ELECTROLYTIC CAPACITOR MEASUREMENT

Electrolytic capacitors provide cheap uF, but their sound quality is "usually" disappointing. I want to share their measurement results. It is very hard to find an electrolytic capacitor that can keep good phase response over audio frequency range from 20Hz to 20KHz. 

Other important thing is smoothness of the response. 

​All measurements were taken on same test equipment. Result may vary with different test condition.

Nichicon Muse 470uF 25V:
Crossing 0 degree at 10.8KHz (no longer acting as a capacitor)
irregular response at 40Hz, 60Hz and 10KHz.
Nippon-Chemi 36DA 6000uF 400Vdc:
Crossing 0 degree at 3.8KHz (no longer acting as a capacitor)
irregular response below 50Hz and 300Hz.
Nippon-Chemi 36DE 19,000uF 60Vdc:
Crossing 0 degree at 2KHz (no longer acting as a capacitor)
irregular response below 10Hz
Nippon-Chemi KMH 13,000uF 80Vdc:
Crossing 0 degree at 3KHz (no longer acting as a capacitor)
irregular response below 70Hz
Nippon-Chemi SMM 680uF 420Vdc:
Crossing 0 degree at 20KHz (no longer acting as a capacitor)
irregular response below 100Hz and 300Hz and around 3K to 10KHz.
Panasonic FC 1uF 50Vdc:
Crossing 0 degree at 1MHz (no longer acting as a capacitor)
This capacitor has clean phase response. (but only 1uF)
Panasonic FC 4.7uF 100Vdc:
This capacitor has clean phase response. (but only 4.7uF
Panasonic FC 10uF 100Vdc:
irregular response at 90Hz
Panasonic FC 100uF 100Vdc:
​Crossing 0 degree at 38KHz (no longer acting as a capacitor)
irregular response around 200Hz to 400Hz
Panasonic FC 180uF 100Vdc:
Crossing 0 degree at 30KHz (no longer acting as a capacitor)
irregular response around 60Hz to 400Hz.
Panasonic FC 220uF 16Vdc:
Crossing 0 degree at 90KHz (no longer acting as a capacitor)
irregular response around 30Hz to 100Hz.
Panasonic FC 220uF 25Vdc:
​Crossing 0 degree at 90KHz (no longer acting as a capacitor)
irregular response around 50Hz to 100Hz
Panasonic FC 270uF 100Vdc:
​Crossing 0 degree at 25KHz (no longer acting as a capacitor)
irregular response around 20Hz to 100Hz
Panasonic FC 330uF 100Vdc:
Crossing 0 degree at 21KHz (no longer acting as a capacitor)
irregular response around 30Hz to 100Hz.
Panasonic FC 390uF 100Vdc:
​Crossing 0 degree at 10.7KHz (no longer acting as a capacitor)
irregular response around 20Hz to 100Hz.
Panasonic FC 470uF 100Vdc:
Crossing 0 degree at 10.7KHz (no longer acting as a capacitor)
irregular response around 20Hz and 300Hz
Panasonic FC 680uF 100Vdc:
Crossing 0 degree at 30KHz (no longer acting as a capacitor)
irregular response around 100Hz to 100Hz.
Panasonic FC 1200uF 63Vdc:
Crossing 0 degree at 10.1KHz (no longer acting as a capacitor)
irregular response below 100Hz
Panasonic FC 1800uF 63Vdc:
Crossing 0 degree at 9KHz (no longer acting as a capacitor)
irregular response below 100Hz and 400Hz.
Panasonic FC 2700uF 25Vdc:
​Crossing 0 degree at 7.5KHz (no longer acting as a capacitor)
irregular response below 100Hz.
Panasonic FC 3300uF 25Vdc:
​Crossing 0 degree at 7KHz (no longer acting as a capacitor)
irregular response below 50Hz.
Panasonic FC 4700uF 16Vdc:
Crossing 0 degree at 10.3KHz (no longer acting as a capacitor)
irregular response below 40Hz, and between 6KHz to 9KHz
Panasonic FC 4700uF 25Vdc:
Crossing 0 degree at 5.5KHz (no longer acting as a capacitor)
irregular response below 40Hz, and 300Hz
Panasonic GAA 22000uF 40Vdc:
Crossing 0 degree at 2.5KHz (no longer acting as a capacitor)
irregular response below 90Hz.

Panasonic OS SEPC 100uF 16Vdc:
​Crossing 0 degree at 27KHz (no longer acting as a capacitor)
irregular response below 100Hz and between 40Hz to 70Hz.
Panasonic OS SEPF 1000uF 16Vdc:
Crossing 0 degree at 200KHz (no longer acting as a capacitor)
irregular response below 100Hz and around 100KHz.
Panasonic OS SEPF 120uF 35Vdc:
Crossing 0 degree at 55KHz (no longer acting as a capacitor)
irregular response between 60Hz to 100Hz.
Panasonic OS SXE 6.8uF 100Vdc:
​Crossing 0 degree at 300KHz (no longer acting as a capacitor)
It looks like have a clean phase response.
Panasonic OS SXE 15uF 100Vdc:
​Crossing 0 degree at 333KHz (no longer acting as a capacitor)
It looks like have a clean phase response.

Panasonic OS SXE 47uF 80Vdc:
Crossing 0 degree at 100KHz (no longer acting as a capacitor)
It looks like have a clean phase response.
Sanyo OS 22uF 25Vdc:
Crossing 0 degree at 85KHz (no longer acting as a capacitor)
irregular response from 400Hz to 4000Hz.
Sanyo OS 33uF 20Vdc:
​Crossing 0 degree at 75KHz (no longer acting as a capacitor)
irregular response from 200Hz to 1000Hz.
Sanyo OS 220uF 10Vdc:
​Crossing 0 degree at 33KHz (no longer acting as a capacitor)
irregular response between 40Hz to 100Hz,900Hz and 90KHz.
Sanyo OS 470uF 16Vdc:
​Crossing 0 degree at 16KHz (no longer acting as a capacitor)
irregular response below 400Hz, and 10KHz.
JJ 50uF + 50uF 500Vdc:
irregular response from 100Hz to 300Hz.
JJ ANH 20uF 500Vdc:
irregular response from 400Hz to 800Hz.
JJ ANH 47uF 500Vdc:
irregular response between 100Hz and 800Hz.
CDE Flat Pack MLP272M100EB0A 2700uF 100Vdc:
Crossing 0 degree at 7KHz (no longer acting as a capacitor)
irregular response below 100Hz.
CDE 550C 10000uF 250Vdc:
Crossing 0 degree at 2600Hz (no longer acting as a capacitor)
irregular response below 10Hz.