dB gain. Special FET current-balancing circuit eliminates noise and hum. Extra TRS output can be used as a splitter or an aux send for monitoring. Balanced XLR I/O and 1/4" TRS balanced buffer out, phase reverse switch, +4dBm indicator light for setting optimal mic levels, and 48V phantom power.

Features
  • Equipped with a 12AY7 EH tube and a 12AU7 EH driver
  • Wide dynamic range, warm tone, and superb accuracy
  • 200V supply delivers 50dBs of gain into high load, 40dB gain into 600 ohms
  • FET current-balancing mic preamp circuitry eliminates noise and hum
  • TRS output for separate line control (use as a splitter or for monitoring)
  • Balanced XLR in and out
  • 1/4" TRS balanced buffer out
  • Phase reverse switch
  • +4dBm indicator light for setting optimal mic level
Warranty
MANUFACTURER'S WARRANTY
One year warranty on pedals. 90 day warranty on all other products.


  • Customer Reviews
Loading....

Review Snapshot

by PowerReviews
Electro-Harmonix12AY7 Tube Microphone Preamp
 
3.9

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (2)

Most Liked Positive Review

 

My Acoustic guitars shine through this thing

I did much research before buying this preamp, This is my first preamp that is not a starved plate design. The thing just arrived so I plugged it in to my SM81 and grabbed...Read complete review

I did much research before buying this preamp, This is my first preamp that is not a starved plate design. The thing just arrived so I plugged it in to my SM81 and grabbed my taylor and started strumming some stuff. I had an acoustic test project saved that I was using to test acoustic guitars on my ART Tube MP and the difference is astounding. I was using a dual mic setup with the ART (SDC SM81 at 14th fret and a LDC AKG Perception 200 at ear level overlooking the guitar) and all I did the the EH was use a single SDC and just double the track and delay the second track by a couple MS. and WOW! single mic beats the dual mic setup by leaps and bounds with the EH!!!! Buy this if you record acoustics and you will not regret it!!!

VS

Most Liked Negative Review

 

HUMSSSSSSSSSSSSSSSSSSSSSSS when pluged Into an Unbalanced input

If this preamp plugs into anything unbalanced, it will HUM...like an unbalanced audio interface, rca inputs, a FMR RNC, RNLA, a DBX 163x compressor, anything with an unbalanced...Read complete review

If this preamp plugs into anything unbalanced, it will HUM...like an unbalanced audio interface, rca inputs, a FMR RNC, RNLA, a DBX 163x compressor, anything with an unbalanced input...it will hummmmm

If this preamp is pluged into anything balanced, it will not HUM and will sound clean and fantastic...

You will need a balanced audio interface, a Balanced PA, a Balanced compressor input for it to work without that dull HUMMMMMM

Once you use you a balanced compressor or whatever then after the compreoor can be unbalanced and no hum...

...with this design, it doesnt deserve anything above a 3 star review

Reviewed by 13 customers

Displaying reviews 1-10

Back to Top

Previous | Next »

(3 of 5 customers found this review helpful)

 
1.0

Wouldn't recommend

By Garry

from Las Vegas, NV

About Me Professional Musician

Pros

    Cons

    • Breaks Easily
    • Unreliable

    Best Uses

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      It was noisy (hiss) from the start. Had to use a gate for critical voice recording. Then it stopped working. Sent it in but they sent it back unfixed. Said I didn't know how to use it.

      (2 of 2 customers found this review helpful)

       
      5.0

      the bomb

      By Doc

      from Big D

      About Me Experienced

      Verified Buyer

      Pros

      • Adds warmth to vocals
      • Clear Sound
      • Versatile

      Cons

      • None

      Best Uses

      • Amateur Recording

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      use it for recording at home and also for performance. Definately "warms up" your vocals. hint.. be sure to remove cover a push tubles all the way in. At first I had a little noise, but after performing above, very clean..

      (2 of 2 customers found this review helpful)

       
      5.0

      Electro-Harmonix Mic Pre 12AY7 - I get no hum. Wtf, people?

      By Rewind

      from Undisclosed

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      GET NO HUM! Get a better transformer or use adapters that cleans your buildings dirty power grid. Tubes are sensitive equipment.
      I use the American transformer in Norway, together with a 110v to 230v 50W converter transformer (not expensive at all). Another thing, EH says that their transformer doesn't work in Germany because they only have 220V and not 230V.

      I think this little thing is awesome. But I like my GA Project Pre-73 better, because it has a more full sound. That is just a matter of taste, I guess. Trafo-sound vs tube. Its like compairing Nirvana vs Beatles.

