DSPeaker Anti-Mode 8033 cinema Page 18 User Manual Download

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NTI

-M

ODE

8033

CINEMA

/ 8033S-II

6. Frequency Responses

6.1. Lift and Subsonic

Anti-Mode 8033 cinema

(from left to right)

Black: Bypass

Red: Lift 15-25

Blue: Lift 25-35

Green: Subsonic

Anti-Mode 8033S-II

(from left to right)

Black: Bypass

Red: Lift 15-25

Magenta: Lift 20-30

Blue: Lift 25-35

Green: Subsonic

Rev. 2.0

18.06.2012

Page 18 (20)

Summary of Contents for Anti-Mode 8033 cinema

Page 1: ...te Author Affected chapters Description 1 0 2007 11 30 TK ToLi All Original version Finnish and English for 8033B 1 8 2012 02 15 POj All Updated for Anti Mode 8033 cinema and 8033S II 1 9 2012 03 18 POj All Typo and language corrections 2 0 2012 04 23 LMa All New layout graphics ...

Page 2: ...ste disposal Also the product has been manufactured using parts and processes that follow the directive of the Restriction of the use of certain Hazardous Substances in Electrical and Electronic Equipment RoHS Intended Use The product has been designed for normal indoor use and be connected to other equipment with cables not exceeding 3m 10 feet in length If you use cables of extended length check...

Page 3: ... 11 4 Basic operation 12 4 1 Bypass mode 12 4 2 Lifting EQ 12 4 2 1 Flat 12 4 2 2 Lifting 15 25Hz 12 4 2 3 Lifting 25 35Hz 12 4 2 4 Subsonic Filter Only 13 4 2 5 Lifting 20 30Hz Anti Mode 8033S II 13 4 3 Input Level Warning 13 4 4 Output Level Warning 14 4 5 Powering Up and Down 14 4 6 Low pass Filter Selection Anti Mode 8033S II 14 5 Connection Examples 17 6 Frequency Responses 18 6 1 Lift and Su...

Page 4: ...and lifts are bypassed Flickers for 3dB input level warning if flickers constantly please reduce input level 6 LIFT25 LED Lit when the 15 25Hz lifting EQ equalization and subsonic filter is on Is dimly lit along with the LIFT35 LED when the subsonic filter is active without lift Flashes during calibration Flickers for output saturation warning please reduce input level 7 LIFT35 LED Lit when the 25...

Page 5: ...80 connectors 4 LEFT LINE IN RCA connector LFE or SUB signal from the pre amplifier or AVR 5 RIGHT LINE IN RCA connector LFE or SUB signal from the pre amplifier or AVR The dual LEFT RIGHT inputs can be used to connect stereo systems that have only stereo pre amplifier outputs instead of a single LFE output You can also connect your home theater LFE output to the LEFT input and stereo system to th...

Page 6: ...it in 7 Note All LEDs on the front panel are lit if the device has never been calibrated 8 Switch on the subwoofer and moderately reduce its volume setting 9 Press and hold both LIFT and BYPASS buttons for three seconds to start the first main calibration process Release the buttons when the LIFT25 LED starts flashing 10 If you keep holding the calibrate buttons down the calibration process will b...

Page 7: ...ode before starting the calibration See the section 4 6 on Low pass Filter Selection Press both the LIFT and BYPASS buttons on the front panel and hold them down to start the calibration process Make sure that both of the buttons are pressed down at the same time After a couple of seconds the LIFT25 LED starts flashing and calibration begins Now release the buttons and wait for the automatic calib...

Page 8: ...kly start to notice sounds on frequencies that were drowned out by the untreated peaks The calibration process raises the overall level so the subwoofer volume needs to be increased only slightly 1 6 dB For best results perform this adjustment using the AVR s subwoofer volume control If the AVR supports speaker distances you can add 90 cm 36 inches to the subwoofer distance relative to other speak...

Page 9: ...cation try locating the subwoofer in a corner of the room This causes the room modes to be excited maximally but reduces the occurrence of nulls The boundary reinforcement from the corner walls also allows the sub to reproduce lower frequencies without using extra power Run the Anti Mode calibration after relocating the subwoofer Therefore what was once considered the worst place to locate a sub i...

