C anary a udio ® 300b mono block power amplifier handcrafted in california ca-303 signature edition owner’s manual made in usa.
! This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the unit. The lightning flash with arrowhead symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the p...
Safety instructions power source: • the unit should be connected to an ac power source of the proper rated voltage. • never replace the power supply’s line fuse with the one of incorrect characteristics. Ac cord protection: • do not defeat the grounding or polarization feature of the ac cord. • make...
Proper care bias settings: • when replacing the 300b vacuum tubes, you must adjust the bias settings of the amplifier to account for the new tubes. These adjustments best performed by your canary audio dealer as an incorrect bias setting can cause damages to the tube and to the amplifier. Break-in p...
Unpacking • open the shipping boxes and remove the top layer of foam. • remove the owner’s manual and other accessories from the packing box. • grasp the underside of the amplifier and lift it straight out of the packing box. (2 people needed) • place the amplifier in a safe location. Remove the pro...
Connection steps 1. Place the ca-303se in a rack, on a shelf or on the floor. 2. Turn off any associated components prior to connecting the ca-303se. This minimizes the chance of momentary electrical surges disturbing your system. 3. Neatly arrange and organize wiring to and from the evolution ampli...
Diagram 1.1 overview of ca-303 se v1 v3 v5 v2 v4 v6 installing the tubes be sure the amplifier is off before installing any tubes. Avoid touching the tubes with bare hands to prevent skin oils from depositing on the glass surface of the tubes. Insert each tube in the corresponding socket. Refer to d...
Tube biasing bias voltage applied to the grids of the power tubes in the output stage should be checked from time to time to keep these tubes operation at the optimum operating point. A properly biased power tube will have a longer life. To check and adjust the bias voltage of the 300b tubes, simply...
Specifications model: ca-303 signature edition rated power output: 24 watts rms sensitivit input y: 0.72 volts for full output input impedance: 150,000 ohms frequ +/- 1 db from 10 hz to 65,000 hz ency response: total harmonic distortion: signal-to- oise n ratio: -84 db below 1 watt damping factor: 1...
Limited warranty canary audio warrants to the original purchaser that each ca-303 signature edition power amplifier is free of manufacturing defects for a period of three (3) years from the date of purchase. To receive this warranty, the original purchaser must complete the enclosed warranty registr...