      (0 of 1 customers found this review helpful)

       
      2.0

      HUMSSSSSSSSSSSSSSSSSSSSSSS when pluged Into an Unbalanced input

      By Jimsi

      from Undisclosed

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      If this preamp plugs into anything unbalanced, it will HUM...like an unbalanced audio interface, rca inputs, a FMR RNC, RNLA, a DBX 163x compressor, anything with an unbalanced input...it will hummmmm

      If this preamp is pluged into anything balanced, it will not HUM and will sound clean and fantastic...

      You will need a balanced audio interface, a Balanced PA, a Balanced compressor input for it to work without that dull HUMMMMMM

      Once you use you a balanced compressor or whatever then after the compreoor can be unbalanced and no hum...

      ...with this design, it doesnt deserve anything above a 3 star review

      (8 of 11 customers found this review helpful)

       
      5.0

      Unreal

      By Circle X Productions-EOd5n

      from Washington D.C.

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      I put this head-to-head against the UA Solo 610 and the Blue Robbie. The 12AY7 really shined. To be fair, I DID replace the 12AY7 and 12AU7 stock tubes with NOS 1966 GE JAN 12AY7's. The real magic came after stacking 4 acoustic guitars and 3 vocal tracks. The sound was really clean and thick. It was really more comparable to the GT SUPRE. The only thing this box does is sound great. Use a balanced I/O!!! For an even fatter sound, I used a EHX Black Finger on the vox and guitar tracks with NOS 12AX7's. I am now selling my LA-2A and UA S610. I used a Chameleon Labs TS-2 on all recordings.

      (1 of 4 customers found this review helpful)

       
      2.0

      Hiss issues

      By jaa

      from Washington DC

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      I bought one but it was noisy (hiss), so I exchanged it. Other reviewers had said it was quiet, so that is what I was expecting. Well, the second one was just the same! I gave up and got a refund. I tried this pre-amp with two different condenser mics, one dynamic mic, a DI, and also with a second pre-amp (different brand) in front. Couldn't get the sound I was looking for, without a lot of noise. That said, if you can ignore the noise, the sound character is pretty good. A 1/4" TRS input would be a good thing to have --only XLR in this model. Maybe a bad lot? Or, maybe it didn't like my board. Whatever, it didn't work for me.

      (0 of 5 customers found this review helpful)

       
      1.0

      Just too noisy

      By Mike Myles

      from Manchester, NH

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      Great idea, but way too much noise to be usable for either live or recording. Maybe mine was a lemon, but if so it doesn't speak well for EH's quality control. I tried it in my PA & multi track recorder - in both cases the noise level was extreme. I'm not talking background hum here, it had a loud buzz. Needless to say, I returned it.

      (7 of 7 customers found this review helpful)

       
      5.0

      My Acoustic guitars shine through this thing

      By Emberv3

      from Allentown, PA

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      I did much research before buying this preamp, This is my first preamp that is not a starved plate design. The thing just arrived so I plugged it in to my SM81 and grabbed my taylor and started strumming some stuff. I had an acoustic test project saved that I was using to test acoustic guitars on my ART Tube MP and the difference is astounding. I was using a dual mic setup with the ART (SDC SM81 at 14th fret and a LDC AKG Perception 200 at ear level overlooking the guitar) and all I did the the EH was use a single SDC and just double the track and delay the second track by a couple MS. and WOW! single mic beats the dual mic setup by leaps and bounds with the EH!!!! Buy this if you record acoustics and you will not regret it!!!

      (5 of 7 customers found this review helpful)

       
      5.0

      Build questionable but sound is amazing...

      By Anonymous

      from Undisclosed

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      I'm a long time studio owner and own some really nice mic pre's out there..Pre's like apogee's Trak2 & Ensemble as well as Focusrite's ISA428...I own Api luchbox preamps as well as pre's by osa / Purple audio...This EHX is THE Best pre I have when using on an acoustic guitar....PERIOD.....It does something to acoustic guitars that no other pre in my collection does...I cant pinpoint it but if you put it next to the other pre's it's not even close...And that's saying something...Only thing about this pre is that it doesnt have much gain...What I suggest is using an external compressor to use as extra gain for this pre...Also if you're going to run a guitar cable into this use a di! That way you're getting all the tube pre goodnes....Peace and buy this! It's a great "cheap" mic pre...Works really well as room mic pre's also....

      (5 of 5 customers found this review helpful)

       
      5.0

      Needs Balanced to Unbalanced Conversion

      By Anonymous

      from Undisclosed

      Comments about Electro-Harmonix 12AY7 Tube Microphone Preamp:

      This unit puts out a balanced signal from the XLR output. If you're using a consumer soundcard like I am, you'll need to convert the output signal to unbalanced. I had to buy a "Line Level Shifter" from EBtech to get rid of the loudish hum people talk about. I too thought the thing was defective. It's not. It just requires above listed conversion. Best preamp in its price range, if you're looking for a "vintage" tube tone. I use this thing on everything.

      Displaying reviews 1-10

      Back to Top

      Previous | Next »

      You are changing the Ship-To country.

      Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.