Celestion Seventy 80 guitar speaker measurements
Last updated: April 4, 2016
This is a collection of my measurements about a Celestion Seventy 80 (or G12P-80) guitar speaker. For the close field measurements I've used a Laney TFX2 cabinet.
These speakers come stock in many guitar amps and compare to other generic guitar speakers they have a reasonable sound.
Measured Thiele-Small parameters
Celestion Seventy 80 frequency response from 0,5m (0 deg and 45 deg)
Celestion Seventy 80 free-air impedance
Harmonic distortion at 2,8V RMS
Close field response with Shure SM57 in a Laney TFX-2 cabinet, mic distance from the grill clothes is 1 cm (red: closed box, blue: open back)
My measurement vs. datasheet (red: mine, blue: Celestion datasheet)
Celestion Seventy 80 vs. Celestion V30