AD1720

SPEAKER, Philips

1 offer available: $19.95
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AD1720 Comparison

AD1720 in Used Condition
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Philips AD-1720 5.5-inch Inverted Cone Alnico Speaker 3 Ohm 1958 Full Range-USED Details$19.95Condition is Used, Philips AD-1720 5.5-inch Inverted Cone Alnico Speaker 3 Ohm 1958 Full Range-USED, shipping cost = $14.95100.0%
AD1720 PHILIPS Inverted Cone Alnico Speaker

The Philips AD1720, also known as the AD-1720, is a vintage 5.5-inch inverted cone Alnico speaker from the Philips 1958 range. This speaker is a rare and valuable addition to any audio enthusiast's collection, boasting a rich, warm sound that is uncommon in modern speakers.

The AD1720 is characterized by its inverted cone design, which provides superior bass response and improved power handling capabilities. The use of Alnico magnets, a high-quality material known for its magnetic strength and stability, ensures a clear and accurate sound reproduction across the entire frequency spectrum.

This speaker features a paper cone with a copper voice coil, both of which are common in high-end vintage speakers. The paper cone is lightweight and rigid, allowing for quick and efficient response to audio signals. The copper voice coil, on the other hand, conducts electricity effectively and dissipates heat efficiently, ensuring stable and consistent performance.

The AD1720 also comes with a sturdy metal basket that provides excellent structural support, preventing the speaker cone from deforming under high power levels. The speaker terminals are securely screwed onto the basket, ensuring a reliable connection between the speaker and the amplifier.

The overall dimensions of the speaker are approximately 13.5 cm (5.3 inches) in diameter and 8.5 cm (3.3 inches) in height. The weight of the speaker is approximately 750 grams (1.7 pounds), making it a manageable size for most applications.

This speaker is in used condition and may show signs of wear, such as scuffs, scratches, or small tears in the cone material. However, these imperfections do not affect the functionality of the speaker and are part of its unique character as a vintage piece. The speaker is tested and functioning properly, producing a warm and rich sound that is reminiscent of the golden age of audio technology.

In conclusion, the Philips AD1720 is a valuable and unique vintage speaker that is sure to impress any audio enthusiast. Its inverted cone design, Alnico magnet, and high-quality paper cone and copper voice coil all contribute to its rich and warm sound reproduction capabilities. Despite being in used condition, this speaker is fully functional and a beautiful addition to any vintage audio setup.

Pros and Cons of Buying a Used Philips AD1720 5.5-inch Inverted Cone Alnico Speaker (1958 Range)

1. **Authentic Vintage Sound**: This speaker, being from the 1950s, offers a unique and authentic sound that is hard to find in modern speakers. The Alnico magnets used in these speakers are known for their warm and detailed sound.

2. **Historical Value**: For music enthusiasts and collectors, owning a vintage speaker like the Philips AD1720 can be a source of pride and adds historical value to their collection.

3. **Durability**: Alnico speakers, like the Philips AD1720, are known for their durability. The materials used in their construction, such as the Alnico magnets and paper cones, are less prone to wear and tear compared to modern speakers.

4. **Limited Compatibility**: The Philips AD1720 is an older speaker model, which may limit its compatibility with modern audio equipment. It may require specific amplifiers or adapters to work properly.

5. **Potential for Issues**: Buying a used speaker, especially a vintage one, increases the risk of encountering issues. The speaker may require repairs or restoration, which can add to the overall cost.

6. **Size and Weight**: The 5.5-inch size and the use of Alnico magnets make these speakers heavier and larger than modern speakers. This can make them more difficult to transport and install.

7. **Cost**: Vintage speakers, especially those with historical value like the Philips AD1720, can be quite expensive. The cost of buying a used one may be higher than buying a new speaker.

Conclusion:

The Philips AD1720 5.5-inch Inverted Cone Alnico Speaker (1958 Range) offers a unique sound and historical value that is hard to find in modern speakers. However, it also comes with limitations such as compatibility issues, potential for issues, larger size and weight, and higher cost. If you are a music enthusiast or collector and are willing to deal with these limitations, then buying this speaker could be a rewarding experience. If you prioritize ease of use, affordability, and modern features, then it might be best to consider a newer speaker model.

Recommendation:

If you are interested in buying the Philips AD1720 speaker, it is recommended that you thoroughly research its compatibility with your current audio setup and budget for any potential repair or restoration costs. You may also want to consider purchasing it from a trusted seller to minimize the risk of receiving a damaged or faulty speaker. If you decide that the vintage speaker experience is not for you, there are plenty of modern speaker options that offer more compatibility, ease of use, and affordability.

Details:

The measured resonance peak at 120 Hz is 6 db. Piss res freq imp size diam weight. Very low sensitivity class, 6,800 Gauss / 9,500 Maxwell, efficiency is 2%. Alnico-magnet, cone is damage-free and smooth.

Vintage Philips AD-1720 5.5-inch speaker 3 ohm - late 1950s full range, full-range loudspeaker driver commonly found in reel-to-reel tape recorders and other audio equipment from the late 50s to early 1960s, a shallow, inverted. Tests at 3.0 ohms, rated 6 watts max.

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rating: 100.0% out of 100 based on 250 user ratings.
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