User manual GENELEC HT206B

[. . . ] ing the overall response of the system to be optimized to an extent impossible with a passive system. To maintain uniform frequency balance in differing acoustic environments, three switch groups are included in the active crossover network: treble and bass 'tilt' and bass 'rolloff' switches, which make adjustments in 2 dB steps. Place the loudspeakers in their required positions and aim them towards the center of the listening area. Do not place the speaker in a horizontal position as this may cause acoustical cancellation problems around the crossover frequency. [. . . ] The high frequency driver is a 25 mm (1") (HT210B, HT208B) or a 19 mm (3/4") (HT206) metal dome. The uniform dispersion control is achieved with the revolutionary DCW technology pioneered by Genelec. The DCW also provides perfect phase and delay uniformity at the crossover frequency. The bass and treble drivers are magnetically shielded on all models. Crossover The amplifier unit contains an active crossover. This is the ideal method for dividing the input signal between the driver units, allow- Setting the input sensitivity The input sensitivity of Genelec HT series speakers can be matched to the decoder output section or other source by using the Figure 2. HT208B shown. input sensitivity control on the rear panel (see figure 1). The manufacturer's default setting for this control is -6 dBu (fully clockwise) which gives a sound pressure of 100 dB @1m with -6 dBu input level. Note that to get the full output level of 110 dB SPL, an input level of +4 dBu is needed in this setting. deactivated by turning the "AUTOSTART" dip switch to "OFF". The amplifier mode can also be switched by a remote control unit connected to the respective inputs on the amplifier. Two pairs of connectors are provided, 1 and 2 for a 12 V DC type remote control, and 3 and 4 for an external switch or relay type control. Do not connect two remote controls to the to the speaker at the same time. Activate the function by turning the "REMOTE CONTROL" dip switch on the amplifier panel to "ON". Note that the remote control overrides the "autostart" function. may only be undertaken by qualified service personnel. Safety considerations 1. Servicing and adjustment must only be performed by qualified service personnel. It is forbidden to use this product with an unearthed mains cable, which may lead to personal injury. To prevent fire or electric shock, do not expose the unit to water or moisture. Do not place any objects filled with liquid, such as vases on the speaker or near it. Note that the amplifier is not completely disconnected from the AC mains service unless the mains power cord is removed from the amplifier or the mains outlet. This equipment is capable of delivering Sound Pressure Levels in excess of 85 dB, which may cause permanent hearing damage. Setting the tone controls The acoustic response of the system may also have to be adjusted to match the acoustic environment. The adjustment is done by setting the three tone control switch groups 'treble tilt', 'bass tilt' and 'bass roll-off' on the rear panel of the amplifier. [. . . ] Refer to supplier for full sales and guarantee terms. HT206B, HT208B and HT210B Operating Manual SYSTEM SPECIFICATIONS HT206B Free field frequency response (+/- 2, 5 dB) Maximum peak acoustic output per pair @ 1m measuring distance with music material: Self generated noise level in free field @ 1 m on axis (A-weighted) Drivers, magnetically shielded Bass Treble Bass amplifier power output Treble amplifier power output Amplifier system distortion at nominal output THD SMPTE-IM CCF-IM DIM-100 Harmonic distortion at 90 dB SPL @ 1 m on axis Input impedance Input connectors Crossover frequency Mains voltage Power consumption Standby Idle Full output Weight Dimensions Height Width Depth Maximum ambient temperature HT208B HT210B AUDIO PRECISION HT206B anec LEVEL(dBr) vs FREQ(Hz) 17JAN 03 12:00:26 100 55 Hz - 18 kHz >115 dB SPL 48 Hz - 22 kHz >120 dB SPL 42 Hz - 21 kHz 95 >124 dB SPL 90 BASS TILT TREBLE TILT 85 10 dB 10 dB 10 dB 80 75 BASS ROLL-OFF 170 mm (61/2") 19 mm (3/4") metal dome Short term 80 W Short term 50 W 210 mm (8") 25 mm (1") metal dome Short term 120 W Short term 120 W 250 mm (10") 25 mm (1") metal dome Short term 180 W Short term 120 W 70 65 60 20 100 1k 10k 20k 0. 08% 0. 08% 0. 08% 0. 08% < 3 % (60. . . 150 Hz) < 0. 5 % ( >150 Hz) 0. 05% 0. 05% 0. 05% 0. 05% < 1 % (50. . . 100 Hz) < 0. 5 % ( >100 Hz) 0. 05% 0. 05% 0. 05% 0. 05% < 1 % (50. . . 100 Hz) < 0. 5 % ( >100 Hz) Figure 3. The effect of treble tilt, bass tilt and bass roll-off controls on the free field response of the HT206B. AUDIO PRECISION HT208B anec LEVEL(dBr) vs FREQ(Hz) 21JAN 03 12:10:45 100 10 kOhm balanced/unbalanced XLR balanced, RCA unbalanced 95 90 BASS TILT TREBLE TILT 3. 5 kHz 2. 2 kHz 1. 8 kHz 85 100 / 200 or 115 / 230 V 7 VA 10 VA 100 VA 7, 6 kg (17 lbs) 312 mm (12 1/4") 200 mm (7 7/8") 240 mm (9 1/2") 35° C (95° F) 5 VA 15 VA 160 VA 12, 7 kg (28 lbs) 395 mm (15 9/16") 250 mm (9 7/8") 290 mm (11 7/16") 5 VA 20 VA 200 VA 21, 7 kg (48 lbs) 495 mm (19 1/2") 320 mm (12 5/8") 290 mm (11 7/8") 80 75 BASS ROLL-OFF 70 65 60 20 100 1k 10k 20k Figure 4. The effect of treble tilt, bass tilt and bass roll-off controls on the free field response of the HT208B. CONTROLS AND FEATURES HT206B Input sensitivity adjustment Treble Tilt control in 2 dB steps from +2 to -4 dB & MUTE Bass Tilt control in 2 dB steps from 0 to -8 dB & MUTE Bass Roll-Off control in 2 dB steps from 0 to -8 dB Autostart Remote control Led shutoff HT208B HT210B AUDIO PRECISION HT210Banec 100 LEVEL(dBr) Vs FREQ(Hz) 02 JAN 03 10:17:22 +6 to ­6 dBu for 100dB @ 1 m, continuously variable 95 @ 15 kHz @ 100 Hz @ 50 Hz @ 15 kHz @ 80 Hz @ 40 Hz @ 15 kHz 90 TREBLE TILT BASS TILT @ 80 Hz 85 @ 40 Hz 80 Automatic power mode switching Power mode switching by 12 V trigger or external switch / relay type remote control Shuts off mode indicator led 75 70 BASS ROLL-OFF 65 60 20 100 1k 10k 20k Figure 5. The effect of treble tilt, bass tilt and bass roll-off controls on the free field response of the HT210B. Genelec Document D0050R001. [. . . ]