ET-6A

The Radioshack ET-6A Radio Optimus Pro-LX5 RCA Pro-LX55 40-5007 Linaeum Tweeter is a high-performance audio component designed to deliver clear and accurate sound in your home audio system. This tweeter boasts a sleek and compact design, making it an excellent choice for those looking to upgrade their existing speakers or build their own custom audio setup.

The Linaeum tweeter is a dome-type driver, which offers several advantages over other types of tweeters. Its shape provides a wide dispersion pattern, ensuring that sound waves reach every corner of your listening area evenly. This results in a more immersive and enveloping listening experience.

The tweeter features a titanium dome, which is both lightweight and rigid. This combination results in fast response times and the ability to handle high power levels without distortion. Additionally, the titanium dome is less susceptible to the effects of moisture and temperature changes, making it a durable choice for long-term use.

The ET-6A Radio Optimus Pro-LX5 RCA Pro-LX55 40-5007 Linaeum Tweeter comes with a high-frequency crossover network, which helps to ensure that only the appropriate frequency range is passed to the tweeter. This results in a smooth and balanced sound, with no unwanted distortion or muddiness.

The tweeter also includes a gold-plated binding post terminal, which provides a secure and reliable connection to your audio system. This ensures that the maximum amount of power is transferred to the tweeter, resulting in the best possible sound quality.

Overall, the Radioshack ET-6A Radio Optimus Pro-LX5 RCA Pro-LX55 40-5007 Linaeum Tweeter is a high-quality and versatile audio component that is perfect for those looking to enhance their home audio system. Its sleek design, fast response times, and durable titanium dome make it a top choice for audiophiles and music lovers alike.

The Radioshack ET-6A Radio Optimus Pro-LX5, RCA Pro-LX55, and 40-5007 Linaeum Tweeter are all components of a home audio system, specifically tweeters designed to produce high-frequency sounds. Let's evaluate each option based on their key features, advantages, and disadvantages:

- Affordable price point

- Dual-voice coil design for greater flexibility in system design

- 1-inch PEI dome tweeter for good dispersion and clarity

- Lower power handling capacity (3 watts RMS)

- May not be as durable as more expensive options

- Limited frequency response (3.5 kHz - 20 kHz)

- Wide frequency response (1.6 kHz - 25 kHz)

- 1-inch PEI dome tweeter with neodymium magnet for higher efficiency

- 4-ohm impedance, allowing for easier integration into various systems

- Slightly more expensive than the Radioshack option

- May require more power to drive effectively (10 watts RMS)

- Wide frequency response (1.5 kHz - 25 kHz)

- 0.75-inch aluminum dome tweeter with neodymium magnet for good efficiency

- 8-ohm impedance, making it versatile for various systems

- Lower power handling capacity (3 watts RMS)

- Slightly smaller diaphragm size, potentially affecting dispersion

In conclusion, all three tweeters offer good value for their respective price points, with the Radioshack ET-6A being the most affordable and the 40-5007 Linaeum Tweeter being the smallest. The RCA Pro-LX55 offers a good balance between performance and price, with a slightly wider frequency response and higher efficiency.

Based on the advantages and disadvantages listed above, the RCA Pro-LX55 appears to be the best overall option due to its wide frequency response, good efficiency, and versatile impedance. It offers a good balance between performance and affordability, making it a solid choice for those looking to upgrade their home audio system with a high-quality tweeter.

Details:

It has been tested and is in working order. I lightly blew it off with low pressure air, but some dust remains. Answer all questions as soon possible, usually within 24 hours. Purchase includes parts: 1 tweeter from PRO-LX5ii, part #et-6a nominal impedance 6 ohms, measured dc resistance 7.3 ohms.

This is a used piece of vintage electronics. I kindly request you.

specifications vintaspeaker:

• brand: Radioshack
• mpn: Et-6a
• model: Pro-lx5
• part type: Radio Tweeter

payments vintaspeaker:

• wallet: apple-pay
• credit card: diners-club
• other

shipping vintaspeaker:

• transit: 4-9 days
• class: economy, expedited
• service: economy, usps priority mail
• carrier: usps
• type: fixed

offer vintaspeaker:

• sold #: 10
• in stock #: 5
• started: december 14, 2025
• prices: $9.99–$100.00
• item condition:
  • New
  • Used
  • For parts or not working
• availability: in stock
• options: ship-to-home

seller vintaspeaker:

• city: st. george, utah
• rating: 100.0%
• # reviews: 2136

general vintaspeaker:

• category: Electronics > Audio Video > Vintage Speakers

returns vintaspeaker:

• policy: no returns

Similar To:

• 40-913B: RADIO SPEAKER, Radioshack
• 40-1310B: TWEETER, Radioshack
• XTS-40: RADIO SPEAKER BOX, Radioshack
• 40-1982: RADIO, Radioshack
• 33-1093A: RADIO, Radioshack
• 40-1988: RADIO, Radioshack
• 40-1346: RADIO SPEAKER GRILLE, Radioshack
• 49-5037: RADIO SPEAKER, Radioshack
• 43-231B: RADIO, Radioshack
• 40-2048: SPEAKER, Radioshack
• 40-1299: NETWORK RADIO CROSSOVER BOX, Radioshack