
( Brand: Audio Research ), ( Manufacturer Part Number: EC-21 ), ( Country/region Of Manufacture: United States ), ( Type: Crossover )
Introducing the EC-21 Audio Research Tube Crossover, a high-end audio component designed for audiophiles seeking an unparalleled listening experience. This tube crossover is a masterpiece of engineering, crafted by Audio Research, a renowned name in the world of high-end audio.
The EC-21 is a three-way design crossover, specifically engineered to seamlessly divide the audio spectrum between the woofer, midrange, and tweeter drivers in a high-end audio system. It utilizes a combination of high-quality capacitors, inductors, and resistors to ensure a smooth and accurate frequency response. The use of tube-based circuitry adds a layer of warmth and musicality to the sound that is often missing in solid-state crossovers.
The heart of the EC-21 is its 6H30P tubes, which are known for their excellent linearity and low noise. These tubes are carefully selected and matched to ensure consistent performance across each unit. The tube crossover is hand-built in Audio Research's facility in Minneapolis, USA, ensuring the highest standards of quality control and craftsmanship.
The EC-21 is designed to be easy to install, with clear and well-documented instructions included. It features gold-plated binding posts for secure and reliable connections to your speaker drivers. The crossover is also built to last, with high-quality components that are designed to withstand the rigors of daily use.
In summary, the EC-21 Audio Research Tube Crossover is a must-have for any high-end audio system. It delivers a rich, warm, and musical sound that is unmatched by solid-state crossovers. With its hand-built construction, high-quality components, and easy installation, this tube crossover is a smart investment for any audiophile seeking the ultimate listening experience.
Pros of buying EC-21 Audio Research Tube Crossover:1. High-quality sound: The EC-21 is renowned for its excellent sound quality, which is primarily due to the use of Audio Research tubes. These tubes are known for their ability to provide a warm and detailed sound.
2. Customizable: The EC-21 allows users to customize the crossover network to suit their specific speakers and listening preferences. This customization can help improve the overall sound quality and performance of the audio system.
3. Durable and reliable: Audio Research is known for its high-quality craftsmanship, and the EC-21 is no exception. The crossover is well-built and should last for many years with proper maintenance.
4. Upgradable: The EC-21 uses high-quality components that can be upgraded over time. This means that users can improve the performance of their crossover as new and better components become available.
Cons of buying EC-21 Audio Research Tube Crossover:1. Expensive: The EC-21 is a high-end crossover that comes with a premium price tag. This may make it out of reach for some budget-conscious audio enthusiasts.
2. Complex setup: The EC-21 requires a more complex setup than some other crossovers on the market. This may be intimidating for some users who are not familiar with audio equipment.
3. Requires regular maintenance: Tube crossovers require regular maintenance to ensure that the tubes are functioning properly. This can be time-consuming and may require the services of a trained technician.
Conclusion:The EC-21 Audio Research Tube Crossover is a high-quality and customizable option for audio enthusiasts who are looking for superior sound quality. While it is expensive and requires more complex setup and maintenance than some alternatives, its durability, reliability, and upgradability make it a worthwhile investment for those who value superior audio performance.
Recommendation:If you are an audio enthusiast who is looking for a high-quality crossover that can provide superior sound quality, the EC-21 Audio Research Tube Crossover is a solid choice. However, be prepared to invest a significant amount of money and time in setting up and maintaining the crossover. If you are not comfortable with this, there are other crossover options available that may be more suitable for your needs and budget.
I can also provide to the winning bidder. I had hopes to rebuild this crossover back its original state but just do not have the time complete. Schematic is available from Audio Research. Unit is being offered as - what you see in the picture get.
Up for sale is an Audio Research EC-21 electronic crossover that being offered as a project unit. All of the major parts are here - chassis, circuit board, transformer, jacks, pots, etc.