User manual GENELEC HTS3B4B

[. . . ] This position gives increased acoustic loading and SPL due to the proximity of the front wall and floor. Ideally the subwoofer and main speakers should be positioned symmetrically and at an equal distance from the listening position. If the frequency balance is not quite right, try moving the subwoofer to the left or right along the wall so that different room modes are excited at different levels. Positioning the subwoofer close to a corner will boost the bass level at lower frequencies and may cause asymmetrical spatial imaging. [. . . ] Once all connections have been made, the subwoofer and main speakers are ready to be powered up. Setting the phase control The effect of incorrect phase alignment between main speakers and subwoofer is a drop in the frequency response of the whole system at the main speaker / subwoofercrossover frequency. The phase difference between the main speakers and subwoofer at the listening position is dependent upon the position of the subwoofer. To avoid phase differences between the left and right channels and the subwoofer, the subwoofer should be placed close to the center of the front speaker array. Two phase matching switches in the crossover allow compensation for incorrect phase alignment. Four settings are provided between 0° and -270°. Positioning in the room The placement of the subwoofer in the room affects the overall frequency response and sound level of the system dramatically, as at low frequencies the effects of the room are strong. Even a slight change in the subwoofer's location can cause a marked difference in the frequency balance and often patient and methodical experimentation Soffit / Cabinet mounting If the subwoofer is installed in a cabinet or flush mounted in a cavity inside a wall, sufficient space must be left around it to ensure amplifier cooling and correct functioning of the driver/passive radiator system. The cavity must be at least 10 cm (4") wider and 10 cm (4") deeper and higher than the outer dimensions of the subwoofer. This Coarse phase correction method · Configure the processor so that the main speakers (L, C, R) are set to "small" and check the main speaker/subwoofer crossover frequency setting on your processor. This frequency may be SENSITIVITY ADJUSTMENT XLR INPUT, LINK OUT AND RCA INPUT CONNECTORS PHASE, BASS ROLL-OFF, AUTOSTART AND REMOTE CONTROL SWITCHES PHASE +3 +6 +9 +12 -6 0 -3 0/-90 DEG 0/-180 DEG Remote control type 12 V DC remote control External switch or relay + - Pole or contact Connect to remote control input pin no. 1 2 3 4 ROLL-OFF -2 dB -4 dB -6 dB ON OFF REMOTE CONTROL INPUTS CONNECTOR REMOTE CONTROL TYPE PIN NO. 1 2 3 4 + GND 12 V DC REMOTE EXTERNAL SWITCH OR RELAY AMPLIFIER MODE PIN 1 HIGH: ON PIN 1 LOW: STANDBY CONTACT CLOSED: ON CONTACT OPEN: STANDBY POWER XLR INPUT LINK OUT RCA INPUT 1 2 dBu SENSITIVITY FOR 100dB SPL@1m GREEN = NORMAL OPERATION YELLOW = STANDBY AUTOSTART REMOTE CONTROL + GND 1 2 3 4 PHASE AT CROSSOVER PHASE 0° -90° -180° -270° SW1 SW2 OFF OFF OFF ON ON OFF ON ON BASS ROLL-OFF ROLL-OFF SW3 SW4 SW5 0dB OFF OFF OFF -2dB ON OFF OFF -4dB OFF ON OFF -6dB OFF OFF ON -8dB OFF ON ON -10dB ON ON ON dB 0 -2 -4 -6 -8 -10 2 3 1 IN 1 3 2 OUT ALL OFF DO NOT USE BOTH INPUTS AT THE SAME TIME PIN 12 SIGNAL GND + 3 - DO NOT USE BOTH REMOTE CONTROL TYPES AT THE SAME TIME. AUTOSTART SETS THE AMPLIFIER TO STANDBY MODE WHEN THERE IS NO SIGNAL. Contact 1 Contact 2 18Hz 120Hz WARNING ELECTRIC SHOCK HAZARD! IT IS FORBIDDEN TO UNDO ANY SCREWS ON THIS EQUIPMENT. SERVICING AND ADJUSTMENT MUST ONLY BE CARRIED OUT BY QUALIFIED SERVICE PERSONNEL. NEVER OPERATE THIS EQUIPMENT WITHOUT A PROPER EARTHED MAINS CONNECTION. ENSURE THAT THE CORRECT VOLTAGE IS SELECTED BEFORE CONNECTING TO THE MAINS SUPPLY. THIS EQUIPMENT IS CAPABLE OF PRODUCING SOUND PRESSURE LEVELS IN EXCESS OF 85dB WHICH MAY CAUSE PERMANENT HEARING DAMAGE. DO NOT EXPOSE TO WATER OR MOISTURE. ROOM CONTROL SETTINGS REFER TO THE OPERATING MANUAL FOR SUGGESTED CONTROL SETTINGS. CAL POSITION ALL CONTROLS : OFF INPUT SENSITIVITY : -6dBu GENELECR HTS3B ACTIVE HOME THEATER SUBWOOFER MAGNETICALLY SHIELDED www. genelec. com MADE IN FINLAND Connect only one remote control unit at a time MAINS VOLTAGE SELECTOR, CONNECTOR AND SWITCH MAINS INPUT 50 / 60 Hz 200 Watts 115 / 230 V~ MAINS VOLTAGE SELECTOR SERIAL NUMBER Table 1. Connectors and controls of the HTS3B. · · · · · variable or fixed, consult the operating manual of your processor. Connect an audio frequency signal generator to one of the input channels used in the system. Set the frequency generator to the same frequency as the subwoofer crossover frequency on your decoder. If a signal generator is not available, you can use an audio test recording with a suitable range of test frequencies. [. . . ] Two pairs of connectors are provided, 1 and 2 for a 12 V DC trigger type remote control, and 3 and 4 for an external switch or relay type control. Switch the "REMOTE CONTROL" dip switch to "ON" to activate this function. Remote control overrides the "AUTOSTART" function. After the phase setting has been completed, return the speaker configuration on the processor to its' original settings. Warning! This equipment is capable of delivering sound pressure levels in excess of 85 dB, which may cause permanent hearing damage. Using multiple subwoofers The HTS3B and HTS4B are equipped with a "LINK OUT" connector to provide an easy way of coupling two or more subwoofers together in high SPL applications. Connect an XLR cable from the "LINK OUT" connector of the "master" subwoofer to which the decoder is connected, to the XLR input connector of the other, "slave" subwoofer. [. . . ]