Selector Switch

Cary Audio Design SLP-88 Preamplifier Operations Manual

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The 4-position rotary switch connects a choice of input program source, both channels simultaneously. All program line sources are selected from this front panel 4 position switch. As you switch from source to source inputs, you will hear a soft mechanical clicking sound. This is normal and proper. The clicking sound is the double pole, double throw (DPDT) relays switching positions.

WARNING!!!

MAKE NO ATTEMPT TO PUT THE SLP-88 INTO SERVICE WITH THE TOP OFF OR THE CABINET OPEN. NEVER OPERATE THE SLP-88 WITH THE TOP COVER REMOVED. CONTACT WITH OPERATING VOLTAGES PRESENT INSIDE THE SLP-88 CAN BE FATAL!

HEADPHONE SWITCH AND JACK

Switching to the on position will engage two output transformers for the headphones. The primary of each transformer is connected via gold plated relays to the output section of the SLP-88. Please be aware, engaging this switch still allows signal to flow to the Rocket 88 or your basic power amp in your system. Turn off your amplifier to listen to headphones. With this design there are no interruptions in the output signal path. You will note that a blue LED will light above the headphone switch when it is turned to the on position. Make sure that you turn off the headphone switch before listening with your amplifier. It won’t harm anything but the low frequencies may be rolled off a bit to the amplifier if the headphone switch is left in the on position.

SPECIAL NOTE: Polarity Inverting Design

Your new SLP-88 is a polarity inverting gain stage preamplifier design. This means that a positive direction signal coming into the SLP-88 will be polarity inverted as it is amplified and sent to the power amplifier as a negative direction signal. The SLP-88 has one gain stage and one buffer stage in each channel. This polarity inversion is common on many high-end preamplifiers. If you are concerned about ‘Absolute Phase’ in your system, reverse the positive and negative leads either on the back of both loudspeakers or at the output terminals of the power amplifier. Remember to do this for both channels. Please remember, only switch the speaker cable polarity at the power amplifier or at the loudspeaker, not at both. Once again, operating in the polarity inverted phase mode will not harm or hurt anything.

SLP-88 specifications

Cary Audio Design has long been recognized for its commitment to crafting high-quality audio components, and the SLP-88 is no exception. This preamplifier signifies a sublime blend of performance and aesthetic appeal, making it a standout option for audiophiles seeking a premium listening experience.

At the heart of the SLP-88 is its exceptional tube circuitry. Utilizing a combination of 12AX7 and 12AU7 vacuum tubes, the preamp delivers a warm, rich sound signature that enhances the musicality of every note. The design pays homage to the traditional analog processes while integrating modern technological advancements, ensuring that users receive both a classic and contemporary auditory experience.

The SLP-88 features a fully balanced design, a hallmark of high-end audio components, which minimizes noise and distortion. This configuration allows for optimal signal integrity, making it suitable for both high-impedance and low-impedance sources. The preamplifier also includes a meticulously designed power supply, which not only offers stable performance but also extends the lifespan of the tubes by ensuring they operate within their optimal parameters.

Another prominent feature of the SLP-88 is its versatility in connectivity. It’s equipped with multiple inputs, including balanced XLR and unbalanced RCA options, allowing seamless integration with various audio sources. Furthermore, the preamp boasts a high-quality headphone output, catering to those who prefer a more intimate listening experience.

The SLP-88 showcases an elegant design aesthetic, finished in a sleek chassis that complements any high-end audio setup. The front panel is intuitive, featuring a minimalist control layout that includes volume and input selectors, making it easy for users to navigate their audio preferences without distraction.

Furthermore, Cary Audio emphasizes user customization, allowing audiophiles the flexibility to tailor the sound to their preferences. With an array of additional options, such as remote control functionality and tube rolling capabilities, users can fine-tune their listening experience to suit their specific desires.

In summary, the Cary Audio Design SLP-88 stands as an embodiment of high-fidelity sound, marrying classic tube warmth with modern technology. Its premium construction, versatile connectivity, and user-centric features make it a compelling choice for anyone looking to elevate their audio experience. Whether you're a seasoned audiophile or a casual listener, the SLP-88 promises to enhance your musical journey with sophistication and style.