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  3. YAMAHA 3H91S

YAMAHA 3H91S Tweeter 377797 6OHMS 1.75

377797 Yamaha 3h91s Tweeter 6ohms 1.75 Inch Genuine Replacement Part

( Brand: Yamaha ), ( Manufacturer Part Number: 3H91S ), ( Compatible Brand: For Yamaha ), ( Type: Tweeter ), ( Unit Type: Unit ), ( Size: 1.75 ), ( Compatible Model: Satellite Speakers Ns Series )

Review YAMAHA Tweeter 6ohms 1.75 Inch Genuine Replacement Part

The **Yamaha 3H91S** is a high-performance tweeter designed to deliver exceptional clarity, precision, and dynamic range in audio reproduction, making it an ideal choice for discerning audiophiles and professional sound engineers alike. Part of Yamaha s renowned **3H series**, this dome tweeter combines cutting-edge technology with meticulous craftsmanship to achieve unparalleled sound quality in high-end speaker systems, headphones, and custom audio applications. With a **6-ohm impedance** and a **1.75-inch (377797) dome driver**, the 3H91S excels in reproducing the highest frequencies with remarkable accuracy, ensuring crisp, airy treble that remains free from distortion even at high volumes. Its **high-efficiency design** allows for a broad dispersion pattern, making it versatile for both near-field and far-field applications, while its **lightweight yet durable dome** ensures rapid response and minimal ringing, delivering a smooth, extended frequency range with exceptional transient clarity.

The tweeter s **optimized motor structure** features a robust magnet system and a precision-wound voice coil, which work in tandem to minimize thermal and mechanical stress, ensuring long-term reliability and consistent performance. Yamaha s **advanced dome material** is engineered to resist fatigue and maintain structural integrity under prolonged use, further enhancing durability without compromising acoustic precision. The **low-mass diaphragm** enables the tweeter to track high-frequency signals with remarkable speed and accuracy, capturing the subtleties of vocal performances, cymbal crashes, and intricate instrumental details with remarkable fidelity. Whether integrated into a high-end bookshelf speaker, a custom headphone driver, or a professional monitoring system, the 3H91S elevates the listening experience by revealing the full spectrum of audio with unprecedented clarity and depth.

For audiophiles seeking a tweeter that bridges the gap between studio-grade performance and home audio excellence, the **Yamaha 3H91S** stands out as a benchmark in high-frequency reproduction. Its **6-ohm impedance** makes it compatible with a wide range of amplifiers, from high-power tube amps to modern solid-state systems, while its **compact yet robust build** ensures seamless integration into speaker enclosures of varying sizes. The tweeter s **extended frequency response** often pushing beyond 20 kHz reveals the nuances of digital audio and high-resolution recordings, making it a favorite among audiophiles who demand nothing less than perfection. Whether used in a custom-built system or as part of a pre-assembled speaker, the 3H91S delivers a sound that is both exhilarating and immersive, proving that Yamaha s commitment to innovation and quality remains unmatched in the world of high-fidelity audio.

### **Pros and Cons of buying a Yamaha 3H91S Tweeter (Part No. 377797, 6 , 1.75")**

#### **Pros:**

1. **High-Quality Sound Reproduction** The 3H91S is a dome tweeter designed for clarity and precision in the high-frequency range, making it suitable for high-end audio systems. Its dome material (likely polypropylene or similar) provides smooth, extended treble with minimal distortion.

2. **Durability and Build Quality** Yamaha is known for robust construction, and this tweeter is built to withstand high SPL (sound pressure levels) without excessive wear. The 6 impedance is standard for many amplifier setups, offering flexibility in wiring.

3. **Wide Dispersion Pattern** The 1.75" size and dome design provide a broad coverage angle, making it ideal for full-range systems or as part of a component speaker setup where even high-frequency distribution is desired.

4. **Compatibility with Yamaha Systems** If you re expanding or repairing a Yamaha speaker system (e.g., HS50M, HS80M, or other component speakers), this tweeter is a direct replacement part, ensuring seamless integration.

5. **Reliable Brand Reputation** Yamaha s audio components are widely trusted for longevity and performance consistency. The 3H91S is a proven tweeter used in professional and high-end consumer applications.

6. **Cost-Effective for Performance** Compared to some high-end tweeters, this offers excellent value for its specifications, making it a practical choice for audiophiles or DIY enthusiasts.

7. **Minimal Distortion at High Frequencies** The design reduces cone breakup and ensures a clean, detailed treble response, which is critical for music and critical listening applications.

