Owner`s manual

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OWNER’S MANUAL

JAS Bravo 1.1 LE

High End Vacuum Tube

Pre-Amplifier

Limited Edition

NOTE: Before installing your new Bravo 1.1 LE audio pre-amplifier, please

read this manual carefully. It will inform you of the product specifications and

also proper installation and operation procedures.

For additional requests

If you have any additional questions regarding the installation

or operation of our products, you are welcome to contact us directly via

email: “ enquiry@jas-audio.com “, and please check frequently our JAS Audio

official website: “ http://www.jas-audio.com “.

Page 1 of 9

http://www.jas-audio.com

Summary of content (9 pages)

PAGE 1
OWNER’S MANUAL JAS Bravo 1.1 LE High End Vacuum Tube Pre-Amplifier Limited Edition NOTE: Before installing your new Bravo 1.1 LE audio p r e - amplifier, please read this manual carefully. It will inform you of the product specifications and also proper installation and operation procedures. For additional requests If you have any additional questions regarding the installation or operation of our products, you are welcome to contact us directly via email: “ enquiry@jas-audio.
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JAS AUDIO HIGH End Vacuum Tube Pre-Amplifier BRAVO 1.1 LE Welcome to JAS Audio Family! This JAS Bravo 1.1 LE vacuum tube pre-amplifier is designed and manufactured to the highest quality standards in design and craftsmanship. S e p a r a t e matching cabinets of piano finish on Rosewood veneer with black acrylic sheets for both face and back plates in rectangular shapes h e l p c r e a t e a v i s u a l l y p l e a s i n g c l a s s i c a p p e a r a n c e .
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Bravo 1.1 LE OWNER’S MANUAL Introduction Thank you for purchasing the JAS Audio Bravo 1.1 LE Vacuum Tube Pre-amplifier. Exquisiteness of this rep-amplifier is accomplished by utilizing two boxes made of MDF for accommodating the circuit and the power supply separately. Having installed with two sets of chokes for regulating passage of high and low frequency signal flow, this amplifier is successful in delivering smooth and vivid sound over the entire frequency range in signal amplification.
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supply are housed separately in two wooden boxes. They should be linked together by a power connecting cable before putting into operating condition. Please ensure that the connecting cable is properly and securely connected between the main circuit box and the power supply. A remote control is supplied for power on-off and volume control. Circuit Box Tubes under the removable grille Power Supply Power switch It is important to be careful with tube installation.
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Electrical hazard! Misuse or failure to follow instructions properly may result in personal injury or death! CAUTION: No risk of personal injury; however, misuse or failure to follow instructions may result in damage to equipment. NOTE: No risk of personal injury or equipment damage; however, misuse or failure to follow instructions may prevent proper performance. NOS types of 12AX7, 12AT7, and 5Z4P tubes will work fine in the JAS Bravo 1.1 LE Pre-amplifier.
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Selector to choose source of input Signal in Signal out Power in Power Requirements: The Bravo 1.1 LE is designed to operate from the AC mains (house current) and is pre-set in the factory according to local supply of the import region. A standard IEC AC power socket with a built-in fuse is provided on the back chassis panel. Power connecting cable Power in IEC power socket Caution: There is a power on-off button located on the front panel of power supply. Bravo 1.
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tubes light up after pressing the power switch at ON position while the Gain Control Knob on the main box is at 0dB or 3dB. Power ON Operation Your new pre-amplifier is ready for operation when the tubes are properly installed, and the input interconnect cables from the source and those for connecting the power amplifier are properly connected. We recommend high quality silver cables for interconnects and high purity copper conductor cables for power connection.
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The piano lacquer finish chassis of both the main box and the power supply may only be cleaned with high quality soft cloth similar to that for lens cleaning. Before attempting to clean the surface, make sure that there isn’t any dust or particles left on the surface. Blow before wiping is always recommended. The frequency of cleaning will be governed by the cleanliness of the operating environmental.
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2. was purchased. If the equipment is being used outside the country of purchase, you should contact JAS Audio National distributor in the country of residence who will advise where the equipment can be serviced. To validate your warranty, you will need the original sales invoice or other proof of ownership and date of purchase.