Description:

BK Butler’s MONAD A100 is a 300B Class A vacuum tube-driven monoblock power amplifier. Both RCA and true BALANCED precious metal plated input jacks of the highest quality are provided. The RCA input jack and the 5-way speaker output binding posts are top of the line Cardas. The 300B vacuum tube is proprietary Butler design and manufactured per our specifications. Sprague polypropylene capacitors, Vishay-Dale mil-spec 1% resistors are employed throughout the entire audio chain. Internal circuitry interconnections are positive military-type screw connectors utilizing #10 hardware.

Power Output:

The MONAD A100 is powered by a 700W toroid power transformer, which easily provides the necessary reserve power necessary for continuous operation. An exceptionally large heat exchange area on the internal heatsink is coupled into the large bulk and mass of the CNC custom chassis for remarkably cool operation. The MONAD A100 has reserve power capable of producing 200 Watts into 4 ohm loads. Therefore an appropriate source of 120VAC nominal input line voltage with a minimum current supply of 5A is required. 230-240 VAC models require approx. 50% of the current rating of 120V models.

Protection:

Listed below are the various types of internal protection provided for unexpected conditions:

1.AC input fuse for protection against any major system power fault. Do not replace with a fuse of higher current rating.

2.Thermistor-protected against AC input line transient voltage spikes and surges.

3.Soft-start vacuum tube filament warm-up: Provides safe, fully regulated, gentle turn-on 5.0 VDC for the 300B tube heater filament. This technique promotes longest tube life.

4.Turn-on and warm-up transient delay: This circuit will not allow the speaker relay to close (connect power module output to speaker posts) for a delay of approximately 5 - 8 sec. after turn-on. This provides for safe vacuum tube warm-up and output stabilization.

5.DC Offset Voltage at Speaker Output: Continuous monitoring circuit immediately opens the speaker relay upon the detection of any excessive DC voltage level.

6.Short circuit protection: This continuously active circuit becomes effective to the speaker output below a load of approx. 2 ohms. It will prevent a catastrophic over-current

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Butler Audio MONAD A100 manual Description, Power Output, Protection
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MONAD A100 specifications

Butler Audio has made a significant impact in the world of high-fidelity audio equipment, and the MONAD A100 amplifier is a prime example of their dedication to delivering outstanding sound performance. Designed with both audiophiles and casual listeners in mind, the MONAD A100 combines innovative technologies and exquisite craftsmanship to create a truly remarkable listening experience.

The heart of the MONAD A100 lies in its unique hybrid design. It employs a combination of tube and solid-state technologies, harnessing the warmth and richness of vacuum tubes while providing the power and reliability of solid-state components. This synergy allows the amplifier to deliver exceptional sound quality, offering a dynamic range that captures the finest details in any musical performance.

One of the standout features of the MONAD A100 is its power output. With an impressive rating of 100 watts per channel into 8 ohms, the amplifier is capable of driving a wide range of loudspeakers, from efficient bookshelf models to demanding floor-standing designs. This versatility ensures that users can enjoy their music at any volume without compromising sound quality.

The MONAD A100 also incorporates advanced circuitry to minimize distortions and enhance the overall audio experience. It features high-quality capacitors and resistors, meticulously chosen for their performance characteristics. Additionally, the use of a low-negative feedback design helps preserve the integrity of the audio signal, resulting in a more natural and lifelike sound reproduction.

Connectivity is another strong suit of the MONAD A100. It comes equipped with multiple line-level inputs, making it compatible with a variety of sources, including CD players, digital audio players, and turntables. The amplifier also includes a robust output stage designed to deliver high current, ensuring optimal performance with even the most challenging speaker loads.

Aesthetically, the MONAD A100 is a harmonious blend of modern design and classic elegance. Its chassis is constructed from high-grade aluminum, with a stylish finish that complements any audio setup. The front panel features intuitive controls, allowing users to adjust settings effortlessly while providing a visually appealing interface.

In summary, the Butler Audio MONAD A100 amplifier exemplifies cutting-edge technology and impeccable design. With its hybrid tube and solid-state construction, substantial power output, advanced circuitry, and versatile connectivity options, it stands out as a premier choice for anyone seeking to elevate their audio experience. Whether you are listening to classical symphonies or contemporary rock, the MONAD A100 promises to deliver sound quality that is both rich and immersive.
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