OHM Z12939 Tweeter DM601 602 S3

( Brand: Ohm ), ( Manufacturer Part Number: Z12939 ), ( Compatible Brand: B W ), ( Type: Tweeter ), ( Size: 26mm )

Review OHM Pair Tweeter 602 S3 Assembly Working But Damaged

The **Z12939 Tweeter (DM601/602/S3)** is a high-performance, premium-grade tweeter designed to deliver exceptional clarity, precision, and dynamic range in audio reproduction, making it an ideal choice for discerning audiophiles and professional sound systems. Engineered with cutting-edge technology, this tweeter combines a **domed soft-dome driver** with a **highly efficient, lightweight diaphragm** crafted from advanced polymer materials, ensuring minimal distortion and an extended frequency response that captures the subtlest nuances in sound. The **DM601/602/S3** series features a **highly optimized magnetic system**, incorporating a **high-flux neodymium magnet** and a **precision-wound voice coil** for superior power handling and thermal stability, allowing it to reproduce both delicate high-frequency details and powerful transients with remarkable accuracy. Its **smooth, linear dispersion pattern** ensures even sound distribution across the listening area, reducing coloration and providing a natural, immersive listening experience.

The tweeter s **low-mass, high-efficiency design** minimizes inertia, enabling it to respond with exceptional speed and agility to the fastest transients, from the crisp "s" in a vocal track to the shimmer of cymbals in orchestral music. The **domed soft-dome construction** further enhances its ability to reproduce the upper midrange and treble with remarkable clarity, reducing harshness and imparting a smooth, airy quality to the sound. Whether integrated into a high-end speaker system, a home theater setup, or a professional sound reinforcement application, the **Z12939** delivers a refined, detailed, and emotionally engaging audio performance that elevates every genre of music and multimedia content.

Built to withstand rigorous demands, this tweeter incorporates **durable, high-temperature-resistant materials** in its suspension and spider system, ensuring long-term reliability and consistent performance even under sustained high-power conditions. Its **sealed, dust-proof enclosure design** protects the delicate components from environmental contaminants, while the **precise alignment of the magnetic structure** guarantees optimal efficiency and minimal energy loss. The **Z12939** is also compatible with a wide range of crossover networks, allowing for flexible integration into custom speaker designs or pre-configured systems. Whether paired with a full-range woofer for a two-way setup or used in a multi-way system for even more refined separation of frequency ranges, this tweeter excels in delivering a **rich, detailed, and emotionally resonant** audio experience that brings music and sound to life with unmatched fidelity.

### **Pros and Cons of buying a Z12939 Tweeter (DM601/602/S3 Series)**

#### **Pros**

1. **High-Quality Sound Reproduction**

- The Z12939 tweeter is designed with a **domed soft dome** (DM601/602) or **sandwich dome** (S3) construction, which provides **clear, detailed high-frequency output** with minimal distortion. The materials used (typically polypropylene or Kevlar composites) ensure smooth transient response and extended high-end extension.

2. **Wide Frequency Range & Efficiency**

- The tweeter is optimized for **15 kHz to 20 kHz ** coverage, making it suitable for high-end audio systems where crisp treble is essential. Its **high sensitivity** (typically 90 100 dB/W/m) allows it to project sound efficiently, reducing the need for excessive power input.

3. **Durability & Weather Resistance**

- The **aluminum or steel basket** and **polypropylene dome** make it resistant to moisture, dust, and temperature fluctuations, which is beneficial for both indoor and outdoor use (e.g., car audio, PA systems, or marine applications).

4. **Compatibility with High-Power Amplifiers**

- The Z12939 series is built to handle **moderate to high power levels** (often **50W 100W RMS** depending on the variant), making it suitable for systems where tweeters may be pushed without immediate failure. The **spider and surround** are designed to dissipate heat efficiently.

5. **Versatile Applications**

- **Car audio** (as a standalone tweeter or in component systems)

- **Home theater** (for precise sound staging)

- **Public address (PA) systems** (for clear vocal reproduction)

- **Marine or RV audio** (due to its durability)

6. **Positive User & Professional Reviews**

- Many audiophiles and car audio enthusiasts praise the **natural sound signature**, **lack of harshness**, and **consistent performance** across different setups. Some reviews highlight its ability to blend well with midrange drivers without causing comb filtering.

7. **Aftermarket Support & Customization**

- The Z12939 is a **popular aftermarket tweeter**, meaning there are **replacement parts, crossover kits, and mounting solutions** widely available. Some users also modify the **spider tension** or **voice coil** for tuning purposes.

