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PHL 1440/X17
1" Soft Dome Coaxial Full Range Driver, High SPL, High Sounding Quality
US $201.63
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Applications
- Full range transducer dedicated to the reporoduction of 50-20000Hz frequencies
- It uses a 1" high efficiency soft dome coaxially mounted in time alignment with the main cone
- Usable for direct radiation in small volumes from 12L tuned at 70Hz

Features
- Power handling capacity - 100/60W ABS
- Reference Efficiency (1W @ 1m) - 94/95 dB SPL
- SPL max (continuous) - 110/111 dB SPL
- Usable frequency range - 50-20000 Hz
- Environmental withstanding - Outdoor

Typical Characteristics
    1440 TWX 1"  
Rated Impedence    Z    8 6 Ω
Reference Efficiency (1W @ 1m) - 94 95 dB SPL
Usable Frequency Range 1 - 50-4000 3000-20000 Hz
Power Handling Capacity 2 (AES) - 100 60 W
Max Sound Pressure Level 3 SPL max 110 111 dB SPL
Min. Impedence modulus Z min 6.6 @ 370Hz 4.3 @ 4500Hz Ω
Voice-coil Inductance 4 @ 1 kHz L e1k 0.61 - mH
                                   @ 10 kHz L e10k 0.23 - mH
BI product BI 8.80 - N/A
Moving Mass M ms 0.011 - Kg
 
Thiele-Small Parameters : Typical (OC Limits)
    1440 TWX 1"  
Resonance Frequency 5 F s 55 (±7) 1650 (±250) Hz
DC resistance 6 R e 6.1 (±0.6) 3.9 (±0.5) Ω
Mechanical Quality Factor Q ms 3.5 - 1
Electrical Quality Factor Q es 0.30 - 1
Total Quality Factor Q ts 0.28 - 1
Mechanical Suspension Compliance C ms 750 - 10-6 m/N
Effective Piston Area S d 0.0143 - m2
Equivalent C as Air Load V as 0.022 - m3
Max. Linear Excursion X max ±3.5 0.2 mm
Linear Displacement Volume V d 0.050 - 103 m3
Half-space Efficiency   1.2 - %
Unity Load Volume VasQts2 1.7 - 103 m3
 
Absolute Maximum Ratings
    1440 TWX 1"  
Short term max. input voltage 7  V max 60 40 V
Max. Excursion Before Damage X dam ±8 - mm
Lowest Recommended X-Over Frequency - - 3000 Hz
Ambient Operating Temperature   -10 to +50 °C
Storage Temperature 8   -20 to +70 °C
Environmental Conditions   Outdoor  
 
Application Information
    1440 TWX 1"  
Air Volume Occupied by the Driver 10   0.5 - 103 m3
Speaker Net Mass   2.15 53.10-3 Kg
Recommended 2nd Order Passive X-Over   - 4.7 / 0.33 C / L
Recommended Reflex Box   Vb/Fb  12/70   L/Hz
Electrical Polarity A positive voltage applied on the red terminal produces forward cone motion

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 150 liter Bass-Reflex test enclosure tuned at 40Hz.
- 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
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