PHL Audio 4550 specifications Chartrettes France

4550 ■ 4560

12” Low Midrange Drivers

		4550	4560
TYPICAL CHARACTERISTICS
Rated impedance	Z	8	16		Ω
Reference efficiency (1 W@1 m)	-	98	98		dB SPL
Usable frequency range 1	-	60-3000	60–3000		Hz
Power handling capacity 2 (AES)	-	250	250		W
Max Sound Pressure Level 3	SPLmax	118	118		dB SPL
Min. impedance modulus	Zmin	6.3 @ 290Hz	10.7 @ 270Hz		Ω
Voice-coil inductance 4 @ 1 kHz	Le1k	0.98	1.68		mH
@ 10 kHz	Le10k	0.47	0.79		mH
Bl product	Bl	15.5	19.8		N/A
Moving mass	Mms	0.048	0.048		Kg
THIELE-SMALL PARAMETERS : TYPICAL (QC LIMITS)
Resonance frequency 5	Fs	45 (±6)	45 (±6)		Hz
DC resistance 6	Re	5.7 (±0.6)	9.6 (±1.0)		Ω
Mechanical quality factor	Qms	3.0	3.0		1
Electrical quality factor	Qes	0.32	0.33		1
Total quality factor	Qts	0.29	0.30		1
Mechanical suspension compliance	Cms	260	260	10-6m/N
Effective piston area	Sd	0.054	0.054		m2
Equivalent Cas air load	Vas	0.106	0.106		m3
Max. linear excursion	Xmax	± 4.0	± 4.0		mm
Linear displacement volume	Vd	0.216	0.216		10-3 m3
Half-space efficiency		2.9	2.8		%
Unity load volume	Vas Qts2	9	10		10-3 m3
ABSOLUTE MAXIMUM RATINGS
Short term max. input voltage 7	Vmax	90	125		V
Max. excursion before damage	Xdam	12	12		mm
Ambient operating temperature		–10 to +50			°C
Storage temperature 8		–20 to +70			°C
Environmental conditions 9		Outdoor
APPLICATION INFORMATION
Air volume occupied by the driver 10		2.1	2.1		10-3 m3
Speaker net mass		6.4	6.4		Kg
Recommended reflex box	Vb/Fb	50 / 53			L / Hz
Electrical polarity	A positive voltage applied on the red
	terminal produces forward cone motion.

PHYSICAL CHARACTERISTICS

326.5 max	(on angles)	8 x Ø 6.5 Holes eq. spaced
		on Ø 300 and on Ø 308
Ø
+	Red dot
2 x screw button	terminals
13		Ø 307 max.
124.5 max.
		Ø 173 max.
		Ø 281.5 max.

SPECIFICATION NOTES

Note 1 : Allowing for energy response, excursion capability, Power spectrum, and -3dB low freq. roll-off for standard reflex tuning.

Note 2 : Established at 20°C ambient temp, according to AES2-1984 standard using IEC268-1 simulated programme signal and a 50 liter Bass-Reflex test enclosure tuned at 53Hz.

Note 3 : Established at 1m on axis of the loudspeaker mounted

in test enclosure, when driven at full AES Power Handling Capacity, including 4dB of thermal compression loss.

Note 4 : Measured at 20 mA in free air.

Note 5 : Measured at 20 mA and 20°C ambient temp. in free air conditions, after full run and rest.

Note 6 : Measured at 20°C ambient temp.

QC limits are ±10%

Note 7 : Stated in RMS voltage according to IEC 268-5.

Note 8 : Includes shipping conditions. The lower limit prevents from demagnetization.

Note 9: Our products are classified in three categories : Indoor, Outdoor, and Outdoor✚ for permanent outdoor use or severe conditions.

Note 10 : Calculated for front mounting on to a 18 mm thick board.

461, rue des chênes ■ Z.A

77590 CHARTRETTES

FRANCE

Tél : 33 01 64 81 29 80

Fax : 33 01 60 69 10 28

e-mail : phlaudio@phlaudio.com

http: //www.phlaudio.com

PHL Audio S.A. provides these specifications as representative of current production after conditioning. Because of our continuous research, they are subject to change without notice.