SCAN-SPEAK 18WE-4542T00 7 Inch Midwoofer Instructions
- June 1, 2024
- SCAN-SPEAK
Table of Contents
SCAN-SPEAK 18WE-4542T00 7 Inch Midwoofer
Product Information
Specifications:
- Resonance frequency [fs]: 46 Hz
- Mechanical Q factor [Qms]: 5.62
- Electrical Q factor [Qes]: 0.26
- Total Q factor [Qts]: 0.25
- Force factor [Bl]: 8.1 Tm
- Mechanical resistance [Rms]: 0.9 kg/s
- Moving mass [Mms]: 17.5 g
- Compliance [Cms]: 0.68 mm/N
- Effective diaper. diameter [D]: 35/45 mm
- Effective piston area [Sd]: 19.5 mm
- Equivalent volume [Vas]: 17.2 l
- Sensitivity (2.83V/1m): 92.5 dB
- Ratio Bl/Re: 4.39 N/W
- Ratio fs/Qts: 184 Hz
Description:
The MIDWOOFER 18WE/4542T00 is a high-performance mid-woofer featuring an elliptical voice coil and magnet gap, providing high sensitivity, low distortion, and fast transient response for a TRUE TO LIVE sound experience.
Voice Coil & Magnet Data:
- Voice coil diameter: 35/45 mm
- Voice coil height: 19.5 mm
- Voice coil layers: 2
- Height of gap: 5 mm
- Linear excursion: Not specified
- Max mech. excursion: Not specified
- Unit weight: 1.7 kg
Advanced Parameters (Preliminary):
- Resistance [Re’]: Not specified
- Free inductance [Leb]: Not specified
- Bound inductance [Le]: Not specified
- Semi-inductance [Ke]: Not specified
- Shunt resistance [Rss]: Not specified
Product Usage Instructions:
Installation:
- Ensure the mid-woofer is compatible with your audio system.
- Mount the mid-woofer securely in the designated speaker enclosure.
- Connect the wiring following the polarity markings (+ and -).
Tuning and Equalization:
Adjust the mid-woofer settings on your audio system to optimize the sound output based on your preferences.
Maintenance:
Regularly check for any loose connections or damage. Clean the midwoofer gently with a soft, dry cloth if necessary.
Power Handling:
Avoid exceeding the maximum power handling capacity of the mid-woofer to prevent damage.
Frequently Asked Questions (FAQ):
-
Q: Is the mid-woofer waterproof?
A: No, the mid-woofer is not waterproof. Avoid exposing it to moisture to prevent damage. -
Q: Can I paint the mid-woofer?
A: It is not recommended to paint themid-wooferr as it may affect its performance and durability. -
Q: What is the warranty period for the mid-woofer?
A: The warranty period may vary, please refer to the manufacturer’s warranty information provided with the product.
With the Ellipticor family, a long tradition of circular motor structures and their inherent breakup behaviour has been broken since one of its key features is an Ellipticor voice coil and magnet gap. In combination with the powerful SD AirCirc magnet system, the 18WE has high sensitivity, very low distortion, and extremely fast response to transients. Above all a TRUE TO LIVE sound which makes 18WE/4542T00 one of the very best mid-woofers on the market!
DIMENSION
KEY FEATURES
- Elliptic voice coil
- Very low mechanical losses
- High sensitivity (SPL)
- AirCirc optimized magnetsystem
- Unusually low distortion
- Flexible appearence with replaceable decor ring
T-S Parameters
- Resonance frequency [fs] 46 Hz
- Mechanical Q factor [Qms] 5.62
- Electrical Q factor [Qes] 0.26
- Total Q factor [Qts] 0.25
- Force factor [Bl] 8.1 Tm
- Mechanical resistance [Rms] 0.9 kg/s
- Moving mass [Mms] 17.5 g
- Compliance [Cms] 0.68 mm/N
- Effective diaph. diameter [D] 130 mm
- Effective piston area [Sd] 133 cm²
- Equivalent volume [Vas] 17.2 l
- Sensitivity (2.83V/1m) 92.5 dB
- Ratio Bl/√Re 4.39 N/√W
- Ratio fs/Qts 184 Hz
Notes:
IEC specs. refer to IEC 60268-5 third edition. All Scan-Speak products are
RoHS compliant. Data are subject to change without notice. Datasheet updated:
January 29, 2018.
Electrical Data
- Nominal impedance [Zn] 4 Ω
- Minimum impedance [Zmin] 4.1 Ω
- Maximum impedance [Zo] 76 Ω
- DC resistance [Re] 3.4 Ω
- Voice coil inductance [Le] 0.1 mH
Power Handling
- 100h RMS noise test (IEC 17.1) 50 W
- Long-term max power (IEC 17.3) 100 W
Voice Coil & Magnet Data
- Voice coil diameter 35/45 mm
- Voice coil height 19.5 mm
- Voice coil layers 2
- Height of gap 5 mm
- Linear excursion ± 7.2 mm
- Max mech. excursion ± 12 mm
- Unit weight 1.7 kg
FLOW CHART
Advanced Parameters
Electrical data
- Resistance [Re’] – Ω
- Free inductance [Leb] – mH
- Bound inductance [Le] – mH
- Semi-inductance [Ke] – SH
- Shunt resistance [Rss] – Ω
Mechanical Data
- Force Factor [Bl] – Tm
- Moving mass [Mms] – g
- Compliance [Cms] – mm/N
- Mechanical resistance [Rms] – kg/s
- Admittance [Ams] – mm/N
N.C. Madsensvej 1 · 6920 Videbæk · Denmark · Phone: +45 6040 5200 · www.scan- speak.dk