Warm Audio WA-CX24 Stereo Large-Diaphragm Tube Condenser Microphone

Warm Audio WA-CX24 Stereo Large-Diaphragm Tube Condenser Microphone

The Warm Audio WA-CX24 is a stereo large-diaphragm tube condenser microphone built around two independently configurable CK12-style capsules in a single microphone body. Nine polar patterns per capsule, 180-degree upper-capsule rotation, a 12AY7 vacuum tube, and dual T14 output transformers support XY, Blumlein, mid-side, and custom coincident stereo recording techniques.

Designed for professional studios, project rooms, and engineers seeking single-point stereo capture, the WA-CX24 handles drum overheads, room ambience, piano, acoustic guitar, orchestral sections, horns, and vocals. Independent pattern selection lets each capsule use cardioid, omnidirectional, figure-8, or one of six intermediate settings, allowing engineers to adjust direct sound, ambience, stereo width, and rejection without positioning two separate microphone bodies.

Each custom edge-terminated capsule uses a dual-backplate, all-brass construction with a 24k gold-sputtered 6-micron PET diaphragm. The transformer-balanced tube circuit incorporates two USA-made T14 TAB-Funkenwerk output transformers plus polystyrene and Wima film capacitors. A dedicated external power supply, 16.4' Gotham GAC-9 cable, shockmount, wood box, and tweed flight case complete the recording system.

Key Features

• Single-Point Stereo Capture: Houses two large-diaphragm condenser capsules in one microphone for coincident stereo recording from a common physical position.
• 180-Degree Capsule Rotation: Rotates the upper capsule independently to configure XY, Blumlein, mid-side, and custom stereo pickup angles.
• 9 Patterns Per Capsule: Selects cardioid, omnidirectional, figure-8, or six intermediate responses independently for each capsule.
• Dual CK12-Style Capsules: Uses custom edge-terminated, dual-backplate, all-brass capsules with 24k gold-sputtered diaphragms.
• 12AY7 Tube Circuit: Incorporates a premium vacuum tube with polystyrene and Wima film capacitors in the microphone electronics.
• Dual USA-Made Transformers: Uses two custom T14 TAB-Funkenwerk output transformers for the microphone's stereo signal paths.
• 149 dB Maximum SPL: Accommodates high-level sources while retaining the flexibility needed for room, instrument, and vocal recording.
• Complete Studio Package: Includes the dedicated power supply, shockmount, Gotham 9-pin cable, wood storage box, IEC cord, and tweed flight case.

Flexible Stereo Recording Techniques

The upper capsule rotates through 180 degrees while both capsules provide independently selectable polar patterns. Engineers can configure coincident XY, crossed figure-8 Blumlein, mid-side, or custom combinations without spacing two independent microphone bodies. Different patterns can also be mixed to balance focused source pickup with additional room ambience.

Dual CK12-Style Large-Diaphragm Capsules

Both custom capsules use edge-terminated, dual-backplate construction with machined solid-brass components. Warm Audio specifies a 24k gold-sputtered, 6-micron PET diaphragm for each capsule. This dual-capsule architecture provides the two independently controlled pickup sections required for the microphone's adjustable stereo operation.

Tube and Transformer-Balanced Signal Path

A premium 12AY7 vacuum tube operates alongside two custom T14 TAB-Funkenwerk USA output transformers. Premium polystyrene and Wima film capacitors complete key portions of the signal path, while the dedicated external power supply handles power delivery and independent polar-pattern selection for both capsules.

Technical Specifications

• Brand: Warm Audio
• Model: WA-CX24
• Product Type: Stereo Large-Diaphragm Tube Condenser Microphone
• Operation: Stereo
• Capsules: 2 custom edge-terminated, dual-backplate, all-brass CK12-style capsules
• Capsule Diaphragms: 24k gold-sputtered 6-micron PET film
• Capsule Rotation: Upper capsule rotates up to 180 degrees
• Polar Patterns: 9 per capsule
• Primary Polar Patterns: Cardioid, omnidirectional, figure-8
• Intermediate Polar Patterns: 6 additional settings per capsule
• Polar Pattern Control: Independent selection for each capsule from the external power supply
• Supported Stereo Techniques: XY, Blumlein, mid-side, custom coincident angles
• Vacuum Tube: 12AY7
• Output Transformers: 2 custom T14 TAB-Funkenwerk USA transformers
• Capacitors: Polystyrene and Wima film
• Frequency Response: 30 Hz to 20 kHz
• Maximum SPL: 149 dB
• Output Impedance: 200 ohms
• Signal-to-Noise Ratio: 73 dB
• EIN / Self-Noise: 22 dBA
• Microphone Connection: 9-pin male
• Microphone Cable: Gotham GAC-9 premium 9-pin tube microphone cable
• Microphone Cable Length: 16.4'
• Audio Outputs: 2 x 3-pin XLR male on power supply
• Power Source: External grounded IEC power supply
• Power Supply Voltage Selection: 115V / 230V
• Color: Nickel
• Microphone Dimensions: 14" long x 2" diameter
• Microphone Weight: 3 lb
• Total System Weight: 20.5 lb

What's In the Box

• Warm Audio WA-CX24 stereo microphone
• External power supply
• Shockmount
• 16.4' Gotham GAC-9 9-pin microphone cable
• IEC power cord
• Wood microphone box
• Tweed flight case