Warm Audio WA-44 Ribbon Microphone - Black, Stainless Steel, Figure-8, Passive, Custom CineMag Transformer

With a ribbon element just 2.5 microns thick and a custom CineMag USA transformer, the Warm Audio WA-44 recreates the legendary RCA 44BX sound with stunning accuracy. This passive ribbon microphone delivers the smooth, natural character that has defined classic recordings for decades.

Overview

The WA-44 is a hand-built ribbon microphone featuring a 50mm aluminum ribbon, solid brass body, and stainless steel grille. Its figure-8 polar pattern and 20Hz-20kHz frequency response make it ideal for studio vocals, strings, brass, drums, guitar amps, and broadcast. No phantom power is required—just plug into any high-quality preamp and capture rich, detailed audio.

What stands out

• Authentic recreation of the RCA 44BX ribbon microphone
• Custom CineMag USA transformer for exceptional low-end and clarity
• Ultra-thin 2.5-micron aluminum ribbon for high sensitivity and transient response
• Figure-8 polar pattern for natural room ambience and off-axis rejection
• Passive design—no phantom power needed, works with any preamp
• Includes hard case, shockmount, XLR cable, and cleaning cloth

Technical details

• Microphone Type: Ribbon
• Polar Pattern: Figure-8 (Bidirectional)
• Frequency Response: 20 Hz - 20 kHz
• Sensitivity: -52 dB (1V/Pa) @ 1 kHz
• Output Impedance: 270 Ohms
• Maximum SPL: 135 dB
• Connector: XLR 3-pin
• Ribbon Material: Aluminum, 2.5 microns thick, 50mm length
• Construction: Solid brass body, stainless steel grille
• Finish: Black
• Power Requirement: Passive (no phantom power)
• Included Accessories: Hard case, shockmount, XLR cable, cleaning cloth

Our verdict

The Warm Audio WA-44 delivers the vintage ribbon sound at an accessible price. Its build quality and included accessories make it a standout choice for any serious studio.