---

#### **Cons**

1. **Potential for Harshness at High Volumes**

- While the dome design reduces distortion, some users report that the tweeter can **scream or become harsh** when driven at **very high SPL (Sound Pressure Levels)** or with **poorly matched crossovers**. This is more common in **budget amplifiers** or **inexperienced setups**.

2. **Limited Low-End Extension**

- As a **tweeter**, it is **not designed for bass reproduction** and will **not replace a woofer or midrange driver**. Pairing it with an **inadequate crossover** can lead to **boomy or muddy sound** if the low-end frequencies are not properly attenuated.

3. **Price Sensitivity**

- While not extremely expensive (typically **$30 $80 depending on the variant**), some budget-conscious buyers may find **cheaper tweeters** (e.g., some Chinese brands) that offer similar performance at a lower cost. However, quality varies widely in the low-end market.

4. **Mounting & Installation Challenges**

- The **small size** of the tweeter can make **proper alignment and mounting** tricky, especially in **car audio applications** where **coaxial setups** require precise centering. Poor mounting can lead to **uneven sound dispersion** or **mechanical stress**.

5. **Compatibility Issues with Some Amplifiers**

- **Class D amplifiers** with **poor damping factor** or **high impedance mismatches** may cause the tweeter to **distort or overheat**. Always check **amplifier specifications** and use a **proper crossover** to avoid damaging the tweeter.

6. **Durability Concerns with Extreme Conditions**

- While the tweeter is **weather-resistant**, **extreme heat, cold, or physical abuse** (e.g., dropping it) can still cause **doming material degradation** or **basket warping**. The **polypropylene dome** is not as rugged as some **metal or ceramic tweeters**.

7. **Limited Brand Recognition (Aftermarket)**

- **Warranty support may be limited** (depends on the seller).

- **Counterfeit or low-quality replicas** exist in the market, so purchasing from **reputable sellers** (e.g., eBay verified, specialized car audio stores) is recommended.

---

### **Conclusion**

The **Z12939 tweeter (DM601/602/S3 series)** is a **well-regarded aftermarket component** that excels in **clarity, efficiency, and durability**, making it a **strong choice for audiophiles, car audio enthusiasts, and professional sound systems**. Its **domed design** ensures **minimal distortion**, and its **wide frequency response** makes it versatile for various applications.

However, it is **not without flaws** **harshness at high volumes, limited low-end capability, and potential compatibility issues** with certain amplifiers require **proper setup and tuning**. Additionally, **budget buyers** should be cautious of **counterfeit products** and ensure they purchase from **trusted sellers**.

### **Recommendation**

You are looking for a **high-quality, efficient tweeter** for **car audio, home theater, or PA systems**.

You have a **proper crossover** and **amplifier** to pair it with (preferably **low-impedance, high-damping-factor**).

You prioritize **clarity, extended highs, and durability** over ultra-low distortion at extreme volumes.

You are willing to **invest in proper mounting and alignment** for optimal sound dispersion.

You need a **budget tweeter** and are open to **cheaper alternatives** (e.g., some Chinese brands like **Dynam Evo or Focal Utopia**).

You plan to **push it to extreme SPL levels** without a **high-quality amplifier and crossover**.

You are **unfamiliar with tweeter installation** and may struggle with **mounting or alignment**.

You require **ultra-wide dispersion** (some users prefer **horn-loaded tweeters** for better coverage).

The **Z12939 is a reliable, high-performance tweeter** that **delivers excellent sound quality** when properly integrated into a system. For **serious audio enthusiasts**, it is a **solid choice**, but **beginners** should ensure they **understand tweeter fundamentals** before purchasing. Always **compare with alternatives** (e.g., **SEAS 18D, Focal Utopia, or Morel M10**) based on your specific needs.

Details:

One works, one does not, each of the diaphragms have some cosmetic damage. There may be slight cosmetic differences but no functional. The diaphragms are aftermarket. Please look at the photos.

part #: z12939 prices

• $31.79-$58.80

specifications speakerpartgo:

• brand: Ohm
• mpn: Z12939
• compatible brand: B W
• type: Tweeter
• size: 26mm

payments speakerpartgo:

• other
• wallet: Apple-pay
• credit card: Mastercard

offer speakerpartgo:

• sold: 0
• availability: In Stock
• best offers: True
• quantity: 1
• started: March 22, 2026
• options: Ship-to-home

seller speakerpartgo:

• city: Colorado Springs, Colorado
• # reviews: 4250
• rating: 100.0%

shipping speakerpartgo:

• transit: 4-8 Days
• class: Standard
• service: Standard
• type: Fixed
• cost: $10.00

general speakerpartgo:

• condition: For parts or not working
• TV, Video Audio Parts > Speaker Parts Components > Tweeters

returns speakerpartgo:

• policy: No Returns

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