User manual GENELEC HT205

[. . . ] The fast, low distortion amplifiers are capable of driving a stereo pair to peak output sound pressure levels in excess of 110 dB at 1 m. The unit incorporates special circuitry for driver overload protection. Variable input sensitivity allows for accurate level matching to the decoder or preamplifier. input is made via a 10 kOhm balanced (XLR) or unbalanced (RCA) connector (see fig. If the signal source has suitable balanced outputs, we recommend the use the XLR connector and balanced interconnect cables due to their better resistance to interference. [. . . ] 2) and 'bass Crossover The amplifier unit contains an active crossover. This is the ideal method for dividing the input signal between the driver units, allowing the overall response of the system to be optimized to an extent impossible with a passive system. The active crossover controls ('treble tilt', 'bass tilt' and 'bass rolloff') allow the HT205 to be exactly matched to any application. Amplifiers The amplifier unit is built into the Figure 2: HT205 outer dimensions, with the reference axis between the bass and the treble drivers. Figure 3: Suggested speaker placement and alignment in a 5. 1-channel Surround system. tilt' (sw. "Treble tilt" attenuates the high frequency response above 15 kHz by two decibels. The "bass tilt" switches provide three alternative attenuation levels (-2, -4 or -6 dB) for low frequency response below 150 Hz. "Bass roll-off" switch changes the bass roll-off frequency from 65 Hz to 85 Hz (-6 dB). The factory setting is 'ALL OFF' to give a flat anechoic response. See Figure 1 for suggested tone control settings in differing acoustic environments. Figure 5 shows the effect of the controls on the anechoic response. Always start adjustment by setting all switches to 'OFF' position. Then set the switch if needed to the 'ON' position to select the response curve needed. exactly similar frequency responses, which is true in free field conditions. In a room the frequency responses change because the sound reflects from the room's boundaries. We recommend that the speakers are positioned at the same height and also at the same distance from the front and side walls. Then the reflections, and therefore the changes to the frequency response, are as similar as possible. The DCW increases the directivity of the loudspeaker; more sound is directed on-axis and less to the sides. Aim the loudspeakers towards the center of the listening area to reduce the effect of the room on the sound. This is because more direct sound is heard and reflections from walls which degrade the sound are minimised. accommodate a standard microphone stand. There is a provision for Omnimount® size 50 bracket, which can be attached to two threaded holes at the back of the loudspeaker with two M6x10 mm screws. There are also three keyhole slots for hanging the speaker on the wall horizontally or vertically on a 4 mm screw with a suitable wide head. Enclosed is a bag containing four large, and four small friction pads. [. . . ] Guarantee 1) Wall hanging points 2) Threaded holes for Omnimount® size 50 bracket 3) Tone control switches 4) Voltage selector 5) 6) 7) 8) XLR signal input (balanced) RCA signal input (unbalanced) Mains input 3/8" UNC thread at the base of the speaker This product is guaranteed for a period of two years against faults in materials or workmanship. Refer to supplier for full sales and guarantee terms. Figure 4: HT205 rear panel Figure 5: The curve above shows the effect of the 'treble tilt', 'bass tilt' and 'bass rolloff' controls on the free field response. Figure 6: The curve group shows the horizontal directivity characteristics of HT205 in its vertical configuration measured at 1m. The lower curve shows the systems power response. HT205 SYSTEM SPECIFICATIONS Lower cutoff frequency, -3 dB: Upper cutoff frequency, -3 dB: < 68 Hz > 20 kHz AMPLIFIER SECTION Bass amplifier output power with an 8 Ohm load: 40 W Treble amplifier output power with an 8 Ohm load: 40 W Long term output power is limited by driver unit protection circuitry. Amplifier system distortion at nominal output: THD SMPTE-IM CCIF-IM DIM 100 CROSSOVER SECTION Inputs: Input 1: XLR female, balanced 10 kOhm Input 2: RCA female, unbalanced 10 kOhm Variable from Mute to -6 dBu for 100 dB SPL output @ 1 m Volume control: Free field frequency response of system:70 Hz - 18 kHz (± 2. 5 dB) Maximum short term sine wave acoustic output on axis in half space, averaged from 100 Hz to 3 kHz: @1m > 100 dB SPL @ 0. 5 m > 106 dB SPL Maximum long term RMS acoustic output in same conditions with IEC weighted noise (limited by driver unit protection circuit): > 98 dB SPL @ 1m @ 0. 5 m > 104 dB SPL Maximum peak acoustic output per pair on top of console, @ 1 m from the engineer with music material: > 110 dB Self generated noise level in free field @ 1m on axis: < 10 dB (A-weighted) Harmonic distortion at 85 dB SPL @ 1m on axis: Freq: 75. . . 150 Hz < 3% > 150 Hz < 1% Drivers: Bass 130 mm (5") cone Treble 19 mm (3/4") metal dome Both drivers are magnetically shielded 5. 7 kg (12. 5 lb) Subsonic filter below 68 Hz : 18 dB/octave Ultrasonic filter above 25 kHz: 12 dB/octave < < < < 0. 08% 0. 08% 0. 08% 0. 08% Crossover frequency, Bass/Treble: 3. 3 kHz Crossover acoustical slopes: 24 - 32 dB/octave Treble tilt control operating range: 0 to -2 dB @ 15 kHz Bass roll-off control operating in a -6 dB step @ 85 Hz Signal to Noise ratio, referred to full output: > 90 dB Bass Treble > 90 dB Mains voltage: 100/200 or 115/230 V ±10% Voltage operating range: Power consumption: Idle Full output Bass tilt control operating range in -2 dB steps: 0 to -6 dB @ 150 Hz 9 VA 80 VA The 'CAL' position is with all tone controls set to 'off' and the input sensitivity control to maximum (fully clockwise). Weight: Dimensions: Height Width Depth 247 mm 151 mm 191 mm (9 3/4") ( 5 15/16") (7 1/2") Genelec Oy, Olvitie 5 FIN - 74100 IISALMI, FINLAND Phone: + 358-17-83 881 Fax: + 358-17-812267 Email: genelec@genelec. com Web: www. genelec. com Note! [. . . ]