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Resumen del manual
(The power will turn on when a mono plug is inserted, and off when the plug is pulled out.) The power is ON. The power is OFF. — |l — INPUT 1 INPUT 1 OUTPUT jacks (1-4) These jacks output the adjusted trigger signals. Connect these jacks to the trigger inputs of the TD-7, or to the EXT inputs of the SPD-11. AC adaptor jack (IN, OUT) An AC adaptor (BOSS PSA- series: sold separately) can be connected to DC IN. If you wish to supply power to another AT-4, connect a DC cable (BOSS PCS-25: sold separately) to DC OUT. Changing the battery The AT-4 uses one 006P/9V battery. Remove the two screws from both sides, and insert the battery as shown in the diagram. * Make sure that the polarity (+/-) of the battery connector is correct. Installing the AT-4 The AT-4 is used in connection with a TD-7 or SPD-11 etc. You can use the zelcro-type tapes included with the AT-4 to attach it to a TD-7 or SPD-11. adhesive tapes TD-7 SPD-11 * Be sure the mounting surface is free of dust before you begin. 7 1. Connections Use mono cables to make connections between acoustic trigger pickups and the AT-4. T",1 i Ji SPD-1 1 TD-7 INPUT 1 also functions as the power switch, so be sure that it is connected when you wish to use the AT-4. (A stereo cable cannot be used.) 8 * Before inserting or removing a plug from an INPUT jack, be sure to turn down the volume on the amp/sound system. * A trigger signal will be transmitted when the power is turned on, so turn down the volume of the TD-7 or SPD-11 before inserting a plug into INPUT 1. * For details on attaching an acoustic trigger pickup to a drum, refer to the manual of the trigger pickup you are using. By using DC cables (BOSS PCS-25:sold separately) you can use one AC adaptor to provide power to up to three AT-4 units. AC adaptor PCS-25 PCS-25 * Never use DC cables to supply power to other products. Recommended placement for acoustic trigger pickups (adhesive types)_ Drum Location Snare drum batter head Bass drum batter head Tomtom shell Floor tom shell Description 2-3 cm from the rim 5-10 cm from the upper part of the rim beside a lug, 2-3cm from the rim of the batter side beside a lug, 2-3cm from the rim of the batter side 2. Turn on the power After turning down the volume on the TD-7 or SPD-11, connect a mono cable to INPUT 1 (stereo cables cannot be used). The power will come on, and the POWER indicator will light. * Do not connect a stereo \ cable to each INPUT. To turn off the power, first turn down the volume of the TD-7 or SPD-11, and then disconnect the cable from INPUT 1. 3.TD-7/SPD-11 settings For inputs using an acoustic trigger pickup, adjust the trigger parameters to appropriate values using the following settings as a guideline. TD-7: Vel Curve Max Dyna Min Dyna Min Velo Mask Time Threshold Norm 3 8 4 1 0 ms 1 SPD-11: TRIG SENS TRIG THRESHOLD TRIG MASK TIME TRIG SCAN TIME 6 1 0 10 You may need to adjust these values depending on the type of acoustic trigger pickups you are using, the location on the drum, and your drum setup. 9 4. Adjust the sensitivity Use the SENSITIVITY knobs to adjust the sensitivity of the acoustic trigger pickups. rn ffissi / \ MIN MAX * Sensitivity will increase as each knob is rotated clockwise. Adjust the sensitivity so that the dynamics change naturally as you play softly or loudly, and so that there are no differences in level between pickups. Higher sensitivity settings will give you more detailed control over playing dynamics, but will also mean that 'double triggering' can occur more easily. (Double triggering is when two or more notes are sounded from a single drum stroke.) If you are unable to make appropriate adjustments using the SENSITIVITY knobs, or if dynamics do not sound natural, adjust the settings of the TD-7 or SPD- n. 10 Hints for TP-7/SPP-11 settings The level is low -> lower Max Dyna (TD-7) -> raise TRIG Sensitivity (SPD-11) Soft strokes produce loud notes -> raise Min Dyna (TD-7) Single strokes produce multiple notes (double triggering) -> raise THRESHOLD (TD-7/SPD-11) Other drums also sound (crosstalk occurs) -> raise THRESHOLD (TD-7/SPD-11) Soft strokes are not detected -> lower THRESHOLD (TD-7/SPD-11) Changes in playing dynamics do not affect volume -> lengthen TRIG SCAN TIME (SPD-11) • Hints for drum setups Most problems with double triggering or crosstalk can be eliminated by changing the location of the pickups, adjusting the tuning of the drums or by modifying the drum setup. If you have problems with double triggering, try changing the location of the pickups. If this does not work, we suggest you mute the drums (i.e., shorten the resonance by damping the drum head with felt, etc.). When the drums are muted, dynamics will also be triggered more accurately. For a snare drum, it is also effective to set the snare wires fairly tight. If you have problems with crosstalk, change the setting of the drums to separate those which prod...