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#### **Cons:**

1. **Limited Extreme High-Frequency Extension** While the 3H91S delivers excellent clarity, it may not match ultra-high-end tweeters (e.g., some from Focal, Seas, or Harman Kardon) in terms of absolute top-end extension or airy detail. It s very good but not exceptional in this regard.

2. **6 Impedance Requires Careful Amplifier Matching** While 6 is common, some amplifiers (especially those with lower power reserves) may struggle to drive it efficiently without clipping. Ensure your amp can handle the tweeter s power handling (typically 100W 150W RMS for this model).

3. **Not Ideal for Extreme SPL Applications** While durable, it s not designed for professional PA systems or high-power car audio where continuous high SPL could stress the driver over time.

4. **Replacement Parts Availability** While Yamaha parts are widely available, older models or discontinued systems might require sourcing from specialty suppliers, which could be inconvenient.

5. **No Magnetic Shielding** If you re using this in a sensitive environment (e.g., near sensitive electronics), the lack of magnetic shielding could be a minor concern, though it s unlikely to cause issues in most setups.

6. **Potential for Wear Over Time** Like all tweeters, prolonged exposure to high volumes or poor acoustic environments can lead to wear. The dome material may degrade if not properly protected (e.g., from dust or physical damage).

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### **Conclusion:**

The Yamaha 3H91S tweeter is a **highly capable, reliable, and versatile component** that excels in clarity, durability, and compatibility with Yamaha systems. It s an excellent choice for:

- **Component speaker setups** where you want a smooth, detailed treble response.

- **DIY audio projects** where you need a proven, easy-to-find part.

- **Upgrading or repairing Yamaha speakers** without sacrificing performance.

- **Home audio or car audio applications** where high-quality treble is prioritized.

However, if you re seeking **ultra-extended high frequencies** or **extreme SPL handling**, you might consider higher-end alternatives. For most users, the 3H91S strikes a **strong balance between performance, cost, and reliability**.

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### **Recommendation:** **Buy the Yamaha 3H91S tweeter if:**

- You need a **reliable, high-quality tweeter** for a Yamaha system or a component setup.

- You prioritize **clarity, durability, and ease of use** over absolute top-end extension.

- You re working within a **budget-conscious yet performance-oriented** approach.

**Consider alternatives if:**

- You require **ultra-high-frequency extension** (e.g., for critical listening or audiophile applications).

- You re using it in a **high-SPL environment** (e.g., car audio or PA systems) where extreme durability is needed.

- You prefer **magnetic shielding** or other advanced features.

**Final Verdict:** The 3H91S is a **solid, well-rounded tweeter** that delivers excellent performance for its price and is ideal for most users who value Yamaha s reputation for quality. It s a **safe and practical choice** for upgrading or maintaining a speaker system.

Details:

COMPATIBILITY Several model's Are Compatible With This Item, Please Refer To The Manual For Correct Compatibility, And Better Information. CONDITION: USED item has been previously used.

part #: 3h91s prices

  • $10.00-$11.00

specifications speakerpartgo:

  • brand: Yamaha
  • mpn: 3h91s
  • compatible brand: For Yamaha
  • type: Tweeter
  • unit type: Unit
  • size: 1.75
  • compatible model: Satellite Speakers Ns Series

shipping speakerpartgo:

  • type: Fixed
  • transit: 4-11 Days
  • cost: $5.75
  • carrier: USPS
  • service: USPS Ground Advantage
  • class: Standard

seller speakerpartgo:

  • # reviews: 915
  • rating: 100.0%
  • city: Cedar Hill, Texas

payments speakerpartgo:

  • wallet: Apple-pay
  • credit card: Mastercard
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general speakerpartgo:

  • condition: Used
  • TV, Video Audio Parts > Speaker Parts Components > Tweeters

offer speakerpartgo:

  • sold: 0
  • started: May 4, 2026
  • options: Ship-to-home
  • best offers: True
  • availability: In Stock
  • quantity: 4

returns speakerpartgo:

  • time: 14 Days
  • method: Money back
  • policy: Returns Accepted
  • paid by: Buyer
compatible brand: for yamaha, type: tweeter, unit type: unit, size: 1.75, compatible model: satellite speakers ns series,
category: electronics > tv, video audio parts > speaker parts components > tweeters, sku: 13630953966194752,
Yamaha 3H91S Is Similar To:
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2 offers $10.00–$11.00 USD
  • Used. Offer #1 priced at $10.00 + $5.75 shipping estimate = $15.75* total. COMPATIBILITY Several Models Are Compatible With This Item, Please Refer To The Manual For Correct Compatibility, And Better Information CONDITION :USED item has been previously used.+$5.75 shipping
  • Used. Offer #2 priced at $11.00 + $5.75 shipping estimate = $16.75* total. +$5.75 shipping

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