Sanwa Supply Launches Adapters for Connecting Megaphone Speakers, Converting 6.3mm Stereo Standard Plugs and 3.5mm Plugs to 6.3mm Plugs
Sanwa Supply released a 6.3mm cable for megaphone speaker connection and a 3.5mm to 6.3mm conversion adapter.
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- 📰 Published: April 1, 2026 at 20:00

Sanwa Supply Inc. (Headquarters: 1-10-1 Tamachi, Kita-ku, Okayama City; Representative Director and President: Kazunori Yamada) has launched the "MM-SPKB1-10N" audio cable with 6.3mm stereo standard plugs on both ends (male-to-male specification) and the "MM-SPKB2N" adapter that converts a 3.5mm stereo mini plug to a 6.3mm stereo standard plug.
These cables and adapters are ideal for connecting megaphones, amplifiers, and other audio equipment.
【Product Pages】
Product Name: 6.3mm Stereo Standard Plug (Male-to-Male) Cable (10m)
Product Number: MM-SPKB1-10N
Standard Price: 6,380 yen (5,800 yen excluding tax)
Product Page: https://www.sanwa.co.jp/product/syohin?code=MM-SPKB1-10N
Product Name: 3.5mm Stereo Mini Plug to 6.3mm Stereo Standard Plug Conversion Adapter
Product Number: MM-SPKB2N
Standard Price: 2,860 yen (2,600 yen excluding tax)
Product Page: https://www.sanwa.co.jp/product/syohin?code=MM-SPKB2N
6.3mm Stereo Standard Plug Cable "MM-SPKB1-10N" for connecting megaphone speakers
Recommended for connecting megaphones
Also supports connecting megaphone speakers.

Generous 10m long design
Megaphone speakers can be placed up to 10m apart, allowing for flexible layouts such as positioning them at both ends of a stage or dividing them between the front and back of a venue.

3.5mm to 6.3mm conversion adapter that converts mini plugs to standard plugs
Converts 3.5mm plugs to 6.3mm plugs
This adapter converts devices with 3.5mm stereo mini plugs to 6.3mm stereo standard plugs.


Also supports connecting megaphone speakers
It is possible to connect megaphone speakers with different external output jack sizes.
For example, MM-SPAMP8, MM-SPAMP4, and MM-SPAMP7 can be connected.

Gold-plated plug surface treatment
The use of gold plating, which is resistant to aging, minimizes contact failure and transmits audio signals without loss.

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【Related Pages】
Megaphones
https://www.sanwa.co.jp/product/peripheral/kakuseiki/index.html
Video/AV Cables
https://www.sanwa.co.jp/product/cable/av/index.html?pan_list=1#audio
Conversion Adapters/Cables
https://www.sanwa.co.jp/product/input/headset/adapter.html
■Sanwa Supply Official Site "Sanwa Direct" Product Pages
https://direct.sanwa.co.jp/ItemPage/MM-SPKB1-10N
https://direct.sanwa.co.jp/ItemPage/MM-SPKB2N
■Sanwa Supply WEB Site
■Sanwa Supply Instagram
https://www.instagram.com/sanwasupply_official/
■Sanwa Supply X
■Sanwa Supply Facebook
■YouTube Official Channel
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d11495-5895-68dbfb4a8b7d88ab17fa8febf2bb372e.pdfFAQ
What are the ideal uses for this cable and adapter?
They are ideal for connecting megaphone speakers, amplifiers, and other audio equipment, especially useful for flexible sound layouts at event venues.
What is the advantage of the 10m cable?
It allows megaphone speakers to be placed up to 10m apart, enabling flexible layouts such as at both ends of a stage or front and back of a venue.
What are the benefits of gold-plated plugs?
Gold-plated plugs are resistant to aging, minimize contact failure, and transmit audio signals clearly without loss, ensuring reliable connections.