Evolution Technologies EVO30, EVO40, EVO-50, EVO20 Bass and BASS/MIDRANGE Drive Unit Specifications

Pacific Evo220066.qxd 18/10/2006 10:24 Page 22

Evolution²Evolution²

BASS AND BASS/MIDRANGE DRIVE UNIT SPECIFICATIONS

	17168	17169	17167	13119	13118
	170mm (6.5”) Bass	170mm (6.5”) Bass/Mid	170mm (6.5”) Bass/Mid	125mm (5”) Bass/Mid	125mm (5”) Bass/Mid
	Aluminium
Frame material		Aluminium	Aluminium	Aluminium	Aluminium
Cone & dome material	Woven Kevlar	Woven Kevlar	Woven Kevlar	Woven Kevlar	Woven Kevlar
Surround	s r b p Single roll	s r b p Single roll	s r b p Single roll	s r b p Single roll	s r b p Single roll
Spiders	Single	Single	Single	Single	Single
Coil size & type	25mm Aluminium	25mm Aluminium	25mm Aluminium	25mm Aluminium	25mm Aluminium
Winding spec	4 layer round cu x 11.5mm	2 layer round cu x 11.2mm	2 layer round cu x 15mm	2 layer round cu x 13.6mm	2 layer round cu x 11.5mm
Magnet (D1 x D2 x H)	70 x 32 x 15 ferrite	70 x 32 x 15 ferrite	70 x 32 x 15 ferrite	80 x 32 x 15 ferrite	80 x 32 x 15 ferrite
Magnet weight	106gm	106gm	106gm	168gm	168gm
Gap flux density	0.9 T	1.0 T	1.0 T	1.0 T	1.0 T
Top plate thickness	6mm	6mm	6mm	6mm	6mm
Optimum working range	40Hz – 500Hz	54Hz–4000Hz	54Hz–4000Hz	65Hz–5000Hz	58Hz–5000Hz
Venting	Coil, pole	Coil, pole	Coil, pole	Coil, pole	Coil, pole
Thiele Small parameters	4 – ö4	4 – ö4	4 – ö4	4 – ö4	4 – ö4
Effective cone diameter	140mm	140mm	140mm	105mm	105mm
Re	5.8Ù	5.8Ù	3.4Ù	14.5Ù	3.4Ù
Fs	40Hz	54Hz	54Hz	65Hz	58Hz
Qms	7.13	4.67	4.75	3.32	3.14
Qes	0.69	0.84	0.66	0.68	0.37
Qts	0.63	0.71	0.58	0.56	0.33
Mms	28.11gm	16.62gm	17.17gm	7.26gm	8.01gm
Cms	0.54mm/N	0.51mm/N	0.51mm/N	0.83mm/N	0.93mm/N
Vas	17.76L	16.77L	16.94L	8.64L	9.69L
BL	7.78t/m	6.3t/m	5.48t/m	7.95t/m	5.22t/m

MIDRANGE SPECIFICATIONS

Part number	07104A
Dome material & size	50mm textile
Coil size & type	50mm aluminium
Magnet d1 x d2 x h	48.5 x 20 x 5 Neodynium
Magnet weight	84gm
SPL 1w @ 1m	92dB
Fs	0.00kHz
Frequency range -3dB	600Hz–12kHz
Upper frequency limit -10dB	18kHz
Distortion at 100dB @ 1m	typically < 1%

TWEETER SPECIFICATIONS

Part number	0367
Dome material & size	25mm textile
Coil size & type	25mm aluminium
Magnet d1 x h	25.4 x 4mm Neodynium
Magnet weight	14gm
SPL 1w @ 1m	93dB
Fs	1.3kHz
Frequency range -3dB	800Hz–40kHz
Upper frequency limit -10dB	45kHz
Distortion at 100dB @ 1m	typically < 1%

CROSSOVER SPECIFICATIONS

Crossover sections	2 way, 2.5 way, 3 way
Type	Butterworth
Wiring	HQ OFC cable
Connections	solder

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