Dayton Tall boy speaker with 2-way 16.5cm double woofer & AMT tweeter, AMT tweeter is like a ribbon tweeter. I bought a LAN cable for ATDIO and downloaded the video from Youtube, and the picture and sound quality were good and there was almost no deterioration. I think the improvement of picture and sound quality by replacing the power cord with Audio Oyaide power cable TUNAMI GPX-R V2 1.8m is also very significant.

https://procable.jp/etc/dayton_audio_t652air.html 

As of 2022.10.19, this set of Dayton tallboy speakers, left and right pair, is priced at 34,800 yen.

As of 2022/10/20, this set of Dayton tallboy speakers is priced at 34,800 yen.

The terminals of the above speakers are spring-loaded.

As for connectors, a needle plug is available.

The connector is a needle plug.

Rhodium-plated plugs are considered to have better sound quality than gold-plated ones.

However, copper and other metal connectors and speaker cables also seem to rust slightly over time, compared to plated ones. The same applies to CD, plastic, and resin SPDIF cables. However, as of 2022, SPDIF cables and fiber-optic cables that are made of glass and can be bent somewhat seem to have a longer durability.

ONKODO BP-208BR Rhodium-plated Banana Plug

(made of beryllium copper)

http://c-onkodo.com/shop/shopdetail.html?brandcode=000000000457&search=%A5%D0%A5%CA%A5%CA%A1%A1%A5%D9%A5%EA%A5%EA%A5%A6%A5%E0%C6%BC&sort=

ONKODO CT-204RH Rhodium plated Y-Lug 4 pcs.

(made of pure copper)

http://c-onkodo.com/shop/shopdetail.html?brandcode=000000000504&search=%A5%ED%A5%B8%A5%A6%A5%E0%A1%A1%A5%E1%A5%C3%A5%AD%A1%A1Y%A5%E9%A5%B0&sort=

http://c-onkodo.com/shop/shopbrand.html

ZONOTONE 6NSP-Granster 5500α/m cut sale

Price per 1m/ cut off.

http://c-onkodo.com/shop/shopdetail.html?brandcode=000000000559&search=ZONOTONE+6NSP-Granster+5500%A6%C1&sort=

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High-grade speaker cable

ZONOTONE ZONOTONE 7NSP-Neo Grandio 07Hi 

Price per 1m/ cut off.

https://amzn.to/3T21VCx

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OYAIDE　Power Cable

TUNAMI GPX-R V2

http://www.oyaide.com/ja/products/power_supply/power_cable/tunami_gpx-r_v2