Sound Check 20240727PM Square-shaped speaker 3 inch unit 3 types

The sound source is an iPhone XR Apple music directly connected to a handmade single vacuum tube amplifier.
Type 1 is made by Hyakuyen Seria's interior shelves. When recording, I close the bass reflex on the back with a cork stopper.
Speaker Unit : FOSTEX 8cm フルレンジ スピーカーユニット ペア P800K(P)
Type 2 is a sealed enclosure that combines two squares. Japanese SAKE-MASU Enclosure!
The speaker unit is 8Ω, manufacturer unknown.
Paper speaker cone with rubber edges.
Type 3 is a regular hexahedral enclosure made of plywood. The plate thickness is 9mm.
When recording, I cover the bass reflex on the back with a sponge.
Speaker Unit : FOSTEX 8フルレンジ FE83NV2
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See You! Shusendo(守銭奴)