User manual HARMAN KARDON CA260

[. . . ] Ultrawide Bandwidth is achieved by the use of inherently fast open-loop circuitry This improves transient accuracy and phase linearity Low Negative Feedback only 25dB of negative feedHighly linear circuitry produces low distortion w ~ t h back. Discrete Component Audio Circuitry is used because ~twas found to be the only way to provide HCC, Ultrawide Bandwidth and Low Negarive Feedback. [. . . ] If possible, mount the CA260 chassis directly to a vertical or near-vertical surface, such as the lns~de wall beh~nd the rear seat. If this is not possible, use the optional Vertical Mounting Bracket (BRI) t o mount the CA260 t o a horizontal surface, such as the trunk floor. The brackets permit vertical heatsink orientation when mountinq t o a horizontal surface. In addition to vertical orientation, the recommended installat~on locations allow air t o flow freely through the heatsink fins. This convection, or "chimney effect", provides maximum heat dissipation. Horizontal heatsink orientation, such as when the unit is mounted under a seat or directly t o the trunk floor, reduces heat dissipation and causes the unit to run hotter At low temperatures (below 70' F, 20" C) or at low power levels, these positions may be acceptable. But at higher temperatures andlor power levels, these positions are likely to cause one of the thermal protection systems t o activate. Note : Drill undersized holes in the car chassis so that the 5rnm tapping screws fit t~ghtly. We recommend 3 5 m m or 118 inch diameter holes. Note 2: A template is enclosed so that the precise hole locations for the tapp~ng screws can be easily determ~ned , Tern plate Mounting t o a Horizontal Surface w i t h the Optional Brackets (BR1) Using the template, locate and drill 6 holes corresponding to those in the short ends of the vertical mounting brackets. Mount the brackets to the surface with the six 5 m m hexagon-head tapping screws and spring washers. Then mount the CA260 to the brackets using the six 5 m m hexagon-head nuts and bolts. Vertical Mounting Directly Mounting t o a Vertical Surface Using the template, locate and drill 6 holes corresponding to those In the CA260 chass~s Securely mount the CA260 to the surface with the six 5 m m hexagon-head tapping screws and sprlng washers Spring Washer . Spr~ngWasher , !% &$ a Speaker System D+J 11 Right channel Left channel Leir channel v i i 0 OUtOUl Car Stereo Right channel outout Left channel output u Car Battery TunerIDeck Chassis Note. A tunerideck with line level outputs and a car stereo w ~ t h g h n level (soeaker) outouts should not he connected simultaneously, as shown in this diagram. Caution# 1 : The ignition key switch should be turned off before any connections are made to the car electrical system. Caution#2: The last connection t o be made should be that between the positive terminal of the car battery and the " + B" terminal on the CA260. Connect the CA260 to the car electrical system and to the other components in the audio system as per the following ~nstructions: Remote This terminal enables the power switch of the car stereo or tunerldeck to also turn on the CA260. Connect it to the appropriate wire on the car stereo or tunerldeck If a specific wire for this purpose is not provided, use the wire for controlling the power antenna. [. . . ] It is good practice t o add a line fuse near the battery terminal t o protect the battery from a short circuit along the wire. + GND This is the negative power input terminal It should be connected directly t o the car chassis by a short, heavy gauge wire. It is not necessary t o connect this terminal t o the negative battery terminal. [. . . ]