Product Overview
This document provides essential information for the installation, operation, and maintenance of your HUMARH Tweeter Diaphragm. This diaphragm is designed as a replacement part for various Electro Voice (EV) speaker horn driver models, ensuring optimal audio performance.
It is crucial to verify the compatibility of this diaphragm with your specific speaker model before proceeding with installation. Refer to the detailed compatibility list provided in the specifications section.
What's Included
Upon opening the package, you should find the following components:
- 1 x Tweeter Diaphragm (Cone)
- 2 x Screws (for mounting, if applicable to your specific speaker model)

Image: Front view of the HUMARH Tweeter Diaphragm assembly, showing the black conical phase plug and the two silver electrical terminals.
Installation (Setup)
Replacing a tweeter diaphragm requires careful handling and basic technical knowledge. If you are unsure, it is recommended to seek assistance from a qualified audio technician.
- Safety First: Before beginning, ensure the speaker system is completely disconnected from any power source. This prevents electrical shock and damage to the components.
- Access the Driver: Carefully remove the speaker grille and any other components necessary to gain access to the horn driver unit where the tweeter diaphragm is located. This may involve unscrewing the driver from the speaker cabinet.
- Disconnect Old Diaphragm: Identify the electrical terminals connected to the old diaphragm. Gently disconnect the wires, noting their polarity (positive and negative) if marked.
- Remove Old Diaphragm: The diaphragm is typically held in place by screws or a retaining ring. Unscrew or unclip the old diaphragm assembly. Handle it carefully to avoid damaging the driver's magnetic structure.
- Inspect Driver: Before installing the new diaphragm, inspect the driver's voice coil gap for any debris or foreign objects. Clean it gently with compressed air if necessary.
- Install New Diaphragm: Align the new HUMARH tweeter diaphragm with the driver's mounting points. Ensure the voice coil is centered within the magnetic gap without touching the sides.
- Secure Diaphragm: Fasten the new diaphragm using the provided screws or by re-engaging the retaining ring. Do not overtighten, as this can warp the diaphragm or damage the driver.
- Connect Electrical Wires: Reconnect the electrical wires to the new diaphragm's terminals, ensuring correct polarity. Incorrect polarity can lead to phase issues in your audio system.
- Reassemble Speaker: Carefully reassemble the speaker system, ensuring all screws are tightened and components are securely in place.

Image: Rear view of the diaphragm, illustrating the voice coil and mounting points.

Image: Top view, showing the conical phase plug and terminal layout.
Operation Considerations
Once installed, the tweeter diaphragm operates as part of your speaker's high-frequency driver. To ensure longevity and optimal performance:
- Impedance Matching: This diaphragm has a nominal impedance of 8 Ohm. Ensure it is compatible with your amplifier and crossover network to prevent damage to the amplifier or the speaker.
- Power Handling: Avoid overdriving the speaker system with excessive power, which can lead to distortion and potential damage to the tweeter diaphragm. Refer to your speaker's specifications for recommended power input.
- Audio Source Quality: Use high-quality audio sources and amplification to achieve the best sound reproduction and minimize strain on the speaker components.
Maintenance
The HUMARH tweeter diaphragm is a durable component, but proper care can extend its lifespan:
- Dust and Debris: Keep the speaker environment clean. Dust and debris can accumulate on the diaphragm and affect sound quality. Use a soft, dry brush or compressed air to gently remove any buildup.
- Moisture: The diaphragm is not waterproof. Avoid exposing the speaker to moisture, humidity, or direct liquid contact, as this can cause irreparable damage to the voice coil and diaphragm material.
- Physical Impact: Protect the speaker from physical impacts or vibrations that could dislodge or damage the diaphragm.
- Temperature Extremes: Avoid exposing the speaker to extreme temperatures, both hot and cold, as this can affect the material properties of the diaphragm.
Troubleshooting
If you experience issues after installing the new diaphragm, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from tweeter |
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| Distorted or harsh sound |
|
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| Intermittent sound |
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Specifications
| Feature | Detail |
|---|---|
| Brand | HUMARH |
| Product Type | Tweeter Diaphragm |
| Overall Diameter | 2.0" (50.8 mm) |
| Voice Coil Diameter | 1.26" (32 mm) |
| Nominal Impedance | 8 Ohm |
| Compatible Speaker Models (Partial List) | Electro Voice - EV DH3, DH2001, DH2005, DH2010, DH2010A, DH2305, FM1202, FM1502, SX80, SX100, SX200, SX300, SX500, SXA100, S122, S152, S1503ER, S1803ER, T22, T52, T53, T55, 81514, 81014, and others listed in product description. |
| Included Components | 1 x Cone, 2 Screws |
| Item Weight | 0.06 Kilograms (2.08 ounces) |
| Waterproof | No (FALSE) |
| Manufacturer | Shaoxing Kontive Drive Technology Co., Ltd |
Warranty Information
This HUMARH Tweeter Diaphragm comes with a Limited Warranty. For specific terms and conditions, please refer to the warranty documentation provided with your original purchase or contact the manufacturer directly. The warranty typically covers defects in materials and workmanship under normal use.
Customer Support
For further assistance, technical inquiries, or support regarding your HUMARH Tweeter Diaphragm, please contact the manufacturer or seller. You may also visit the official HUMARH store on Amazon for additional product information and resources:
Visit the HUMARH Store on Amazon
When contacting support, please have your product details and purchase information readily available.