Page 10: ...on but is improved for a wider listening area Before performing wider area correction the first main calibration procedure described in the earlier section must be performed As previously discussed the first calibration is done with the microphone at the center of the listening area or primary listening position within the area The Anti Mode 8033 can be calibrated for wider areas by moving the mic...

Page 11: ... compensation If it is difficult to find the worst response point in the listening area Gradient compensation is a good approach Find the secondary calibration point by moving the microphone from the first calibration point toward the closest corner of the listening room by 40 90 cm 16 to 36 inches and downwards towards the floor approximately 10 20 cm 4 to 8 inches Perform the secondary calibrati...

Page 12: ...lease the LIFT button 4 2 1 Flat The first EQ setting is flat or no lifting Neither the LIFT25 nor LIFT35 LED are lit In this setting the target response is flat from 5Hz to 160Hz 8033 cinema or 250Hz 8033S II This setting is automatically changed to Subsonic Filter Only after the first main calibration You can override this and save the new setting 4 2 2 Lifting 15 25Hz The second EQ setting is L...

Page 13: ...ignal level in the Anti Mode 8033 s Analog to Digital Converter ADC is near the maximum input range the user is warned in two phases If the input signal level has only 3 dB of headroom remaining the BYPASS LED will start flickering If the level increases from this the signal starts to saturate at the ADC input and harmonic distortion increases If the input level reaches maximum the LIFT35 LED star...

Page 14: ...ady applied to the input connector s Because the Anti Mode consumes very little power you may choose to leave it powered on 4 6 Low pass Filter Selection Anti Mode 8033S II Anti Mode 8033S II allows you to select additional filters that remain active while in bypass mode Activate Neutral mode if you want to disable low pass or dipole correction modes The low pass filters are useful when the main s...

Page 15: ...and one of the 7 filter modes The selected filter is immediately activated 3 Keep the LIFT button pressed to save the filter selection A short beep is heard after settings are saved and the filter selection mode has ended Release the LIFT button 4 Quickly pressing the BYPASS button in filter select mode returns the unit to normal mode with the selected filter and bypass mode activated If you now p...

Page 16: ...oing to use the dipole modes with your subwoofer activate and save the filter setting before Anti Mode calibration The dipole correction filters are active during calibration to correct the open baffle subwoofer s natural attenuation of bass in the lower frequencies Other modes do not affect calibration and can be activated and deactivated at any time Note The calibration process always sweeps the...

Page 17: ...no dedicated LFE or sub output Anti Mode 8033 cinema can be used but it requires an additional stereo to mono converter cable The dual line inputs of the Anti Mode 8033S II also allows you to connect both a home theater and stereo system at the same time An additional stereo to mono converter cable is required Two or more subwoofers can be connected using a splitter Y cable or by using the inverte...

Page 18: ...ft and Subsonic Anti Mode 8033 cinema from left to right Black Bypass Red Lift 15 25 Blue Lift 25 35 Green Subsonic Anti Mode 8033S II from left to right Black Bypass Red Lift 15 25 Magenta Lift 20 30 Blue Lift 25 35 Green Subsonic Rev 2 0 18 06 2012 Page 18 20 ...

Page 19: ...minal frequency and with 18 dB octave suppression 6 3 Dipole Correction Responses Anti Mode 8033S II Anti Mode 8033S II dipole correction responses from right to left Black Neutral Blue 200 Hz Red 140 Hz Note These are not target or house curves The dipole correction acts first to compensate the natural 6dB octave roll off of a dipole subwoofer This pre adjusted response is then measured and strai...

Page 20: ... Maximum attenuation 96 dB Filter Q value range Unlimited 32 bit integer space Sub sonic filter 10 Hz user selectable Computation accuracy 32 40 bit integer Latency 2 7 ms 8033 cinema 8033S II Anti Mode Filters 28 36 Correction range 16 160 Hz 16 250Hz Lift filters 20Hz 30Hz 20Hz 25Hz 30Hz Lowpass filters 7 selectable modes 8 Manufacturer VLSI Solution DSPeaker Division Hermiankatu 8 B FIN 33720 T...

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