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Warm Audio WA-47 Tube Condenser Microphone

WA-47 Tube Condenser Microphone with 20Hz-20kHz Frequency Response.


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Discounted Price $899.00
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The WA-47 is designed for pro studio, home studio, live, and broadcast applications and sounds great on vocals, acoustic/electric guitars, acoustic/electric bass, drums, piano, strings, brass/woodwind instruments, and an array of other sources. The classic '47 became extremely popular in the 1960's and is now considered one of the greatest microphones ever made. The classic '47 is still widely used today in professional recording studios but have become extremely rare and expensive to acquire.

True '47 style capsule
The WA-47 utilizes a custom reproduction of the vintage k47 style capsule that was used in the classic '47 microphone - designed with the same hole pattern and frequency response. Every Warm Audio capsule is made in the same small assembly house in a clean-room environment, and packaged in its own protective jewel case until the moment it is loaded into the microphone. Each capsule is visually inspected and electrically tested for imperfections.

The Capsule
The WA-47 utilizes a custom reproduction of the vintage k47 style capsule that was used in the classic '47 microphone - designed with the same hole pattern and frequency response. Warm's version of this capsule (model# WA-47-B-80v) is carefully manufactured by an Australian capsule manufacturer whose precision and repeatability allows Warm to nail the vintage sonics of the most important sonic piece of this classic style of microphone.

The Tube
A Slovak Republic JJ 5751 vacuum tube is a lower gain, low noise tube that forces much of the sonics of the capsule and transformer to be heard more significantly than some higher gain tubes might allow. Warm auditioned 4 different tube brands and fell in love with the JJ 5751. The frequency response of the JJ 5751 and the way it contributes to the circuit is tonally smooth and vintage in nature.

The Transformer
The WA-47 utilizes an American made TAB-Funkenwerk (AMI) USA transformer with large core imported German laminations. This transformer helps provide the creamy smooth top end, and the LARGER THAN LIFE bottom end one would expect from a '47 style condenser microphone.

The Cable
One component of a tube microphone often overlooked is the 7-pin cable that connects the microphone to its power supply. When auditioning the WA-47 and other tube microphones we learned quite a bit about 7 pin cables and how the shielding and wire gauge size can drastically change the sonics of a tube microphone. Warm has e partnered with Gotham Audio in Switzerland to use their very carefully built top-end 7 pin GAC-7 cable. Using this cable increases top end presence and the overall size of the recorded image in the stereo field, by reducing phase shift and the parasitic effect often found in poorly built cables. Gotham Audio is very expensive and boutique in nature and should not be considered a small addition to the WA-47 package.

The Capacitors
The WA-47 uses a polystyrene coupling capacitor for uncompressed top-end response from the capsule, wima film capacitors throughout, and an imported Solen French capacitor on its output driving the TAB-Funkenwerk (AMI) USA output transformer.


  • Custom true '47 capsule reproduction (k47 style) - Model# WA-47-B-80v
  • Capsule makeup: Gold sputtered, dual large diaphragm, single backplate, 6 microns NOS mylar (PET film)
  • TAB-Funkenwerk (AMI) USA output transformer
  • JJ Slovak 5751 vacuum tube
  • Gotham 5-meter GAC-7, 7-pin tube microphone cable
  • Wima, Solen French, and Polystyrene capacitors
  • Polar Patterns: 9 patterns - Cardioid, Omni, figure-of-eight + 6 mixed patterns
  • Includes: Microphone, Wood Box, Power Supply Unit, Shockmount, Gotham 7 Pin GAC-7 Cable, IEC Power Cable

Get your Warm Audio WA-47 Tube Microphone today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Tube Condenser Microphone
  • Wood Box
  • Power Supply Unit
  • Shockmount
  • Gotham 7 Pin GAC-7 Cable
  • IEC Power Cable

The logical next step


You have that one microphone. You know the one. The USB mic that you've recorded every session with for the past eight years. The "streaming mic" that every YouTuber and "Bedroom Build" tutorial has told you to buy. The trusty *insert brand name here* microphone that wasn't explicitly bad, but wasn't exactly a pleasure to mix either. But then you get some money and some real clients. Do you really want them recording into your Purple Bigfoot from 2011? Of course not. So you watch every shootout on the internet- give everything a listen. Now you're suffering from information overload because you can't decide whether or not the old guys on Gear[site] have gone crazy or are really speaking from experience. Is it an "old man yells at cloud" situation, or do you really need to purchase that vintage $12,000 mic to get the sound you want? How on earth can you determine what mic you're going to need for future sessions? Enter the WA-47. It's one of the options that'll provide you with exactly what you need. Is it an exact clone of any of the 47-based architectures I've used in the past? Not by any means, but for the price-point listed here, you're not going to find a better, cleaner built, and well-rounded tube microphone. Boasting clean highs and a robust low end, this microphone will capture any session singer's voice with a caress and ease that don't belong to any FET mic sub $500.00. It has the tube characteristic that gives you the warmth you want, while also being malleable to EQ and Compression. It's killer on Pop Vocals, Rap Vocals, Jazz Vocals- this mic can go through the ringer and will power through any session. For those suffering with a beginner mic, who want a device that'll bring them closer to professional sounding recordings, this is a great step forward.



A product that goes beyond expectations.


This mic is amazing! The quality build is not just "good for the price" but rather it's amazing period. I've been using it for vocals and acoustic guitar. It's crazy the top quality you get at a reachable prize. I just wish a second XLR cable could be provided for the output.



my new baby lol


this definitly was a great purchase



Wonderful microphone 👍🏻


Great purchase!!!



Excellent mic at a great price


This mic is great for male and female vocals. Shock mount seems a little weak as others have said but it gets the job done. Loving it so far


Augusta, Ga


Best of the Best


I use this mic for male and female vocals for a smooth silky sound !! Man alive !!



Best mic for $


Just incredible value



Totally would recommend


Mic sounds great. It seems to be made well with very good parts.



Budget tube sound!


First high end mic I've purchased. I'm happy with the sound. Shock mount doesn't support the weight of the mic well though...



I love this mic


I have used the real thing in studios, and really wanted a Telefunken U47. For a fraction of the price this mic is amazing! If you have a project studio and/or doing session work from your home studio, this mic is definitely a must have can do everything mic.



WA-47 Tube Condenser Microphone

4.8 10


Microphone Type Tube
Polar Pattern Multi-Pattern
Frequency Response 20Hz-20kHz
Self Noise 11dB
Output Impedence 200 ohms
Dynamic Range (SPL) 140dB
Pad No
Low Cut Filter No
Capsule Material Gold Sputtered
Body Color Silver
Power Requirements Power Supply Included
Weight 9 lbs
Dimensions 2.36 x 10 (Dia x Length)
Series WA Series
Model WA-47
Information not available

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