Name: Oyaide MWA-RC MWA cover caps for RCA jacks prevent from vibration, noise and dust
Brand: Oyaide
SKU: MWA-RC
Availability: BackOrder

Description

The Oyaide MWA-RC is a set of RCA terminal cover caps made from Oyaide’s proprietary MWA (Magnetic Wave Absorber) material, designed to shield unused RCA inputs and outputs from electromagnetic noise, vibration, and dust. These small but powerful accessories help maintain a cleaner signal path by blocking unwanted interference from entering your system through open RCA ports.

Basic

Our original Magnetic Wave Absober, MWA series, was released in 2009 and become very popular for its sure effect against noise generated by electoric magnatic wave around equipments.

MWA-RC created by the develpment that we applied this MWA material for a RCA cover cap for preventing EMA, noise and dust altogether with very easy usage just attaching it onto the RCA jacks.

“MWA-RC” Features

・Just push it in the RCA Jacks which is not used.
・The material of the body is polypropylene which damps tiny vibrations of the contacts.
・ 1mm thick MWA electric wage absorber attenuates noise from the contacts.
・The cover cap prevent dust incopration and troubles caused by dust.
・Multiple use enhanses the effects.
・It can be used for both of Input/Output jacks.

Features

Flat Metal Powder of “SENDUST” Alloy

In the MWA electric wave absorber pasted on the top MWA-RC, the material called “SENDUST” alloy which has strong noise absorbing property is mixed into as powder. This metal was developed in Sendai, Japan in 1930’s, is composed of Al, Fe, SiO2. And it is processed into flat shape powder which has higher absorbing property against electric magnetic wave.
We achieved to maximize its property by laying down the powder evenly and parallelly on its base material which is made of special rubber of polyethylene

💎 Key Features

✅ MWA Absorber Material

Absorbs high-frequency EMI (GHz range) from surrounding digital and analog equipment
Helps suppress ground plane noise and internal interference
Non-metallic and non-magnetic — 100% safe around analog signal paths

✅ Vibration Damping + Dust Sealing

The soft but firm elastomer material helps dampen chassis vibration
Seals unused RCA jacks from dust and environmental debris
Prevents resonance conduction through open connector contacts

✅ Precision Fit

Slides snugly into RCA female connectors
No metal contact = safe for any gear, no electrical bridging or shorts
Easy to insert and remove without tools

🔊 Sonic Benefits

Lowers noise floor and hash in both analog and digital systems
Improves channel separation, imaging, and midrange clarity
Particularly helpful in phono stages, DACs, preamps, and integrated amps

🎯 Best Use Cases

Any audio gear with unused RCA inputs or outputs:
- Integrated amps
- Phono stages
- CD players / DACs
- AV receivers or stereo preamps
Systems with sensitive analog front ends or exposed gear near RF sources

🛠️ Pro Setup Tips:

Insert into all unused RCA jacks, especially those near digital inputs or phono paths
Combine with MWA-RC caps, MWA sheets/tapes, and NRF-005L for comprehensive EMI control
For XLR-equipped gear, consider matching with similar XLR caps if available

Specs

Model Name	MWA-RC
Material of body	Polypropylene
Material of MWA	Flatted metalic powder of sendust alloy system （Al・Fe・SiO2)
Packing Unit	6 pcs
Release Date	2012/7/7

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Oyaide MWA-RC MWA cover caps for RCA jacks prevent from vibration, noise and dust