background image

DSP

EAKER

 S

ERVO

 300

2.2.4 Automatic Wake­up and Stand­by

The   speaker   will   go   to   power   saving   “Stand   By”   mode   deactivating   it's   power 
amplifiers when it has detected no input signal in 15 minutes. The speaker will also 
wake up automatically when it detects signal at the audio input. Wake up will take a 
few   seconds   as   the   power   amplifiers   must   be   turned   on.   When   the   speaker   is 
detecting audio signal at the input in stand by and waking up, it will flash the led 
green once. The speaker is on when the led turns green or orange, depending on 
whether   the   Anti­Mode   correction   was   on   or   off   before   going   into   the   stand   by 
previously.

If the speaker is not used for longer periods, it is adviceable to turn it off completely 
from the power switch.

Rev. 1.6

21.06.2010

Page 9 (16)

Summary of Contents for Servo 300

Page 1: ...DSPeaker Servo 300 User s Manual Revision History Rev Date Author Affected chapters Description 1 0 10 6 2010 ToLi All Original English version ...

Page 2: ...rds the ultimate goal of perfect audio our design philosophy has always been to remove the biggest obstacles first with solutions that are both efficient and effortless for the user We are confident that DSPeaker Servo s unmatched sonic performance and ease of use will exceed your expectations Please take a moment to familiarize yourself with the product This manual contains valuable information f...

Page 3: ...rol 8 2 1 4 Automatic Wake up and Stand by 9 2 2 Errors and Warnings 9 2 2 1 Blinking Red Status LED 9 2 2 2 Status LED is Lit Red 9 2 2 3 Thermal Shut down 10 2 3 Placing the Servo 300 Speaker 10 2 4 Anti ModeTM Automatic Room Correction 10 2 5 ASCM Calibration 11 2 6 Output Gain Switch 12 3 Measurements 13 4 Technical specification 14 5 Manufacturer 14 6 Support 14 Rev 1 6 21 06 2010 Page 3 16 ...

Page 4: ... Panel 1 Control button 2 Anti ModeTM calibration microphone input jack 3 Output gain switch Servo control 4 Input gain control 5 Service port PC connection 6 Balanced XLR audio input connector 7 Power cord connector MAINS INPUT 8 Power switch Rev 1 6 21 06 2010 Page 4 16 1 2 3 4 5 6 7 8 ...

Page 5: ...DSPEAKER SERVO 300 1 2 Front 1 Status LED Rev 1 6 21 06 2010 Page 5 16 1 ...

Page 6: ... to MAINS INPUT connector and the other end into wall outlet 6 Connect DSPeaker Servo 300 power on power switch to 1 7 Calibrate the speaker by pressing and holding the control button for about 4 seconds While the calibration process measures the room avoid making loud noises Calibration can be aborted by pressing the button again during calibration 8 After calibration you can set the input gain i...

Page 7: ...resonances at the frequency range 24 152 Hz Because of this Servo 300 will feature a lot more accurate bass control than for example bass tone controls present in other active loudspeakers For improved stereo imaging it is adviceable to use acoustic treatment in the side walls next to Servo 300 or maintain at least 25 50 cm 10 20 inches distance between the speaker and side wall Shorter radius eve...

Page 8: ...the speaker 2 2 2 Status LED Status LED signals the user about different situations and statuses Green LED indicates that the speaker is on and Anti mode is engaged Orange LED indicates that the speaker is on and Anti Mode bypassed Blinking orange LED indicates that the speaker is performing calibration Red LED indicates that the speaker is in Stand By state or in the middle of calibration Blinkin...

Page 9: ...ke up will take a few seconds as the power amplifiers must be turned on When the speaker is detecting audio signal at the input in stand by and waking up it will flash the led green once The speaker is on when the led turns green or orange depending on whether the Anti Mode correction was on or off before going into the stand by previously If the speaker is not used for longer periods it is advice...

Page 10: ...eadroom until the level is too high and the A D converter saturates However if the sound occasionally starts to distort it is adviceable to adjust the input gain control down to lower the input voltage and prevent distortion 2 3 2 Status LED is Lit Red When the speaker is in standby mode the status led is red If the status led turns to red in the middle of the normal operation with input audio pre...

Page 11: ...calibration will begin when the control button is pressed and held for about four seconds The calibration will feature two consecutive measurement sweeps each taking approximately one minute It is adviced not to make any loud noises while the calibration is in progress The calibration process automatically adjusts the volume to optimal levels The calibration can be cancelled anytime by pressing th...

Page 12: ...alibration will measure how much the suspension compliance has been altered since the original values and automatically compensate for these The settings are stored in the internal memory of Servo 300 where they will remain until another ASCM calibration overwrites them Before calibration the output gain must be at 0dB or the calibration will not begin The ASCM calibration is performed quite like ...

Page 13: ...r field usage 6dB will drop the output level by 6dB which will result in lower noise level but also decreased maximum sound pressure level This setting is ideal for listening in far field in a very silent room where the ambient background noise is low 12dB will drop the output level by 12dB which will result in very low noise level but also decreased maximum sound pressure level This is an ideal s...

Page 14: ...DSPEAKER SERVO 300 Rev 1 6 21 06 2010 Page 14 16 ...

Page 15: ...DSPEAKER SERVO 300 3 Measurements Rev 1 6 21 06 2010 Page 15 16 ...

Page 16: ... 21000Hz 6dB Harmonic distortion 85dB 1m 0 1 1kHz Dynamic range unweighted 90dB DSP VS8053 DSP functions DSP core VSDSP4 8053 Digital Cross over 2150Hz Linear Phase Anti ModeTM correction range 24 152Hz Anti ModeTM resolution 0 5Hz Anti Modal filters 6 Digital equalizers 45 20000Hz 1dB on axis Time domain EQ resolution 20µs Total latency group delay 12ms ASCM correction range 11mm excursion 5 Manu...

Reviews: