Avantone CK-40 Stereo Multi-Pattern FET Microphone

Main Features

• Large diaphragm stereo multi-pattern microphone
• Design allows use of all stereo recording techniques
• -10 dB pad and 80 Hz LF metal roll off toggle switches
• 1 x 2 splitter box included
• Comes in a wooden case
• Padded aluminium flightcase also included

The Avantone CK-40 is truly a gorgeous looking and sounding microphone. The design, character and performance is comparable to some of the world's finest Stereo FET Mics...but at a fraction of their cost!


The rugged CK-40 microphone body and capsule assembly are precision machined of brass. Aesthetically, it features an elegant Cabernet Wine-Red finish, accented with polished nickel trim and grill. The Discreet Class A Low-Noise FET circuitry will yield pleasing professional results comparable to much more expensive designs.

Any studio can proudly offer the stereo CK-40 as a group vocal mic, room mic, piano mic, or utility condenser due to its versatility. It exudes class visually as well as sonically.

Manufactured using the finest materials yielding a very solid feel, superb structural integrity and rugged reliability, the versatile Avantone CK-40 Stereo Class A FET microphone features twin large 35 mm centre-terminated pressure gradient transducers. Their close physical proximity places them in a tight vertical array to allow accurate stereo imaging without phase issues arising. The top capsule/grill assembly rotates up to 180 degrees relative to the lower capsule/grill assembly. This feature along with the multi-pattern independent selector choices allow for all stereo recording techniques to be utilised. (XY-Coincident / Blumlein, M-S)

The 2 sets of pad, pattern select & LF rolloff switches independently control the capsules. Front switches control the lower fixed grill/capsule while the rear switches control the upper rotating headgrill. The 3 patterns allow the CK-40 to be used in a variety of situations including M-S recording. The -10dB attenuation switch can be engaged when miking very high SPL sources to keep from overloading the electronics.

The 80Hz high-pass filter switch can be engaged to reduce rumble and to keep unwanted low frequencies from 'muddying up' the track. The CK-40 operates on standard 48 volt phantom power and includes a 5-Pin mic cable that plugs into the included 1x2 stereo splitter box. Two standard XLR mic cables are then all that is required to connect to a phantom powered mic preamp/console channel.

The included Custom Retro Shockmount is superb in allowing a precise positioning of the mic while inhibiting the transfer of unwanted vibrations up into the mic. This isolation allows for superior professional results.


Standard Included Items

Avantone CK-40 Stereo FET Microphone
Avantone Custom Retro Shockmount with Extra Elastic bands
1 x 2 Splitter Box (Stereo Breakout Box)
Elegant padded genuine wooden Mic box
30 ft 5-pin cable
Foam wind filter
Padded Aluminium storage / travel case
Owners Manual


Avantone CK-40 Specifications

Type: Stereo True Condenser Microphone
Polar Patterns: Cardioid, Omni, Figure-8 (x2)
Capsule(s): (2) Dual plate 35mm gold sputtered diaphragm / brass assembly
Frequency Response: 20-20,000 Hz +/- 3dB
Output Impedance: <=250 Ohms / transformer isolated
Maximum SPL: 147 dB (0.5% THD @1000Hz)
Equivalent noise level: 17dB (A weighted EC651)
S/N Ratio: 77dB re 1Pa
Sensitivity: -40dB
Output Connector: Male XLR 5 pin with included breakout box and cable
Included Accessories: Wood Box, Shockmount, Foam Filter< 2x1 splitter box, 30' Cable, Metal road case
High-Pass Switch: 80 Hz 6dB/octave
Attenuation Switch: -10dB
Power Requirements: Standard 48 Volt Phantom (x2) 3mA current consumption
Finish: Polished Nickel trim / Metallic Cabernet Red Body
Weight: .95 kgs / 2.1 lbs
Dimensions: 27.6 X 49 mm