ESX subwoofers

Thiele/Small parameters of ESX subwoofers (8″, 10″, 12″, 15″) and a recommended sealed and ported box for every model, in a free sub box calculator.

Search Size Voice coils Ω per coil Qts

30 models

Model	Size	Voice coils	Fs, Hz	Qts	Vas, ft³	Xmax, in	RMS, W
QE822 (2x2 Ohm)	8″	dual 2 Ω	42.7	0.32	0.23	0.39	400
QXE8D2 (2x2 Ohm)	8″	dual 2 Ω	42.7	0.32	0.23	0.39	400
QXS8D4 (2x4 Ohm)	8″	dual 4 Ω	40.7	0.60	0.36	0.39	250
SX840 (4 Ohm)	8″	4 Ω	35	0.38	0.88	0.16	300
SXE8D2 (2x2 Ohm)	8″	dual 2 Ω	37	0.40	0.76	0.24	300
SXT8D2 (2x2 Ohm)	8″	dual 2 Ω	34	0.56	0.67	0.41	250
VXP84G (4 Ohm)	8″	4 Ω	36	0.50	0.67	0.47	300
VXP822G (2x2 Ohm)	8″	dual 2 Ω	38	0.46	0.56	0.47	300
QE1022 (2x2 Ohm)	10″	dual 2 Ω	37.9	0.36	0.50	0.39	600
QXE10D2 (2x2 Ohm)	10″	dual 2 Ω	37.9	0.36	0.50	0.39	600
QXP104 (4 Ohm)	10″	4 Ω	33	0.63	0.69	0.57	500
SX1040 (4 Ohm)	10″	4 Ω	29	0.32	1.66	0.59	400
SXE10D2 (2x2 Ohm)	10″	dual 2 Ω	31	0.37	0.97	0.43	400
VX10PRO (2x2 Ohm)	10″	dual 2 Ω	46	0.51	0.22	0.91	2,500
VXP104G (4 Ohm)	10″	4 Ω	31	0.61	1.49	0.47	400
QE1222 (2x2 Ohm)	12″	dual 2 Ω	33	0.38	2.08	0.79	800
QE1224 (2x4 Ohm)	12″	dual 4 Ω	37	0.44	1.91	0.52	800
QX-1222 (2x2 Ohm)	12″	dual 2 Ω	31	0.47	1.09	0.98	2,500
QXE12D2 (2x2 Ohm)	12″	dual 2 Ω	34	0.35	0.88	0.55	1,000
QXP124 (4 Ohm)	12″	4 Ω	26	0.55	1.84	0.57	500
SX1224 (2x4 Ohm)	12″	dual 4 Ω	30	0.47	1.31	0.79	750
SX1240 (4 Ohm)	12″	4 Ω	28	0.35	2.86	0.59	500
SXE12D2 (2x2 Ohm)	12″	dual 2 Ω	28	0.31	2.52	0.43	500
VE1222 (2x2 Ohm)	12″	dual 2 Ω	36	0.32	1.02	0.69	3,000
VX12PRO (2x2 Ohm)	12″	dual 2 Ω	39	0.53	0.64	0.91	3,000
QE1522 (2x2 Ohm)	15″	dual 2 Ω	33	0.44	3.85	0.52	1,000
QE1524 (2x4 Ohm)	15″	dual 4 Ω	36	0.49	3.57	0.52	1,000
QXE15D2 (2x2 Ohm)	15″	dual 2 Ω	32	0.40	2.24	0.55	1,500
VE1522 (2x2 Ohm)	15″	dual 2 Ω	35	0.40	2.26	0.69	4,000
VX15PRO (2x2 Ohm)	15″	dual 2 Ω	33	0.54	1.91	0.91	3,500

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