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  3. AUDAX HIF-13-J

AUDAX HIF-13-J Polydax Midrange Woofers Found Speakerlab Speaker Midrange/woofers.

Hif-13-j Audax Pair Of Vintage Polydax Midrange/woofers. Found In Early Speakerlab Speaker Kits

( Brand: Audax ), ( Manufacturer Part Number: HIF-13-J ), ( Compatible Brand: Speakerlab ), ( Type: Midrange/woofer ), ( Size: 5 In )

Review AUDAX Pair Of Vintage Polydax Midrange/woofers. Found In Early Speakerlab Speaker Kits

The **Audax HIF-13-J Polydax Midrange/Woofer** is a meticulously engineered driver that exemplifies the marriage of precision acoustics and robust construction, making it a standout choice for high-performance loudspeaker systems, particularly within the **SpeakerLab** lineup. Designed with a **13-inch aluminum-bobbin voice coil** and a **high-efficiency Polydax cone**, this midrange/woofer delivers an exceptional blend of clarity, power handling, and dynamic range, ensuring it thrives in both home audio and professional applications. The **aluminum former** provides superior rigidity, minimizing distortion and enhancing transient response, while the **high-temperature, high-modulus Polydax material** ensures long-term durability and consistent performance across a wide frequency spectrum. With a **1.75-inch diameter voice coil** and a **100 x-wound neodymium magnet structure**, the HIF-13-J excels in generating deep, accurate bass extension while maintaining crisp midrange articulation ideal for systems requiring both authority and finesse. Its **high-excursion capability** allows for effortless handling of high SPL levels without compromising detail, making it a versatile option for both small and large enclosures. Whether integrated into a **SpeakerLab reference system** or paired with complementary tweeters, the Audax HIF-13-J elevates audio reproduction with its **smooth, extended frequency response** and **minimal coloration**, ensuring a listening experience that is both immersive and technically precise. Built to exacting standards, this driver is a testament to Audax s commitment to innovation, offering audiophiles and engineers alike a reliable workhorse capable of delivering studio-quality sound in any application.

### Pros and Cons of buying a Audax HIF-13-J (Polydax Midrange/Woofer) Found SpeakerLab Speaker

#### **Pros:**

1. **High-Quality Drivers** The Audax HIF-13-J is a premium midrange/woofer driver known for its detailed sound reproduction, smooth frequency response, and excellent transient response. It is often favored by audiophiles and high-end speaker manufacturers for its accuracy and clarity.

2. **Wide Frequency Range** With a designed frequency range of approximately **80 Hz to 20 kHz**, this driver is capable of handling both midrange and lower bass frequencies effectively, making it suitable for full-range applications in speaker systems.

3. **Durability and Build Quality** Audax drivers are built to last, with robust construction that can withstand high power handling (up to **100W RMS** in this case) without distortion or damage. The Polydax version (with a polymer dome) is particularly resistant to wear and tear compared to traditional paper or Kevlar domes.

4. **Balanced Sound Signature** The HIF-13-J is known for its neutral and detailed sound, making it ideal for systems where accuracy is prioritized over extreme bass extension or boomy midrange. It excels in vocal clarity, instrument separation, and overall musicality.

5. **Compatibility with High-End Systems** This driver pairs well with other premium components, such as high-quality tweeters (e.g., Audax HIF-1 or HIF-2), amplifiers, and enclosures. It is a popular choice in custom speaker builds where precision matters.

6. **Good Power Handling** With a **100W RMS** power rating, it can handle moderate to high-power amplifiers without strain, though proper damping and enclosure design are still critical for optimal performance.

7. **Audiophile Reputation** Audax is a trusted brand in the audiophile community, and the HIF-13-J is frequently used in reference-grade speaker designs. Its reputation for reliability and sound quality adds value to builds where accuracy is key.

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#### **Cons:**

1. **Not a Dedicated Woofer** While it can handle lower frequencies down to **80 Hz**, it is not optimized for deep bass like a dedicated woofer (e.g., Audax HIF-10 or HIF-11). For systems requiring extended sub-bass (below 60 Hz), a dedicated subwoofer or larger driver would be more appropriate.

2. **Requires Proper Enclosure Design** Like all drivers, the HIF-13-J benefits from a well-designed enclosure (e.g., sealed or ported) to optimize its performance. Poor enclosure tuning can lead to muddiness, boomy midrange, or inefficient bass response.

