RECORDING October 2022 - 12

WARM AUDIO WA-47F
REVIEW
WA-CX12
REVIEW BY ALEX HAWLEY
The Warm Audio WA-CX12
is a tube condenser designed
Functionally the Warm includes the -10dB pad and 140 Hz low-cut filter found on the
original, this time via actual two-position dip switches versus recessed controls. Note the
WA-47F does not include the -6dB output pad located on the bottom of the Neumann.
Inside
The WA-47F uses a cardioid pattern, center terminated WA-47-B-50v capsule that
Warm denotes as a faithful reproduction of the single backplate K47 design. The
output transformer is a TAB-Funkenwerk (AMI) creation designed by the late Oliver
Archut, famous for his meticulous recreations and improvements of classic audio transformers.
Other internal components include Fairchild FETs (used in the Neumann reissue),
and polystyrene and premium WIMA capacitors. I took a peak inside and was
quite impressed the WA-47F uses an authentic multistage through-hole circuit board
design similar to vintage mic builds.
The specs of the WA-47F are quite similar to its inspiration; however, the WA-47F has
a 20 Hz-19 kHz frequency response compared to the classic's 40 Hz to 16 kHz range.
Frequency-wise, the WA-47F offers a smooth, evenly weighted gentle slope from
-8dB at 20 Hz up to 1.5 kHz, followed by an equally gentle rise that peaks at 2dB at
4 kHz, and rolls back to zero at 7 kHz, before a broad 1.5dB peak from 8 to 18 kHz.
In Use
The WA-47F has a very controlled proximity effect, and the off-axis rejection is tight
and tonally neutral.
The WA-47F loves to be placed a few inches off of a kick drum, on its own for a full
boomy sound. In conjunction with a dynamic in the hole or close to the batter head it
offers a blendable choice of modern punch and fullness. The mic will pick up bleed
from the cymbals and snare, but this helps contribute to a roomy drum tone with a
touch of vibe.
On bass cabinet, the 20 Hz extension helps add weight while the top end adds
a subtle hint of definition to the strings. It's similar on electric guitar, especially on
cleaner jazz, blues or country tones where a single guitar track needs to fill space. On
acoustic guitar, the WA-47F can be just what's required for prominent, thick controlled
acoustic guitar tones in a mix.
On vocals, this mic excels at bold, wooly crooner-style voices or aggressive singers
whose tones need some taming. If your tracks warrant a more modern in-your-face,
bright, open sound, there are better mic choices out there, including in the Warm line.
New Versus Old
Of course, the $4,500 question is how it compares to its inspired roots. I have several
modern U 47 fet equivalents on hand and an original reissue that I often borrow
whenever possible. The WA-47F compares impressively across the board, but there
are some differences.
The extended frequency range can be noticeable, and it's not quite as " cotton
mouthy " (a U 47 fet descriptive stolen from mic guru Klaus Heine) as the Neumann
offerings. However, this is more in single source comparison, and these differences
become less apparent when the element is in a full mix. I also don't mean to imply the
WA-47F is bright or muddy; rather, words like rich, bold and smooth come to mind.
Final FET Observations
Overall the WA-47F is everything it is designed to be. While not a 100% sonic
match to the original (by design), it holds its own everywhere the original would find
use and does it at less than a quarter of the cost. I have to say that this may be one of
the most impressive Warm microphone offerings to date.
12 RECORDING October 2022
after the legendary AKG C12--
one of the most universally
loved microphones in history. In
production from 1953 to 1963,
roughly only 2,500 were ever
produced. Vintage models in good
condition are borderline mythical,
reaching $20,000 on average.
The AKG C12 is beloved for its
balanced tone and iconically smooth
top end. At the heart of the original
design lies the CK12 capsule--one
of the best capsules ever made. Capturing
the C12 sound at an attainable
price point is no small feat.

