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Home > Products > 1.5 Inch > High Fidelity Full Range Speaker for Music and Home Use

CDF40A-555-T

High Fidelity Full Range Speaker for Music and Home Use

This is a circular dynamic speaker unit with a typical metal frame, rubber suspension, and central dust cap design, and features easy-to-solder pin-type terminals. It is a compact unit suitable for embedded audio devices that require clear sound quality.
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  • 55
  • Voice Coil Diameter
    43.4 mm
  • Nominal lmpedance
  • AES Power Handing
    3W
  • Sensitivity
    81dB
  • Resonance Frequency
    170Hz± 20% Hz
  • Effective Frequency Range
    170Hz± 20% Hz
  • Listen Voltage
    3.46V
  • Weight
    34g

1758072338751629

Appearance



Front (Figure 1): The core component is a black circular diaphragm, whose edge is surrounded by a black rubber surround, providing compliant support and potential for long excursion. The slightly recessed area at the center of the diaphragm is the dust cap.

Back (Figure 2): This view shows the silver metal basket (likely die-cast or stamped), which has a robust structure. There are mounting holes with internal threads at the four corners, facilitating secure installation. The central part houses the magnetic circuit system.

Terminals (Figure 3): This close-up shows two metal solder pins (tabs), fixed in place by passing through a white plastic bracket, allowing for easy soldering connection to a circuit board.


Features



Stable structure: The metal frame and rubber surround ensure the durability and stability of the unit, capable of withstanding high power and mechanical stress.

Efficient heat dissipation: The metal frame helps dissipate the heat generated by the voice coil, enhancing power tolerance.
Easy integration: The welded pins provide reliable connections and are suitable for automated production; standard threaded mounting holes simplify the fixation process.


Advantages



Outstanding sound quality: The rubber surround and "HD" design typically offer better low-frequency response and resolution.

Secure installation: Four-corner threaded holes for installation provide excellent vibration resistance and are less prone to loosening.

Reliable connection: Welded connections are more stable than spring clips, have lower contact resistance, and offer higher long-term reliability.


Instructions


Installation: Use the appropriate length of screws, through the equipment panel, into the four threaded holes of the horn cone frame to fix. Tighten diagonally and evenly to prevent deformation of the basin frame. Soldering: Solder the positive and negative poles of the audio cable to the two pins respectively. Be sure to confirm the polarity (usually the pins or the circuit board are marked), and the reverse connection will affect the sound quality. Drive: Use a power amplifier drive that matches the unit impedance (refer to the specification, usually 4 Ω or 8 Ω) and power ( "11.50" in Figure 3 may be a clue) to avoid overload.



Application Scenarios


Audio: high-quality desktop speakers, bookshelf speakers in the treble unit. Car Stereo: Midrange or full-range speaker on the door panel or rear shelf of a car. Professional audio: auxiliary unit of stage monitor speaker, public address (PA) system. Multimedia equipment: high-performance Soundbar, computer multimedia speakers. Amplified musical instrument: Unit of a speaker for an electronic instrument.

FAQ


Q1: What is your MOQ?

A: Our standard MOQ is 100 units for regular models. We can offer a lower MOQ for pilot orders, but the unit cost will be higher.


Q2: Can we customize the color or material of the speaker? 

A: Yes. Color and material customization is available for OEM/ODM orders. Please contact us with your specific requirements for a quotation.


Q3: Do you provide ODM/OEM services?

A: Yes, we specialize in ODM and OEM services. We can design and produce speakers according to your technical specifications or design drawings.


Q4: How long does it take to develop a new product?

A: The development time depends on the complexity. It typically takes 4-8 weeks for a new design, including prototyping and testing.


Q5: What are your payment terms? 

A: We commonly accept T/T (Bank Transfer). For new customers, 50% deposit is required to start production, and the balance 50% before shipment.


Q6: Can I mix different products in one container? 

A: Yes, mixed orders are welcome. This is a cost-effective way to import. We will provide a detailed packing list for each product.


Company Overview


Jiangxi Roxound Acoustic Company was established in 2006 and is a professional speaker manufacturer with 20 years of acoustics experience. It has established manufacturing bases in Dongguan, Jiangxi, and Vietnam. The company's products are mainly used in consumer electronics, security systems, automobiles, musical instruments, micro-sized devices, and professional applications. 


We are dedicated to providing high-quality speaker units and comprehensive solutions, including free EQ and DSP tuning, passive radiator, and duct design support. Leveraging simulation software such as Finemotor, a reliability design standard library, and a pre-design database accumulated over 15 years, we ensure efficient and reliable development. We can deliver samples within 3 days, complete projects within 7 days, and have access to a professional soundproof room to guarantee the precision of acoustic testing and verification.


1757498649854877



1757498698303354


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