User manual TOA KD-1

[. . . ] 2 Front Panel: Names of components & their usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Rear Panel: Names of components & their usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Block and Level Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The "0" detented position provides flat audio response. Cross-fade Control for Reverb and Effect [REV/EFF X-FD] When this control is in the center position, the Reverb signal (thus the internal reverberation unit) and EFF RET signals are equally assigned to the System mixing buss. Rotating the control counter-clockwise decreases the EFF RET signal level, keeping the original level of the Reverb Signal. Rotating the control clockwise decreases the Reverb signal level, keeping the original level of the EFF RET signal. Reverb/Effect Level Control [REV/EFF LEVEL] This control governs the amount of reverb signal through the reverberation unit (built in), and effect signal returned through the effect return jack (EFF RET) to the system mixing buss. The singal of Reverb signal and EFF RET is controlled simultaneously. Power/Protect LED Indicator [POWER/PROTECT] The LED indicator lights green when the power switch is "on". The LED turns red when the thermal protection circuit is activated, or the internal fuse (for overload protection) is opened. Input Channel Level [LEVEL] The level control provides continuously variable adjustment of the channel output to the mixing busses, thus determining the level of the channel in the main sound system mix. The nominal level of the input level control is at the "0" dB position. System Level Control [SYSTEM LEVEL] This control determines the overall volume level of the KD-1 system. Headphone Jack [PHONES] The headphone jack will accept any stereo headphone with 8 ohms impedance, or higher. When a plug is inserted into the jack, the speaker output is automatically switched off. Power Amp Compression Indicator [COMP] The Comp LED lights when the internal compressor is activated. The compressor is provided to protect the speaker system by compressing the input signal level of the power amplifier when clipping occurs in the output stage. However, a constant or steady light indicates that the KD-1 is being overdriven and that the internal power amplifier is possibly "under powered" for that application. The output level of the KD-1 should be decreased until the LED only flashes intermittently. 3 Rear Panel Effect Return Jack [EFF RET] This 1/4" phone jack is used in conjunction with the Effect Send jack to connect an outboard effects device (i. e, delay or reverb) to the KD-1. The Effect Return jack should be connected to the output of the effect. Nominal input level is -20dB with an impedance of 10k ohms. Effect Send Jack [EFF SEND] This 1/4" phonejack is used in conjunction with the Effect Return jack to connect an outboard effects device (i. e, delay or reverb) to the KD-1. Nominal output level is -l0dB with an impedance of 1k ohms. RCA Channel Input [INPUT] The RCA pin input jack is unbalanced, with a nominal level of -- 30dB and an impedance of 100k ohms. Aux Input Jack [AUX IN] The unbalanced 1/4" phone jack have a nominal input level of -20dB and an impedance of 10k ohms. 1/4" Phone Channel Input [INPUT] Phantom Power On/Off switch [PHANTOM] This jack is a standard, unbalanced 1/4" phone jack, with a nominal level of -30dB and an impedance of 100k ohms. When a plug is inserted into the 1/4" input jack, the corresponding RCA pin jack is automatically switched out of the input circuitry. This switch alternately turns "on" and "off the phantom power (48V DC) for the XLR connector assigned to Channel 1. The switch should remain in the off position when a condenser type mic is not in use. Power Switch [POWER] The power switch is a threeposition type with the middle position being the "off' position. The KD-1 should be operated in the switch position which produces the lowest amount of system hum. Balanced XLR Microphone Input [MIC] The XLR-type microphone input connector (channel 1 only) is electronically balanced with a nominal level of -60dB and an input impedance of 1k ohms. Phantom powering is provided for use with condenser-type microphones (see PHANTOM). The microphone input is automatical- AC Power Cord The power cord is of the threewire type with proper grounding facilities built-in. (6ft. ) Caution -- The ground pin should not be removed under any circumstances. If the KD-1 must be used without proper grounding facilities, a suitable grounding adapter should be utilized. [. . . ] 50 watts continuous average sine wave power into 8-ohm will less than 0. 05% THD at 1kHz. Frequency Response +0dB, -2dB 20Hz to 20kHz GENERAL SPECIFICATIONS Power Consumption 105 watts maximum Dimensions (W×H×D) 390mm×523mm×281mm 15 3/8"×20 5/8"×11" Weight 16kg (35 1bs) 5 Specifications INPUT SPECIFICATIONS Actual Input Load Impedance For Use With Nominal Input Level Nominal -30dB (24mV) -60dB (0. 78mV) -20dB (78mV) -20dB (78mV) MAX. Before Clip 0dB (0. 775V) -30dB (24mV) +10dB (2. 45V) + 10dB (2. 45V) Connector PHONE JACK RCA PIN JACK XLR-3-31 TYPE CHANNEL INPUT CH1~CH4 MIC CH1 AUX IN EFF RET PHONE JACK PHONE JACK 0dB is referenced to 0. 775V RMS. OUTPUT SPECIFICATIONS Actual Output REG OUT EFF SEND HEAD PHONE EXT. SP Source Impedance For Use With Nominal Output Level Nominal -10dB -10dB (245mV) (245mV) MAX. [. . . ]