
B25J Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.99 | Condition is For parts or not working, Audax Polydax 6.5" Speaker HD17B25J 8 ohm 6.54 inch Woofer #4, FREE SHIPPING | 99.5% |

The Audax B25J HD20 Jennings Research Speakers are a high-performance audio solution designed for music and home theater enthusiasts seeking an authentic and immersive sound experience. These woofers, part of the larger Audax B25J HD20 series, are the creation of renowned audio engineer, Dr. Paul G. Jennings.
Each woofer features a 20-inch cone, made from a proprietary blend of paper pulp and other natural fibers, resulting in exceptional rigidity and durability. The cone is also treated with a unique coating that enhances its damping properties, reducing unwanted resonances and improving overall sound quality.
The voice coil in these woofers is made from aluminum, which is lighter and more efficient than traditional copper voice coils. This design results in faster response times and improved power handling capabilities, allowing the speakers to deliver dynamic and powerful bass with exceptional clarity and detail.
The Audax B25J HD20 Jennings Research Speakers are designed to be used in a variety of applications, from home theater systems to professional recording studios. They incorporate advanced technologies, such as neodymium magnets and copper-clad aluminum wire voice coils, which contribute to their high power handling capacity and ability to reproduce complex audio frequencies with remarkable accuracy.
These woofers also boast a high-frequency crossover, meticulously designed by Dr. Jennings himself, ensuring seamless integration with other components in a multi-driver system. The crossover's components are carefully selected and hand-wired, ensuring the highest possible sound quality and reliability.
The Audax B25J HD20 Jennings Research Speakers are not just about raw power and performance; they are also aesthetically pleasing. Their vintage-inspired design, with its exposed wood veneer cabinet and vintage-style grille cloth, adds a touch of elegance and character to any room they're placed in.
In summary, the Audax B25J HD20 Jennings Research Speakers are a high-end audio solution for those who value authentic, dynamic, and immersive sound. With their advanced design, top-tier components, and vintage aesthetic, these woofers are sure to please even the most discerning of audiophiles.
The Audax B25J HD20 Jennings Research Speakers are a popular choice among audiophiles due to their high-quality sound and design. Here are some pros and cons of buying these speakers to help you make an informed decision:
Pros:1. High-Fidelity Sound: The Audax B25J HD20 speakers are known for their accurate and detailed sound reproduction. They are capable of delivering a wide frequency response range, ensuring that you get to enjoy every detail of your music.
2. Sensitively Designed: The speakers are designed with sensitivity in mind, making them ideal for use in a variety of listening environments. They can be easily driven by most amplifiers, allowing you to achieve optimal sound quality without the need for high power.
3. Durable Construction: The speakers are built to last, with a heavy-duty cabinet made from MDF and high-quality components. They can withstand the rigors of regular use and are less likely to develop issues over time.
Cons:1. Expensive: The Audax B25J HD20 speakers are not the most affordable option on the market. They are priced higher than many other speakers due to their high-end components and design.
2. Bulky: The speakers are quite large and heavy, making them less ideal for those with limited space or mobility. They may also require additional support or bracing to ensure stability.
3. Complex Setup: These speakers require a more complex setup than some other options. They may require additional components, such as crossovers or bi-amping equipment, to achieve optimal sound quality.
Conclusion:The Audax B25J HD20 Jennings Research Speakers offer exceptional sound quality, durability, and sensitivity. However, they come with a higher price tag and require a more complex setup than some other options. If you are an audiophile looking for a high-quality speaker system and have the budget and space for it, then these speakers are definitely worth considering.
Recommendation:If you are looking for a high-end speaker system with accurate sound reproduction and durable construction, then the Audax B25J HD20 Jennings Research Speakers are an excellent choice. However, if you are on a tighter budget or have limited space, then you may want to consider other options that offer similar sound quality but are more affordable or compact. Ultimately, the decision comes down to your individual needs and preferences.
Details:
Removed functional from a vintage jennings research speaker. These are the rare Audax HD20 B25J model's also used in tangent acoustic series rs2, rs4 and rs6.
specifications vintaspeaker:
- brand: Audax
- mpn: B25j
- model: Hd20 B25j
- part type: Speaker
- country/region of manufacture: France
seller vintaspeaker:
- city: algonquin, illinois
- rating: 99.3%
- # reviews: 188
offer vintaspeaker:
- price: $49.99
- item condition: For parts or not working
- options: ship-to-home
- availability: in stock
- sold #: 12
- in stock #: 1
- started: august 14, 2025
general vintaspeaker:
- category: Electronics > Audio Video > Vintage Speakers
shipping vintaspeaker:
- carrier: usps
- class: standard
- transit: 4-9 days
- service: usps ground advantage
- type: calculated
payments vintaspeaker:
- wallet: paypal
- other
- credit card: mastercard
returns vintaspeaker:
- policy: no returns
