CU-31 & CU-32
SMALL
HI-RES HI-INPUT
CLARITY

CU-31 and CU-32
High Input SPL
High Transient Response
Compact Condenser Mics

Small, high-resolution condenser microphones designed for music recording. The CU-31 and CU-32 capture sound beautifully, from quiet nuanced performances to loud bombastic explosions.

A high transient response allows for the superb broadcast or recording of percussion, cymbal sounds and woodwind instruments.

They also feature 6dB higher sensitivity than conventional microphones. As a result, they are suited for cleanly capturing such explosive, high pressure sound sources as trumpets and drums, particularly in tight spaces.

CU-31 Maximum sensitivity: On-Axis
CU-32 Maximum sensitivity: Side-Firing

Only 4.75″ (120.5mm) Long

Sanken Chromatic CU-31 & CU-32

“The clarity and musicality of the 100k’s gave Joe Kraemer’s score great transparency, which allowed the music to emotionally enhance the film to its fullest.”

Bruce Botnick recorded the orchestral score of Tom Cruise’s “Jack Reacher” with five Sanken CO-100K microphones

“The CO-100K mics are the perfect match for the DSD formats in which I record, which is sampled at rates up to 11.2 MHz, and has frequency response out beyond 100K.”

GRAMMY©-winner, Michael Bishop, recording the “Cancer Blows” benefit concert.

“Godzilla’s original roar in 1954 was created using a double bass and a leather glove. Using the Sanken 100K mic, we recorded the friction of a glove going across the strings to reproduce that iconic Godzilla roar”

Erik Aadahl with the e2 sound design team at Warner Bros Studios

“My main orchestral sound came from 6 Sanken CO-100Ks, an LCR tree above the conductor, and 3 rear. These mics have a phenomenal response and a texture in the top that captures that high air in a warm way.”

Grammy Award-winning Frank Filipetti recording LA Philharmonic

“We loved the sound of acoustic guitar with the CU-55, and because they are small and side-address, they work very favorably when getting them into tight spots.”

Rob Jaczko, Chair of the Music Production and Engineering Department at Boston’s Berklee College of Music.

“I’ve been messing around with the CU-55 for about a year and just fell in love with it. I’ve used it on a lot of different instruments, the mic is fairly crisp, but not unnaturally so.”

Grammy Award-winning producer/engineer Chuck Ainlay recording JD & The Straight Shot.

“The CU-55s are small and unobtrusive, but they have a wonderful low frequency response while still providing super quick transients. You get a lot of air without harshness, and a really nice deep low end.”

Grammy Award-winning Frank Filipetti recording LA Philharmonic

“The CUW-180s perform wonderfully anywhere and everywhere, I use them as a pair over the stage for ambience. Eight feet up or so, at the lip of the stage angled at 45 degrees. I also use them for ensemble sections, as a section mic it is fabulous.”

Grammy and Emmy Award-winner Rob Macomber, Chief Engineer of the Music Studios at Jazz at Lincoln Center

Two Compact Mics Delivering a Natural, Uncolored Sound

Wide number of applications for various kinds of musical instruments

The Sanken CU-31 and CU-32 are small, lightweight microphones for all recording applications. Delivering a natural, uncolored sound, they feature Sanken’s original Push-Pull type capsule design, which gives them increased sensitivity.

In addition to their high maximum SPL of 148dB at 1%THD, they offer a very flat frequency response ( 20Hz to 18,000Hz ).

Unique to Sanken microphones, these mics come with a light, strong, corrosion-free one-micron titanium diaphragm, therefore ensuring the mic is immune to changes in temperature and humidity. And you can choose from the on-axis CU-31 or the CU-32 with a side-firing pattern.

Consequently these are very practical and proven microphones. The CU-31 and CU-32 are especially renowned for their quality and for their reliability.

  • Compact, High-Resolution, Hi-Input
  • 6dB higher sensitivity than conventional microphones
  • Two Mics for On-Axis or Side-Firing Patterns
  • Titanium diaphragm immune to humidity and temperature fluctuation
  • Smooth cardioid polar pattern
  • Transparent and distortion-free
  • Totally flat frequency response
Sanken Chromatic CU-41

CU-31 & CU-32 APPLICATIONS

ACOUSTIC GUITAR

BACKGROUND OR CHORUS VOCALS

BRASS AND WOODWIND

DRUMS CLOSE MIC

ELECTRIC/BASS/GUITAR AMPS

ORCHESTRA SOLO

OVERHEADS

PERCUSSION

PIANO

SOUND DESIGN EFFECTS AND ATMOS

STRINGS

  • Acoustic Guitar
  • Background or Chorus Vocals
  • Brass and Woodwind
  • Drums Close Mic
  • Electric/Bass Guitar Amps
  • Orchestra Solo
  • Overheads
  • Percussion
  • Piano
  • Sound Design, Effects and ATMOS
  • Strings

SPECIFICATIONS

 

Model Name

CU-31 & CU-32

Transducer

DC biased condenser

Directivity

Cardioid

Frequency response

20Hz – 18kHz

Sensitivity

3.5mV/Pa(-49dB, 0dB=1V/Pa)

Equivalent noise level (IEC)

19dB-A

Max SPL(1% THD)

148dB SPL

Output impedance( 1kHz )

200 ohms

Powering

+48V±4V phantom

Current consumption

Less than 1.4mA

Weight

125g / 4.4oz

Dimensions

CU-31: 116mm x 20.6mm (D)
4.6in x 0.8in (D)

CU-32: 121mm x 20.6mm (D)
4.8in x 0.8in (D)

Surface finish

Satin nickel

Connector

XLR-3-12C(M) equivalent
1: GND, 2: Hot, 3: Cold

CU-31 and CU-32 Dimensions
POLAR PATTERN
CU-31 Polar Response
CU-32 Polar Response
FREQUENCY RESPONSE
CU-31 Frequency Response
CU-32 Frequency Response

ACCESSORIES

CU-31 & CU-32 Included Accessories:
H-21F Microphone Holder
Vinyl Case

CU-431 & CU-32 Optional Accessories: