User manual TAG MCLAREN AUDIO 700X7R

[. . . ] All the active components involved are operated under circuit conditions that maximise their bandwidth. This results in greater stability when the negativefeedback loops are closed. Components that are essential for powersupply filtering in a conventional amplifier are no longer required, saving weight and cost and enhancing reliability. In a normal highpower amplifier transistors in sensitive parts of the circuitry get warm, which means their characteristics vary depending on the air flow around them. [. . . ] It is important that the cooling slots in the top and bottom are not obstructed, and there is sufficient space around the unit to allow for the free circulation of air. Avoid operating the amplifier on a soft surface, such as thick carpet, which is likely to block the slots underneath, 1 . Throughout this manual, b o l d print indicates the lettering that you will find on the re ar panel of your 700:7r 10 | set-up remove power Before making any signal connections ensure the amplifier is not connected to the mains supply. signal connection Ensure that the amplifier mains plug has been removed from the wall socket before making loudspeaker connections. Connect your pre amplifier/av processor using good quality analog interconnects. loudspeaker connection Ensure that the amplifier mains plug has been removed from the wall socket before making loudspeaker connections. When making the connection, ensure that the spade terminal is correctly located and the loudspeaker terminal is fully tightened. set-up 7channel set-up For seven channel use the channel bridging switch is in the `off' position. | 11 You will find 7 pairs of loudspeaker terminals on the rear of the unit. For seven channel use, the speakers are connected between the + (red) and -(black) terminals as shown above. Connect the red (+) terminal of the loudspeaker to the red terminal on the rear panel of the 700:7r. In turn connect the black (­) terminal of the loudspeaker to the black terminal on the 700:7r. It is not advisable to change the position of this switch when the amplifier is powered and connected to loudspeakers. No damage to the amplif ier will r esult, but you may apply an unexpectedly high level to the loudspeakers. 12 | set-up Bridging When the 700:7r is operated in bridged mode, two amplifier channels are used to drive each loudspeaker, for greater power output. To use bridged modes of operation you must alter the position of the channel bridging slide switch on the rear of the unit. This has three positions and allows you to bridge just BR and SR to give one extra-powerful channel, or bridge both BR-SR and BL-SL to give two extrapowerful channels. The operation of the LEFT, RIGHT and CENTRE channels is not affected. 6 channel set-up The channel bridging switch is put in the middle position marked "BR+SR" When the BR and SR amplifiers are bridged, the + lead of the speaker cable connects to the BR+ output terminal, and the - lead of the speaker cable connects to the SR+ output terminal as shown. To apply signal to the BR-SR bridged channel use the upper RCA input (marked "In A"). The lower RCA (SR in) is not used. It is not advisable to change the position of this switch when the amplifier is powered and connected to loudspeakers. No damage to the amplif ier will result, but you may apply an unexpectedly high level to the loudspe akers. set-up 5 channel set-up The channel bridging switch is put in the right position marked "BR+SR BL+SL" The BL and SL amplifiers are now also bridged, and the + lead of the speaker cable connects to the BL+ output terminal, and the - lead of the speaker cable connects to the SL+ output terminal, as shown. To apply signal to the BL-SL bridged channel use the upper RCA input (marked "In B"). To apply signal to the BR-SR bridged channel use the upper RCA input (marked "In A"). The lower RCA (SR in) is not used. | 13 It is not advisable to change the position of this switch when the amplifier is powe red and connected to loudspeakers. It will then enter the active state and the blue power LED will glow brightly. The amplifier will remain active for 15 minutes after all audio signals disappear and will then return to standby. This delay period is to prevent the amplifier going to standby on brief interruptions, eg while changing CDs. 16 | operation If the standby mode switch on the rear is set to `LOW SENSITIVITY' (leftmost position) then operation is as for high sensitivity except that the incoming audio signal must be at a higher level before it will be acted upon. This setting should be used in electrically noisy environments if there are problems with spurious activation. [. . . ] If this happens, you should have your 700:7r serviced. fuses There is a fuse in the power socket on the back of your 700:7r. To change the fuse, unplug the power cable and carefully pull out the fuse carrier drawer(1). The fuse carrier contains a spare fuse; this is the first one that you see when you open the carrier. There are no user-serviceable parts inside the 700:7r. s e rv i c e The only service you should do to your 700:7r is described on the previous page. [. . . ]