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Sonic Impact Technologies Power 2 manual

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Table of contents for the manual

  • Page 1

    Operating Manual for the Sonic Frontiers Power 2 Stereo Amplifier[...]

  • Page 2

    Operating Manual for the Sonic Frontiers Power 2 Stereo Amplifier W e at Sonic Frontiers hope you will derive many years of listening pleasure with your new Power 2 Amplifier. This Operating Manual contains important information regar d- ing the operation and care of this Amplifier. Be sure to read this manual carefully and follow these instruction[...]

  • Page 3

    1 Unpacking At this point we can assume that you have successfully opened the box flaps and found this manual. The box was designed to ensure the safe transport of the amplifier, Sonic Frontiers strongly recommends the storage of the Power 2 box in a safe, dry place. In the event that the amplifier may have to be shipped in the future, the original[...]

  • Page 4

    2 Quick Setup At this point we urge you to read and understand this manual in its entirety. But if you desire immediate action and have skill and/or past experience with tube hardware, fol - low these steps. 1. Place the amp on a hard flat surface that will not impede airflow under the amplifier’ s chassis (carpeting or area rugs ar e NOT accepta[...]

  • Page 5

    3 Reference Diagrams This drawing is refer red to as the “Tube Top” within the instructional text. T ube locations V1 to V3 and LV1 to LV3 indicate placement for the six 6922 tubes. T ube locations V4 and LV4 indicate placement for the two 5687 tubes. Locatio ns V5 to V8 and L V5 to LV 8 indic at e plac e ment for the 6550C/K T88 powe r tubes. [...]

  • Page 6

    4 C Power Switch D Standby Switch E Power LED (Green - Power; Red - Mute; Orange (Red + Green) - One Channel in Mute) F Standby LED (Green - Operate; Red - Standby) G Detachable IEC Power Cord Socket H Fuse Location I Left and Right Channel Input Selector Switches J Left and Right Channel Balanced XLR Inputs K Left and Right Channel Single-Ended RC[...]

  • Page 7

    5 Installing the Tubes Be sure the amplifier is OFF (Power Switch Out) before installing any tubes or when any of the tube sockets are empty . W earing the cotton gloves provided with the amplifier when handling tubes will prevent skin oils from depositing on the glass surface of the tubes. The oils could cause the tubes to become “gassy” and f[...]

  • Page 8

    6 When installing the 6550C or KT88 power tubes, match the numbers designated on the metal base of the tube or the tube boxes to the cor r esponding markings printed on the tube top (V5 through V8 and LV5 through LV8) and be sure the center pin key locator is in alignment with the slot in the center of the socket. Again push down the tube, rocking [...]

  • Page 9

    7 Biasing of the Power Tubes Bias voltage applied to the grids of the power tubes in the output stage should be checked from time to time (once a month) to keep these tubes operating at the optimum operating point. A properly biased power tube will have a longer, happier life. T o check the bias of the 6550C/KT88 tubes, place the amplifier in mute [...]

  • Page 10

    8 Controls, Functions and Connections Front Panel Refer to Reference Diagrams. C Power Switch This switch provides control over the AC power from your wall outlet. When OFF (out position) nothing on the amplifier is functional. When ON (depressed) the amplifier will operate normally (green power LED indicates ON; Red Power LED indicates ON but in M[...]

  • Page 11

    9 Damage due to bypassing the fuse or due to replacement of a fuse of higher ratings will not be covered under the warranty. To access the fuse, insert the slotted screwdriver , pushing to compress the internal spring and turn counterclockwise to unlock the housing. The spring will then eject the fuse and the housing. I Left and Right Channel These[...]

  • Page 12

    10 Adjustment for Load Impedance Note: Adjustment for load impedance should only be done by an authorized Sonic Frontiers dealer, distributor or service technician. Any damage to the amplifier as a result of a person(s) not authorized by Sonic Frontiers will not be covered under warranty . W arning: Dangerous voltages exist within this amplifier . [...]

  • Page 13

    11 4.Using the slot screwdriver provided with the amp, deal with one connection at a time, loosening off the tap screws of the first spade lug connection and tightening to the desired tap. The final connections should resemble these renderings: 8 Ohm Impedance Connections 4 Ohm Impedance Connections 2 Ohm Impedance Connection 5. Repeat for each cha[...]

  • Page 14

    12 Care and Maintenance Placement The amplifier must be placed on a har d flat sur face with plenty of unobstructed space around the Power 2 to allow for free movement of air for proper cooling. If the amplifier is to be placed on a carpeted floor, a Wood, Ceramic, Concrete, Marble... tile or slab 18” x 22” (or larger) must be place under the P[...]

  • Page 15

    13 T r oubleshooting If at any time the amplifier should fail to work, follow these steps: 1. Check that all tubes are fully seated in cor r ect sockets and all tube filaments are lit. 2. Check all connections at the rear panel. 3. Check that the amplifier is not in MUTE mode. 4. Check that the proper input is selected via the Selector Switch. 5. C[...]

  • Page 16

    14 W arranty Disclaimer of Liability Under no circumstances does Sonic Frontiers, Inc. assume liability or responsibility for injury or damages sustained in the use or operation of this equipment or for damages to any other equipment connected to it. Sonic Frontiers, Inc. reserves the right to make design changes or improvements without the obligat[...]

  • Page 17

    15 Specifications Note: Power ratings based on a nominal power line input. All specifications are made on the 8 ohm taps, utilizing an 8 ohm load unless otherwise specified. Power Output: 110 watts continuous at 8, 4 and 2 ohms from 20 Hz to 20 kHz with less than 1% total harmonic distortion terminated with rated load (typically <0.5% @ 110 watt[...]