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CAD 808/Rocket 88 R
Stereo Vacuum Tube
Power Amplifier
INITIAL SET UP
and
OWNERS MANUAL
:
NOTE
Before installing your new power amplifier, please read this manual carefully as it will inform
you of the specifications, proper installation procedures and operation procedures. Also included in this
manual are guidelines on how to properly service and care for your new Rocket 88 R.
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Table of Contents
Related Manuals for Cary Audio Design CAD 808
Summary of Contents for Cary Audio Design CAD 808
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Page 1: Power Amplifier
CAD 808/Rocket 88 R Stereo Vacuum Tube Power Amplifier INITIAL SET UP OWNERS MANUAL NOTE Before installing your new power amplifier, please read this manual carefully as it will inform you of the specifications, proper installation procedures and operation procedures. Also included in this manual are guidelines on how to properly service and care for your new Rocket 88 R. -
Page 2: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulated dangerous voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. - Page 3 IMPORTANT SAFETY INSTRUCTIONS 14. LIGHTNING: For added protection for the unit during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the unit due to lightning and power line surges.
- Page 4 IMPORTANT SAFETY INSTRUCTIONS 26. FCC INFORMATION FOR USER: CAUTION: ANY changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules.
- Page 5 Rocket 88 R has been a real treat to me and I hope it is for you as well. It combines our superb Cary Audio Design sound and build quality at a surprisingly modest price. We believe it is a truly a ‘Best Buy’ stereo vacuum tube power amplifier! The basic premise I started with on the Rocket 88 R was to develop a truly linear, wide bandwidth, stereo vacuum tube power amplifier.
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Page 6: Theory Of Operation
THEORY OF OPERATION For the technically minded, a review of the circuit is in order. Your new Rocket 88 R operates in push pull triode Class A mode and in class A/B ultra-linear mode. The output stage -88 tubes are biased with a negative fixed bias voltage for low distortion and maximum output capabilities. - Page 7 even higher overall power output levels to try to solve the clipping problem. In reality, we believe the most critical aspect is how fast a recovery an amplifier can achieve after overload. With the incredible dynamics range of live and recorded music, even 2,000 watts of power is potentially not enough.
- Page 8 Specifications: Rocket 88 R Stereo Power Amplifier DIMENSIONS: 10”W x 18”D x 6”H (25.4 cm x 45.7 cm x 15.2 cm) WEIGHT: 45 Lb.. (20.4 kg) CIRCUIT TYPE: Push-Pull Triode Class A, Ultra-linear Class A/B POWER OUTPUT: 30 Watts Triode, 60 Watts Ultra-linear INPUT SENSITIVITY: 1.2 volt for full output INPUT IMPEDANCE: 150,000 ohms...
- Page 9 Front Panel Features AC-ON ROTARY SWITCH: Turns power on in the “on” position. GREEN ‘CAT EYES’: Indicate audio power output, fully closed eye at maximum power. Rear Apron Features : Signal input connection via either shielded interconnect cables. Pin INPUT #1 is the shield, #2 positive phase signal on connector.
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Page 10: Installation
Warranty Card Fill out the enclosed warranty registration card and return it to Cary Audio Design within 10 days of original purchase. Keep your original sales slip with the packing cartons should you ever need it for reference. Failure to register warranty will limit the... -
Page 11: Power Requirements
Rocket 88 R to the speakers. Avoid long lengths that have excess slack. If your loudspeaker has the facility for bi-wiring, then by all means use separate cables or bi-wire speaker cables. Your Authorized Cary Audio Design Dealer will have proper speaker cable in stock for this purpose. - Page 12 illuminated. Should you not observe the above conditions, turn off the amplifier and check the power cord and socket Triode/Ultra-Linear Switch On the top of the chassis behind the -88 output tubes is located a chrome handle switch. With the handle pushed to the rear of the amplifier the mode of operation is ultra-linear.
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Page 13: Tube Replacement
1-919-355-0010, to describe your problem in detail. Do not return the amplifier to the factory without a return authorization number from the Customer Service Department. Cary Audio Design will assume no responsibility if the transportation company refuses to pay a damage claim due to improper packing or lack of insurance should the unit be lost in shipment. - Page 14 WARNINGS! MAKE NO ATTEMPT TO PUT THE ROCKET 88 R INTO SERVICE OUTSIDE OF THE CABINET. CONTACT WITH THE HIGH VOLTAGES FOUND INSIDE THE UNIT CHASSIS CAN BE FATAL! COMPLETELY REMOVE THE AC POWER PLUG FROM THE WALL AND ALLOW 30 MINUTES FOR THE HIGH VOLTAGE CAPACITORS TO DISCHARGE THROUGH THE BLEEDER RESISTORS BEFORE YOU ATTEMPT TO CHANGE THE TUBES OR TO CLEAN THE INSIDE OF THE AMPLIFIER!
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Page 15: United States Limited Warranty
CAVT 300B vacuum tube which has a (1) one year from purchase date exchange policy. Any digital drive design, whether a Cary Audio Design CD or SACD player or a Cary Cinema DVD player, has a limited one year parts and labor warranty against defects in manufacture. This is a limited warrant, for the original purchaser only and does not transfer to any subsequent owner.