RECORDING October 2022

Table of Contents for the Digital Edition of RECORDING October 2022

Fade In
Fast Forward
Warm Audio WA-47F & WA-CX12X
The Nostalgic, Futurist Piano Man: Daniel Lanois Player, Piano
Focusrite Clarett+ OctoPre
Session Log: Ribbon Microphones
ADK Microphones: Munich-7-T T-FET
Moog Music Mavis
Inside The Studio With Mark Hornsby: Cool Mics by Non-Mic Companies
Heiserman Audio H251
Plugin Outlet: sonible smart:comp 2
AEA TRP500
Inside The Box with Joe Albano: Virtual Preamps
Pearlman Microphones TM-12A
MasterWriter
Sequential Take 5
Mojave MA-D
TIERRA Audio New Twenties
RECORDING October 2022 - Intro
RECORDING October 2022 - Cover1
RECORDING October 2022 - Cover2
RECORDING October 2022 - 1
RECORDING October 2022 - 2
RECORDING October 2022 - 3
RECORDING October 2022 - Fade In
RECORDING October 2022 - 5
RECORDING October 2022 - 6
RECORDING October 2022 - 7
RECORDING October 2022 - Fast Forward
RECORDING October 2022 - 9
RECORDING October 2022 - Warm Audio WA-47F & WA-CX12X
RECORDING October 2022 - 11
RECORDING October 2022 - 12
RECORDING October 2022 - 13
RECORDING October 2022 - 14
RECORDING October 2022 - 15
RECORDING October 2022 - The Nostalgic, Futurist Piano Man: Daniel Lanois Player, Piano
RECORDING October 2022 - 17
RECORDING October 2022 - 18
RECORDING October 2022 - 19
RECORDING October 2022 - 20
RECORDING October 2022 - 21
RECORDING October 2022 - 22
RECORDING October 2022 - 23
RECORDING October 2022 - 24
RECORDING October 2022 - 25
RECORDING October 2022 - Focusrite Clarett+ OctoPre
RECORDING October 2022 - 27
RECORDING October 2022 - 28
RECORDING October 2022 - 29
RECORDING October 2022 - Session Log: Ribbon Microphones
RECORDING October 2022 - 31
RECORDING October 2022 - 32
RECORDING October 2022 - 33
RECORDING October 2022 - 34
RECORDING October 2022 - 35
RECORDING October 2022 - 36
RECORDING October 2022 - 37
RECORDING October 2022 - 38
RECORDING October 2022 - 39
RECORDING October 2022 - ADK Microphones: Munich-7-T T-FET
RECORDING October 2022 - 41
RECORDING October 2022 - Moog Music Mavis
RECORDING October 2022 - 43
RECORDING October 2022 - Inside The Studio With Mark Hornsby: Cool Mics by Non-Mic Companies
RECORDING October 2022 - 45
RECORDING October 2022 - 46
RECORDING October 2022 - 47
RECORDING October 2022 - Heiserman Audio H251
RECORDING October 2022 - 49
RECORDING October 2022 - Plugin Outlet: sonible smart:comp 2
RECORDING October 2022 - 51
RECORDING October 2022 - AEA TRP500
RECORDING October 2022 - 53
RECORDING October 2022 - Inside The Box with Joe Albano: Virtual Preamps
RECORDING October 2022 - 55
RECORDING October 2022 - 56
RECORDING October 2022 - 57
RECORDING October 2022 - Pearlman Microphones TM-12A
RECORDING October 2022 - 59
RECORDING October 2022 - MasterWriter
RECORDING October 2022 - 61
RECORDING October 2022 - Sequential Take 5
RECORDING October 2022 - 63
RECORDING October 2022 - Mojave MA-D
RECORDING October 2022 - 65
RECORDING October 2022 - 66
RECORDING October 2022 - 67
RECORDING October 2022 - 68
RECORDING October 2022 - 69
RECORDING October 2022 - 70
RECORDING October 2022 - 71
RECORDING October 2022 - TIERRA Audio New Twenties
RECORDING October 2022 - Cover3
RECORDING October 2022 - Cover4
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