Anarchy 558
Anarchy 558 5-1/2" 8 Ohm Woofer.
Smaller 5.5" version of the popular high excursion 7" Anarchy woofer introduced by Exodus Audio and continued by DIYSG.
Half-Space measurements taken on my IEC Style Baffle jig for my turntable with heavily damped 1cuft sealed rear chamber.
The On/Off axis measurements were taken at 2.83v / 50cm and scaled -6dB (equivalent 2.83v/1m level). Distortion measurement taken at 2.83v / 10cm (1 watt nominal).
Measurements gated at 7ms, smoothing applied is 1/24th octave, frequency response blended to nearfield measurement below 400Hz.
T/S Specs from DATS v2:
* Piston Diameter = 109.2 mm
* f(s)= 57.2 Hz
* R(e)= 7.099 Ohms
* Z(max)= 59.49 Ohms
* Q(ms)= 4.171
* Q(es)= 0.5651
* Q(ts)= 0.4976
* V(as)= 6.92 liters (0.2444 cubic feet)
* L(e)= 0.624 mH (1kHz) - (tested with East Tester ET-430)
* n(0)= 0.2185 %
* SPL= 85.5 1W/1m
* M(ms)= 13.79 grams
* C(ms)= 0.561 mm/N
* BL= 7.891
* K(r)= 0.1284
* X(r)= 0.4617
* K(i)= 0.01453
* X(i)= 0.673
Half Space On/Off Axis Measurements - 2.83v/1m Equivalent
Harmonic Distortion - 2.83v
Impedance - Free Air
