Manley Labs 120 Watt Monoblock Amplifier manual

CONNECTING YOUR AMPLIFIER

IMPORTANT: PLUG IN THE TUBES.

We do not ship the amps with the output tubes inserted to prevent breakage. Before plugging in anything, locate the 2 tubes (KT-90s or 6550s) packed with the amp and insert them in the two large tube sockets. The sockets are marked 1 and 2, the tubes are marked 1 and 2 - Put 1 in 1 and 2 in

2.This configuration is how the amps were tested and adjusted. Otherwise you will have to re-bias. You should remove these little labels from the tubes and amp chassis as they are not needed now and they may bake on permanently if the amp is run for a reasonable amount of time with them on. Verify that the smaller tubes are sitting straight in their sockets.

Setting up your amplifier is rather easy.

1. Connect all source components (turntable, CD, Tuner, Tape DAT, etc.) to your preampli-

fier.

2.Connect the interconnects from the output of the preamplifier or switching center to the RCA input on the top rear of the amplifier.

3.Connect the hot or "+" speaker cable to the red binding post and the common or "-" speaker cable to the black binding post (See diagram 2). Ensure that the other end of the cable is connected correctly to the speaker. Tighten the binding posts by hand. If you use a nut-driver (3/8") do not over-tightenthe posts or you may breaak the connection inside the amplifier.

4.Insure that the "mains" switch on the front panel is in the "off" or "0" position.

5.Turn on Preamplifier and any source components you plan to use.

6.Plug amplifier into wall outlet.

7.Turn on the amplifier and allow it to 'warm up' a minute or so before playing any audio signal.

8.Turn up the volume and enjoy.

You have two amplifier modes - triode and ultralinear. Triode is about half power but is a less complex audio path which suits some peoples tastes and speakers. Quiet music or efficient speakers work well in this mode. Damping factor is slightly lower. Ultralinear is a more common amplifier mode that allows more power, higher damping factor and a wider range of speakers to be used. Before switching, turn off the amps to prevent thumps and unwanted noises. Try both - Use the mode that suits you. Best performance of tube amps is after they are well warmed up, generally about a half hour after powering.

You should get years of use from the tubes. Some statistically last less long and some last for 30 years. Checking bias every month usually will show you if they are drifting and performing within specification. Excess noise and microphonics, a tube turned white or not glowing are also big clues a tube needs to be replaced.

120 Watt Monoblock Amplifier specifications

Manley Labs has long been revered in the audiophile community for its commitment to producing high-quality audio equipment, and the 120 Watt Monoblock Amplifier is no exception. This powerhouse amplifier exemplifies the brand's dedication to a superior listening experience, offering a blend of premium sound quality and robust functionality that caters to the needs of discerning music lovers.

At the heart of the 120 Watt Monoblock Amplifier is its stunning power output, capable of delivering 120 watts per channel into an 8-ohm load. This ample power ensures that the amplifier can drive even the most demanding speakers with ease, maintaining clarity and detail across all volume levels. The use of high-quality transformers and carefully selected components further enhances the amplifier's efficiency and performance.

One of the standout features of the Manley Labs amplifier is its tube-driven design, utilizing high-performance vacuum tubes to enrich the audio signal. This not only adds a warm, natural character to the sound but also produces a harmonic richness that solid-state amplifiers often struggle to replicate. The amplifier employs 6550 power tubes, known for their linearity and high output capability, providing a dynamic range that breathes life into any musical genre.

In terms of technology, the Manley 120 Watt Monoblock Amp features a fully balanced design. By minimizing the potential for noise and distortion, this balanced architecture contributes to an overall cleaner audio output. The amp also incorporates high-quality capacitors and resistors, ensuring that signal integrity is preserved throughout the listening experience.

The build quality of this amplifier is exceptional, with a rugged chassis that includes top-notch connectors and a solid finish, which not only enhances its durability but also adds an aesthetic touch to any audio system. Additionally, the monoblock design provides flexibility for bi-amping configurations, allowing audiophiles to tailor their system for optimal performance.

Another impressive characteristic of the Manley Labs 120 Watt Monoblock Amplifier is its thermal management system. The amp is designed to run cool, which increases its longevity and ensures consistent performance even during extended listening sessions.

In summary, the Manley Labs 120 Watt Monoblock Amplifier stands out as a premium audio solution that combines power, elegance, and cutting-edge technology. Its tube-driven design, exceptional build quality, and advanced engineering make it a worthy addition to any serious audio setup, promising a listening experience that is both immersive and true to the artist's vision. With Manley Labs, every note comes to life, making each listening session a memorable one.