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Room modes

Room modes come from reflections in the room.

Sound directly from the speakers and sound
reflections forms a pattern in the room.

Same frequency in phase gives you room modes

Dip

If the frequency is in opposite phase, they will put
out each other and you get a dip.

Содержание XTZ 99 W12 DSP

Страница 1: ...1 26 XTZ 99 W12 DSP Active subwoofer with integrated DSP Digital Sound Processor User manual 2007 XTZ AB www xtz se...

Страница 2: ...cal presentation 5 Preparations 7 Practice of sound Installation and placement tips 8 Mounting 10 Functional reference 11 Quick reference 13 Functions Area of usage Sound adjustment 14 Technical expla...

Страница 3: ...ou need to enhance your current system or create a totally new one The DSP Powered Subwoofer combines a 300 watt continuous power amplifier heavy duty 12 woofer and a DSP with absolutely the best tech...

Страница 4: ...and most important to different rooms still preserving the highest quality of sound Getting the same functional flexibility and achieving the same precision is not possible with traditional analogue t...

Страница 5: ...ong acoustical problems To build a perfect listening room is extremely expensive With the DSP technology we can create a good balanced sound in every room Amplifier We have equipped the XTZ W12 DSP wi...

Страница 6: ...tric and graphic equalizer phase correction low cut and high cut filters and delay There are many cheap equalizers on the market but the most are not good enough to maintain the high sound quality for...

Страница 7: ...back panel matches your local mains voltage If the product is cold wait to connect the power cable till it reaches room temperature If you don t do this you can cause damage of the product Accessorie...

Страница 8: ...Thus for a sound as clear as possible the loudspeaker should be placed at least 30 cm about 12 inch away from the wall Some constructions are made to be placed closed to a wall Furniture Be aware that...

Страница 9: ...ns should be mechanically stable both power signal and loudspeaker cables Signal cables should be separated from other cables Front speakers To get the best result the front speakers should be placed...

Страница 10: ...use this because it needs less work to adjust the subwoofer to the room perfectly If you put the subwoofer inside a cabinet the amplifier needs to be cooled by circulating air Flush mounting of the su...

Страница 11: ...t 15 Power connector 16 Main switch 17 Power select 1 Input gain INPUT GAIN METER Indicate the input level Should be as high as possible but without getting the red INPUT GAIN diode flashing this give...

Страница 12: ...232 PC connector Connector for PC For the PC remote software The program is in price included but you need to download it from www xtz se 13 Input selector INPUT SELECTOR Select input between XLR RCA...

Страница 13: ...level can be adjusted in the range of 12dB Select the frequency with the buttons FUNCTION Select the level with the buttons VALUE It is also possible to do a setting with the parametric equalizer and...

Страница 14: ...Gain Adjust the input gain The level indicates the input gain on the display In the left bottom corner of the Function 1 display the number of recently selected preset e g P4 and the time of day is s...

Страница 15: ...n 9 80Hz Function 10 100 Hz Function 11 125 Hz The level can be adjusted in the range of 12dB Select the band frequency of interest with the buttons FUNCTION and adjust the level with the buttons VALU...

Страница 16: ...ever is most suitable Select slope A normal value is 24dB but try what suits you best With a perfect adjusted subsonic filter you achieve the benefits Higher useful power the subwoofer can handle high...

Страница 17: ...ween the main loudspeakers and subwoofer causes a drop in the frequency response of the whole system at the crossover frequency The graphs to the right Fig 1 show the effect of phase difference to the...

Страница 18: ...e is the right value but depending on placement and equipment try find the mode that gives the most bass energy the polarity change is equivalent to change the phase by 180 degree 1 Adjust the level o...

Страница 19: ...W12 DSP than the main speaker Function 19 33 Function 19 33 contains the parametrical equalizer The parametrical equalizer has 5 bands Each band has 3 functions 1 Frequency 2 Amplitude 3 Q factor Eac...

Страница 20: ...th of the bell curve Frequency is measured in Hz Herz and decides were in the spectra compensation can be done Range 16 250Hz Amplitude is measured in dB and decides how much compensation should be do...

Страница 21: ...and again on the subwoofer the last used preset will be active PRESET 1 MUSIC Suitible for music Preset 1 is special read only setting which flatten all equalizer bands and set up all the other parame...

Страница 22: ...ssure than with 2 closed reflex gates closed box 1st mode no plugs in the reflex gates No plugs in the gates will provide a quick bass character especially suitable for larger rooms where the lower fr...

Страница 23: ...equalizer that allows to increase or decrease boost or cut signal amplitude in a fixed number of frequency bands of an audio equipment Parametric equalizer PEQ An electronic or DSP equalizer that all...

Страница 24: ...eflections in the room Sound directly from the speakers and sound reflections forms a pattern in the room Same frequency in phase gives you room modes Dip If the frequency is in opposite phase they wi...

Страница 25: ...00 W RMS in 4 ohm 400 W RMS in 2 ohm Power handling driver 800 W Short term IEC 268 5 400 W Long term IEC 268 5 Driver 12 Coated non pressed paper moulded aluminium frame 100 oz magnet 6 5kg Impedance...

Страница 26: ...nd pressure levels in excess of 85 dB which may cause permanent hearing damage Free flow of air around the subwoofer is necessary to maintain sufficient cooling Guarantee This product is supplied with...