Diy 3-way horn speaker

Diy 3-way horn speaker

New design 3-ways speaker box ...front view.

Speaker box rear view... woofer with L-load design.

Mid horn is JBL 2380 Flat front Bi-radial horn.

Woofer import from Thailand.

P-Audio 15BM-300B.

About 300W 97db Fs:48hz Vas:123lt

Mid Altec 288B

Tweeter Jensen RP-302

Amplifier test.

Mid driver clean Diaphragm

Altec 290-4G & Altec 288B clean diaphragm 

Take off cover

Take off diaphragm and clean inner chamber

double check have any noise

Mouse auto testing machine

Mouse auto testing handle utility

Mouse spec. test setting utility

Mouse auto testing display

put mouse in test rack

Mouse move auto testing 

Mouse orbit test for RF protocol package issue

analysis result

Mouse on air test for power saving issue

Mouse test finish

Mouse auto test handle front view

Mouse auto test handle rear view

Mouse auto test handle cover up view

motors and drivers inside

Slave PLC controller

Keyboard auto test machine

Keyboard auto test system terminal. 

Keyboard type spec. setting utility.

Keyboard auto test handle utility

Keyboard testing display

Keyboard driver code record feature

Keyboard CAM location teach utility

Keyboard two-key testing feature

Real testing movie

3-Way3 Horn speaker 號角喇叭

3-Way3 Horn speaker 號角喇叭 95db

Woofer 15'' / Mid Altec compression driver /Tweeter ribbon speaker

Altec compression driver & Horn

DAC Tube pre-amplifier

E88CC , 6JM6 PSE Tube amplifier

Friend's Amplifier E88CC + PSE 6JM6

Side view

Top View

RIAA curve (曲線) ....音樂在聽RIAA是啥!

Recording 是指現場錄音麥克風收錄的音壓曲線.

1khz 以下很差大致是錄音麥克風低頻響應靈敏度差也就是性能差之故.

再此意指播放還原音壓低頻響應曲線要拉高之故.

Reproduce (也就是 playback curves)是指播放音樂時 LP放大器, 前極, 後極, 分音器, 喇叭 ....還原音壓曲線(profile)的總和.