KERWAX K-23R – Ribbon Microphone

OVERVIEW

The KERWAX K-23R is a boutique ribbon microphone designed for engineers and producers seeking warmth, depth, and natural detail in their recordings. Built around a 2.5-micron aluminum ribbon and neodymium magnets, it captures sources with low distortion, a smooth frequency response, and excellent transient handling.

Featuring a bi-directional figure-8 polar pattern, the K-23R excels in overheads, guitar cabinets, brass sections, and room miking, delivering a full-bodied sound that feels both vintage and refined. Handcrafted in France with meticulous attention to detail and locally sourced premium components, the K-23R combines heritage-inspired design with modern reliability for the discerning studio.

KEY HIGHLIGHTS

Warm, Natural Tone:

Classic ribbon character with smooth highs, rich mids, and a full low end.

Low Distortion & Fast Transients:

Accurately captures dynamics with excellent clarity and detail.

Versatile Studio Applications:

Ideal for overheads, electric guitars, brass, and room ambience.

Figure-8 Polar Pattern:

Provides focused front/back pickup with excellent side rejection.

Handcrafted Boutique Build:

Made in France using the finest materials and local craftsmanship.

FEATURES

• Warm, Natural Sound: Low distortion with smooth frequency response
• 2.5-Micron Ribbon: Delivers rich harmonic detail and fast transient response
• Figure-8 Polar Pattern: Captures front and back equally while rejecting sides
• Custom Transformer: Ensures optimal tone and output performance
• Handles High SPLs: Suitable for loud sources like guitar amps and brass
• Swivelmount Design: Simple and effective positioning for studio use
• Handcrafted Build: Stainless steel finish, designed and made in France
• No Phantom Power Required: Avoid +48V to protect the ribbon element

TECHNICAL SPECS

Acoustic Principle: Electrodynamic pressure gradient

Polar Pattern: Bi-directional Figure-8

Ribbon: 2.5-micron aluminum / 5,1 cm x 5 mm

Magnets: Neodymium

Transformer: Custom

Frequency Response: 30 -15,000 Hz +/- 3dB

Sensitivity: -46 dBv Re. 1v/pa

Output Impedance: 300 Ohms

Maximum SPL: >135dB

Output Connector: Male XLR 3 pin (Pin 2 Hot)

Finish: Stainless steel

Dimensions: 200 mm x 30 mm

Weight: 455 g