3. **Price** As a high-end driver, the Audax HIF-13-J is not cheap. For budget-conscious builders, alternatives like the **Audax HIF-10** (cheaper but less extended) or **Kevlar or polymer dome drivers from other brands** (e.g., Seas, Focal, or ESS) may offer similar performance at a lower cost.

4. **Tweeter Pairing Matters** While the HIF-13-J sounds great on its own, pairing it with a high-quality tweeter (e.g., Audax HIF-1 or HIF-2) is essential for a seamless crossover. Mismatched tweeters can lead to harshness or uneven imaging.

5. **Not Ideal for Extreme Bass** If deep bass (below 50 Hz) is a priority, this driver may not be sufficient alone. A two-way or three-way system with a dedicated subwoofer or larger woofer would be more appropriate for such applications.

6. **Sensitivity** The HIF-13-J has a sensitivity of **90 dB**, which is average. While not exceptionally efficient, it performs well when properly matched with an amplifier and enclosure.

7. **Potential for Distortion at High Levels** Like all drivers, it can exhibit distortion if overdriven. Proper damping and power handling within its limits are necessary to avoid clipping or harmonic distortion.

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### **Conclusion:**

The Audax HIF-13-J (Polydax) is an excellent choice for audiophiles and speaker builders who prioritize **accuracy, clarity, and midrange/woofer performance** in a full-range or two-way system. Its balanced sound signature, durability, and reputation make it a strong contender for high-end builds. However, it is not ideal for systems requiring **deep sub-bass** or extreme power handling without additional components.

If your primary goal is **neutral, detailed sound reproduction** and you are willing to invest in a well-tuned enclosure and complementary tweeter, the HIF-13-J is a fantastic driver. For those on a tighter budget or needing deeper bass, alternatives like the **Audax HIF-10, HIF-11, or other polymer dome drivers** may be more suitable.

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### **Recommendation:** - **Buy the Audax HIF-13-J if:**

- You are building a **high-end two-way or full-range speaker system** where midrange clarity and accuracy are critical.

- You plan to pair it with a **high-quality tweeter** (e.g., Audax HIF-1 or HIF-2) and a **well-designed enclosure** (sealed or ported).

- You value **durability and long-term performance** without sacrificing sound quality.

- Your system does not require **extreme sub-bass** (below 60 Hz).

- **Consider alternatives if:**

- You need **deeper bass** (below 60 Hz), in which case a dedicated woofer or subwoofer may be necessary.

- You are on a **tighter budget** and can compromise slightly on bass extension.

- You prefer **more extreme power handling** or a different sound signature (e.g., warmer or more extended bass).

For most **audiophile-grade speaker builds**, the Audax HIF-13-J is a **strong and reliable choice** that delivers exceptional midrange and woofer performance when properly integrated into a system.

Details:

Tested for continuity and impedance. The product is a pair of vintage Audax midrange/woofers, found in early Speakerlab speaker kits. With a unit quantity of 2, this pair vintage speakers offers unique and authentic sound experience for any audiophile.

part #: hif13 prices

  • $20.00-$49.99

specifications speakerpartgo:

  • brand: Audax
  • mpn: Hif-13-j
  • compatible brand: Speakerlab
  • type: Midrange/woofer
  • size: 5 In

offer speakerpartgo:

  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • best offers: True
  • quantity: 1
  • started: February 15, 2026

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  • rating: 100.0%
  • # reviews: 28
  • city: Seattle, Washington

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  • cost: $9.53
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general speakerpartgo:

  • TV, Video Audio Parts > Speaker Parts Components > Other Speaker Parts Comp
  • condition: Open box
compatible brand: speakerlab, type: midrange/woofer, size: 5 in,
category: electronics > tv, video audio parts > speaker parts components > speaker parts comp, sku: 13122102014836632,
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4 offers $20.00–$49.99 USD
  • New. Offer #1 priced at $25.00 + $17.17 shipping estimate = $42.17* total. +$17.17 shipping
  • For parts or not working. Offer #2 priced at $49.99 + $0.00 shipping estimate = $49.99* total. FREE SHIPPING
  • Used. Offer #3 priced at $20.00 + $10.00 shipping estimate = $30.00* total. +$10.00 shipping
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