Cable Quality, Marvelous Vacuum Tube

Cable Quality:

Within reasonable limits, it has been our experience that you get what you pay for in cables. A good set of shielded input connection cables coupled with large gauge, high quality low-loss speaker wire is well worth the investment. Do not degrade the remarkable performance of your amplifier with inferior connecting cables.

The Marvelous Vacuum Tube:

Triode Vacuum Tubes were the first method of practical audio amplification patented in 1907 by Lee De Forest. At first, he used an open flame to produce thermionic emissions, but later found an electrically heated filament was much more practical.

The first triodes were inefficient and often very mismatched in performance. Thankfully we now have reliable sources of precision manufactured triode tubes, which are very consistent in quality and performance.

Over the years, BK Butler has experimented with virtually every type of audio vacuum tube. In 1992 he obtained a large Vacuum Tube Analyzer formerly used by the FAA to test and analyze radar tubes for aviation control towers. This old but very high-quality apparatus enabled him almost unlimited control to adjust and experiment with virtually every conceivable parameter of any tube. For example, input and output pins could be reassigned. B+ voltages and bias currents switched to any desired value or configuration. During these test, it was noted that a Phantom voltage was being generated.

It turned out to be nothing less than the original thermionic effect that one of Edison's assistant technicians (a Mr. Hammer) discovered in the late 1800's while testing early light bulbs. He noted a blue glow around the positive pole in a vacuum bulb and a blackening of the wire and the bulb at the negative pole. At first, this was referred to as "Hammers Phantom Shadow", but later Edison took credit for the discovery himself (as was his practice) and re dubbed it as "Thermionic Emission". More tests followed and soon the first vacuum tube diode was invented. Limited at first to rectifying AC into DC, Edison failed to make the one essential step needed for tubes to achieve useful amplification.

However, around 1906, Lee De Forest vastly improved the

2-electrode vacuum tube diode by adding the crucial element: a third electrode, or control grid. The rest is history. The successful invention of the amplifying vacuum tube triode, which could regulate the thermionic emissions of electrons from heated cathode, became the foundation for our modern electronics industry. Without De Forest's great insight and marvelous discovery, you would probably not be enjoying your new Butler Audio amplifier!

TDB 3150 specifications

The Butler Audio TDB 3150 is a groundbreaking power amplifier that redefines the standards of audio performance in home and professional setups. Crafted with precision, this amplifier is celebrated for its unique combination of high output power, innovative technology, and exceptional sound quality.

At its core, the TDB 3150 is a three-channel amplifier that utilizes Butler Audio's proprietary hybrid technology. This technology integrates both solid-state and vacuum tube components, allowing the amplifier to produce a rich, warm sound typically associated with tube amplification while maintaining the clarity and oomph of solid-state designs. This blend results in a sonic experience that is both immersive and dynamic.

One of the most notable features of the TDB 3150 is its considerable power output, rated at 150 watts per channel into 8 ohms. This robust power enables the amplifier to drive a wide range of speakers effectively, delivering effortless sound reproduction even at high volumes. Additionally, the TDB 3150 offers exceptional headroom, allowing for a clean transition during dynamic passages of music or film soundtracks without distortion.

The amplifier also comes equipped with advanced thermal management systems, ensuring that it remains cool and performs optimally even under strenuous conditions. This is particularly important for users who demand reliability during extended listening sessions or in high-demand environments like studios or live sound situations.

Another key characteristic of the TDB 3150 is its sleek design and user-friendly interface. Featuring a minimalist aesthetic, it fits seamlessly into any audio setup without being an eyesore. Furthermore, the amplifier includes a comprehensive range of input options, including balanced XLR and unbalanced RCA connections, making it compatible with various audio sources.

Additionally, the TDB 3150 is built with high-quality components and meticulous attention to detail, ensuring durability and longevity. Its construction reflects Butler Audio's commitment to engineering excellence, promising years of reliable performance.

For audiophiles and sound professionals seeking an amplifier that merges the best of both worlds—tube warmth and solid-state power—the Butler Audio TDB 3150 is a standout choice. Its impressive specifications, advanced technology, and aesthetic appeal make it a worthy addition to any audio system, delivering an unparalleled listening experience that captivates the senses.