Better Music Builder DFS-712 12 Inch 2-way Full Range Speaker User Manual

Better Music Builder DFS-712 12 Inch 2-way Full Range Speaker

SAFETY INSTRUCTIONS

PLEASE READ THIS MANUAL FIRST
Thank you for buying M product. Read this manual first as it will help you operate the system properly. Please keep this manual for future reference.

WARNING:

1. This product must be installed by professionals. When using hanging brackets or rigging other than those supplied with the product, please ensure they comply with the local safety codes.
2. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
3. To reduce the risk of electric shock, only qualified professionals can remove the cover of this system

The lighting flash & arrowhead symbol within an equilateral triangle is intended to alert you that this part is not dielectric, and may cause the hazard of electric shock

The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and servicing instructions.

System Features

• 2-Way full range passive loudspeaker
• 1 x 12” high power low frequency transducer
• 1 x compression driver with 1.7” titanium diaphragm
• 2 x NL4 connector
• Dynamic Fusion Technology™ (DFT)
• Enclosure constructed of 15 mm plywood with durable painting
• 100° x 90° wide dispersion can set better coverage
• Frequency response 55Hz~18kHz
• Sensitivity 99dB
• Computer stimulation design technology ensures good frequency response and excellent phase feature
• Integral 35mm pole mount receptacle for stand or vertical installation

Description

DFS-712 12” 2-Way full range passive loudspeaker.
The system comprises of 1×12” high-power low frequency transducer and 1×1.7” diaphragm compression high frequency driver.
Big dynamic and high sensitivity, clear & penetrating at high frequency, good bass sound.

Applications

• Medium conference room
• Multifunctional halls
• Live performance

NL4 Connection

Technical Specification

• System: Passive full range wooden speaker with painting
• Tweeter: 1 x 1.7” diaphragm compression driver
• Woofer: 1 x 12” high power low frequency transducer
• Frequency response (-3dB): 55Hz~18kHz
• Sensitivity (1W@1m): 99dB
• Rated Impedance: 8 Ohms
• Maximum SPL: 123 dB (129 dB peak)
• Power Rating: 400W (RMS) 1600W (PEAK)
• Dispersion (H x V): 100°× 90° (H × V)
• Construction: 15 mm, plywood Installation: M8 hanging point Connector: 2 x NL4 Speakon
• Cabinet Dimensions (W×H×D): 13.8×26×15 in 35×65.9×38 cm
• Net Weight:  46.3 Lbs / 21 Kg

System Connection Reference

Attention: The Impedance of connected speaker must match the Impedance of amplifier output.
Attention: Make sure the polarity of speaker and amplifier correctly.

Speaker Testing Method

1. Frequency Response
   Use Pink noise to test the speaker in the anechoic chamber, adjust the laval to maka the spukar work at Its rated Impedance and sat the output power at 1W, than test the frequency response 1m away from the speaker.

2. Sensitivity
   Use full range Pink noise which has been modified using an EQ curve to test the speaker In the anechoic chamber, Increasing the signal to make the speaker work at Its rated impedance and set the power output at 1W, then test the sensitivity 1 m away from the speaker.

3. MAX.SPL
   UH full range Pink noise which has been modified using an EQ curve to test the speaker in the anechoic chamber, Increase the signal to make the speaker work at Its maximum power output level, then test the SPL 1 m away from the speaker.

4. Rated Power
   Use Pink noise to the IEC#268-5 standard to test the speaker, Increase the sign al for a continuous period of100 hours, the rated power is the power when the speaker will show no visible or measurable damage.

Frequency response curve & Impedance curve

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