Side Panels

Any of the input jacks can be used with any hi-fi RCA outputs and they are electrically identical and only differ in how we labeled them.

CD - Plug in your audio outputs from your CD player or "D to A Converter" here. Kind of obvious. A good spot for the main L & R signals from a DVD deck. Do not patch lines marked "digital output, SPDIF or AC-3 here though. These are un-decoded digital signals and not audio (yet).

VIDEO - Audio actually, from a VCR or Laser Disc player's audio outputs. Again, watch out for AC-3, video output and S-video.

TUNER INPUT - Connect your FM/AM tuner outputs here. Another good input for a second VCR too.

AUX - Plux your Aux in here -What is an Aux?. It stands for Auxilliary and basically

means "extra", so this is just an extra input for any other source that we didn't label or you have two of. Most people use it for tape deck playback and some use it for computer audio.

SPEAKER POSTS - The speaker connection posts are on the top panel and labeled on the side panel. The RED is positive and black is negative (ground). Be sure you have speakers (or a 4 to 8 ohm load resistor) connected to these terminals before powering the Stingray. Tube amps (unlike solid state) require a speaker if there is any chance there will be a signal applied.

Watch out for reversing the positive and negative wires either at the amp or speakers (unless you want to simulate record company executive's office hi-fi). The lows get lost, and the image is very weird. If in doubt, try reversing one channel, the way with the most lows is correct.

These terminals will accomodate most thicknesses of bare speaker wire and most U shaped terminals or banana plugs. The only thing that they don't like is thin wire. You should avoid thin wire for speaker cables in general. Use at least 18 guage (18AWG) or heavier. Bigger wire has smaller AWG numbers. Be sure that the top bolts are tight, but avoid over-tightening that might be difficult to undo or may damage the posts. In other words, firm as "strong finger tight" but less than "big wrench tight".

These outputs are appropriate for speakers rated between 3 and 10 ohms which includes all those 4 and 8 ohm speakers. For reference, the amp design was optimized for 5 ohms. The damping factor is about 10 - good for a tube design. The only thing to consider is your speaker sensitivity. With 50 watts per channel max, the best combinations are with sensitive and very sensitive speakers, ie 90 dB/1watt/1 meter or higher. Of course, if you can accept "quiet only" then this is not much of an issue.

INTEGRATED AMPLIFIER specifications

Manley Labs has a long-standing reputation for producing high-fidelity audio equipment, and their integrated amplifier is a shining example of this legacy. Catering to audiophiles who appreciate both performance and finesse, the Manley Labs Integrated Amplifier combines powerful technology with artistic design.

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An elegant chassis houses this sophisticated amplifier, enhancing both aesthetics and acoustic performance. The front panel is designed with simplicity in mind, featuring easily accessible volume controls and inputs for a variety of sources, including vinyl turntables, digital sources, and streaming devices. The dual-mono topology, where each channel has its dedicated power supply and amplification, further enhances stereo imaging and separation, resulting in a more immersive soundstage.

The Integrated Amplifier is equipped with Manley’s proprietary features, including a passive volume control and selectable equalization options. This helps users customize their listening experiences according to personal preferences or their specific audio setups. With a high output power rating, the amplifier is capable of driving a wide range of loudspeakers, making it versatile for various audio configurations.

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