Spyder subwoofers

Thiele/Small parameters of Spyder 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

25 models

Model	Size	Voice coils	Fs, Hz	Qts	Vas, ft³	Xmax, in	RMS, W
Nitro 8 350W S2	8″	2 Ω	38	0.64	0.42	—	350
Nitro 8 350W S4	8″	4 Ω	38	0.64	0.42	—	350
Nitro 8 500W S4	8″	4 Ω	38	0.64	0.42	—	500
Nitro 8 800W S2	8″	2 Ω	36	0.52	1.80	0.39	800
Nitro 8 800W S4	8″	4 Ω	36	0.52	1.80	0.39	800
STR700 8 175W !	8″	4 Ω	32	0.82	2.65	—	175
Nitro 10 800W S2 !	10″	2 Ω	33	0.46	1.94	0.39	800
Nitro 10 800W S4 !	10″	4 Ω	33	0.46	1.94	0.39	800
STR700 10 175W	10″	4 Ω	31	1.06	2.75	—	175
Nitro 12 350W S2	12″	2 Ω	38	0.82	1.06	—	350
Nitro 12 350W S4	12″	4 Ω	38	0.82	1.06	—	350
Nitro 12 700W D2	12″	dual 2 Ω	33.2	0.52	2.20	—	700
Nitro 12 700W D4	12″	dual 4 Ω	33.2	0.52	2.20	—	700
Nitro 12 700W S2	12″	2 Ω	33.2	0.52	2.20	—	700
Nitro 12 700W S4	12″	4 Ω	33.2	0.52	2.20	—	700
Nitro 12 800W S2	12″	2 Ω	31	0.55	2.19	0.39	800
Nitro 12 800W S4	12″	4 Ω	31	0.55	2.19	0.39	800
Street 700 12 200W	12″	4 Ω	28	0.88	5.30	—	200
Street PWR 12 300W	12″	4 Ω	25	0.86	2.41	—	300
Street PWR 12 400W	12″	4 Ω	28	0.88	5.30	—	400
Street PWR 12 400W Parabolico !	12″	4 Ω	42	0.85	2.15	—	400
Nitro 15 700W D2	15″	dual 2 Ω	25.6	0.53	7.13	—	700
Nitro 15 700W D4	15″	dual 4 Ω	25.6	0.53	7.13	—	700
Nitro 15 700W S2	15″	2 Ω	25.6	0.53	7.13	—	700
Nitro 15 700W S4	15″	4 Ω	25.6	0.53	7.13	—	700

Click a column header to sort. “!” means the model’s published specs don’t add up; details are on its page.