{"product_id":"aea-r44cx","title":"AEA R44CX","description":"\u003cdiv lang=\"en\"\u003e\n  \u003cp\u003e\u003cstrong\u003eAEA R44CX\u003c\/strong\u003e is a passive ribbon microphone — a museum-quality replica of the RCA 44BX with the X-Motor modification. Two additional neodymium magnets in the motor increase output by 6 dB over the R44C and the original RCA 44BX with no active electronics. All mechanical and acoustic components — the 1.8-micron ribbon at 59.7 mm × 4.7 mm made from material produced for RCA, the transformer, the motor parts — are interchangeable with an original 1936–1938 RCA 44BX. The R44CX is externally identical to the R44C (bronze investment cast yoke, hand-polished cushion mount, cloth-covered Accusound Silver Studio Pro cable) and distinguished only by a red badge in place of the black-and-silver one.\u003c\/p\u003e\n\n  \u003ch3\u003eX-Motor and 4.47 mV\/Pa — Wide Dynamic Range Without Active Electronics\u003c\/h3\u003e\n  \u003cp\u003eThe X-Motor modification — invented by AEA — adds two permanent magnets to the ribbon motor, raising sensitivity from 2.25 mV\/Pa (R44C) to 4.47 mV\/Pa (–47 dBV), a 6 dB increase with no change in tonal character. The undamped, long ribbon at 59.7 mm tuned to 16.5 Hz — the longest and lowest-tuned ribbon in current production — preserves full dynamic headroom without clip at SPLs above 165 dB. In practice the higher output translates to better SNR on quiet sources, a wider dynamic range in scoring and orchestral sessions, and broader preamp compatibility without specific high-impedance or high-gain requirements. The tonal character — rich low end, relaxed top, smooth midrange with a characteristic 2 dB\/octave tilt from low to high — is unchanged from the R44C.\u003c\/p\u003e\n\n  \u003ch3\u003eMuseum-Grade Construction and Preamp Requirements\u003c\/h3\u003e\n  \u003cp\u003eThe bronze investment cast yoke is superior to the original RCA zinc yokes, which corrode over decades. The cushion mount is hand-polished; the cable is cloth-covered Accusound Silver Studio Pro. The R44CX requires no phantom power — 48 V can damage the ribbon. Sensitivity of 4.47 mV\/Pa and 270 Ω output impedance still require a preamp with at least 60 dB of gain and input impedance above 1.2 kΩ, though the higher X-Motor output broadens compatible preamp options compared to the R44C. The microphone ships with a 3-meter captive cable, an AEA 44VC vertical carrying case, and a zippered canvas bag.\u003c\/p\u003e\n\n  \u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePassive RCA 44BX replica with X-Motor modification (+6 dB output vs. R44C)\u003c\/li\u003e\n    \u003cli\u003e1.8-micron aluminum ribbon — 59.7 mm × 4.7 mm, ribbon material originally produced for RCA\u003c\/li\u003e\n    \u003cli\u003eUndamped ribbon design — 16.5 Hz resonant tuning, longest ribbon in current production\u003c\/li\u003e\n    \u003cli\u003ePolar pattern: figure-8 (bidirectional)\u003c\/li\u003e\n    \u003cli\u003eMax SPL: 165+ dB (1% THD harmonic distortion \u0026gt;1 kHz)\u003c\/li\u003e\n    \u003cli\u003eSensitivity: 4.47 mV\/Pa (–47 dBV) into unloaded circuit\u003c\/li\u003e\n    \u003cli\u003eOutput impedance: 270 Ω broadband\u003c\/li\u003e\n    \u003cli\u003eRecommended load impedance: ≥1.2 kΩ\u003c\/li\u003e\n    \u003cli\u003ePhantom power: not required or recommended\u003c\/li\u003e\n    \u003cli\u003eAll parts interchangeable with original RCA 44BX\u003c\/li\u003e\n    \u003cli\u003eBronze investment cast yoke, hand-polished cushion mount\u003c\/li\u003e\n    \u003cli\u003eRed badge distinguishes X-Motor version from standard R44C\u003c\/li\u003e\n    \u003cli\u003e3 m cloth-covered Accusound Silver Studio Pro captive cable, XLR-3M\u003c\/li\u003e\n    \u003cli\u003eAccessories: AEA 44VC vertical case, zippered canvas bag\u003c\/li\u003e\n    \u003cli\u003eDimensions: 311 mm (H) × 117 mm (W) × 83 mm (D); weight: 3.43 kg with cable\u003c\/li\u003e\n    \u003cli\u003eHandmade in Pasadena, California, USA\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eOperating principle: pressure gradient transducer (passive, undamped)\u003c\/li\u003e\n    \u003cli\u003ePolar pattern: figure-8 (bidirectional)\u003c\/li\u003e\n    \u003cli\u003eFrequency range: \u0026lt;20 Hz – \u0026gt;20 kHz\u003c\/li\u003e\n    \u003cli\u003eMax SPL: 165+ dB (1% THD \u0026gt;1 kHz)\u003c\/li\u003e\n    \u003cli\u003eSensitivity: 4.47 mV\/Pa (–47 dBV) into unloaded circuit\u003c\/li\u003e\n    \u003cli\u003eOutput impedance: 270 Ω broadband\u003c\/li\u003e\n    \u003cli\u003eRecommended load impedance: ≥1.2 kΩ\u003c\/li\u003e\n    \u003cli\u003ePhantom power: not required or recommended\u003c\/li\u003e\n    \u003cli\u003ePolarity: Pin 2 + for positive pressure at front\u003c\/li\u003e\n    \u003cli\u003eOff-axis rejection: up to 90 dB at 90°\/270° (horizontal)\u003c\/li\u003e\n    \u003cli\u003eRibbon thickness: 1.8 µm; width: 4.7 mm; length: 59.7 mm\u003c\/li\u003e\n    \u003cli\u003eX-Motor modification: +2 magnets, +6 dB output vs. R44C\u003c\/li\u003e\n    \u003cli\u003eConnector: XLR-3M on 3 m cloth-covered Accusound Silver Studio Pro captive cable\u003c\/li\u003e\n    \u003cli\u003eDimensions: 311 mm (H) × 117 mm (W) × 83 mm (D)\u003c\/li\u003e\n    \u003cli\u003eWeight: 3.43 kg (with cable)\u003c\/li\u003e\n    \u003cli\u003eMade in: USA (Pasadena, CA)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AEA","offers":[{"title":"Default Title","offer_id":54014126293329,"sku":"27627","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/AEAR44CX1.jpg?v=1781105310","url":"https:\/\/wrdtunes.com\/fr\/products\/aea-r44cx","provider":"Wired Tunes","version":"1.0","type":"link"}