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LTO

LTO

TM

Phase:

 The Sub (Subwoofer) channel provides fine control of the signal's phase, in 5 degree steps. When combined with

the 180 degrees polarity switch, it is possible to adjust the phase in the bass region through a full 360 degrees.

Freq:

 The center frequency of each band can be set between 16Hz and 16,000Hz.

Band:

 This dictates how the frequencies next to the center frequency will be affected during Gain boost or cut. With a

narrow bandwidth (minimum 0.05 octave), frequencies other than the center frequency and its immediate neighbours will

GRAPHIC EQUALIZATION (GEQ):

Each of the Front and Rear channels has a digital 10-band graphic equalizer. This type of equalizer has a fixed center
point and bandwidth. Gain is adjustable by +/- 15dB. The frequency centers are set at 31, 63, 125, 250, 500, 1000, 2000,
4000, 8000 & 16000Hz.
Use the "Ch Select" list to switch the display. An "ON/OFF" button allows instant comparisons of the sound with and
without equalization applied, while all frequency points can be set flat simply by clicking the "Reset" button.

4

4

Parameter Menus & System Set-up

IMPORTANT

IMPORTANT

Which filter type, slope and frequency you should choose will depend on the speakers you are using. Since
it is important to set-up filter points carefully to maximise speaker power handling and avoid damage, this
is usually best left to a professional car audio installer.

ADVANCED

ADVANCED

TIP

TIP

When making fine adjustments to signal phase in the bass region, bear in mind that phase is related to
frequency. You cannot "phase-align" the entire low-frequency band, but you can align the phase of two
woofers at 50Hz, for example, or whatever frequency you choose. Where dual woofers (one handled

through TOTAL RECALL, the other not) are causing cancellation because of different mounting positions

and/or mounting angles and/or vent characteristics, aligning their phase can substantially improve SPL
(sound pressure level) and clarity of bass.

PARAMETRIC EQUALIZATION (PEQ):

3-band full parametric equalization is provided on each of the channels. With this type of equalizer, frequency, gain and
bandwidth are all variable. In addition, TOTAL RECALL allows you to select from a list of different EQ contours.

5

5

Gain:

 The level at the chosen center frequency can be increased or reduced by 15dB.

Содержание Total recall

Страница 1: ...LTO LTO TM TOTAL RECALL User s Manual Version 1 0 English...

Страница 2: ...ware engineers but above all we are car audio enthusiasts who love the challenge of trying to reproduce studio quality sound inside a moving vehicle Products such as the one you now own help to make t...

Страница 3: ...er carpeting or in a totally sealed enclosure Partly enclosed equipment racks should be well ventilated using forced air cooling fans if necessary Locate away from heat sources such as engine exhaust...

Страница 4: ...RIGHT OUT 2 IN 3 ADC DELAY HPF 10GEQ 3PEQ MULTI COMP GAIN POLARITY COMP LIMT METER MUTE DAC REAR LEFT OUT 3 IN 4 ADC DELAY HPF 10GEQ 3PEQ MULTI COMP GAIN POLARITY COMP LIMT METER MUTE DAC REAR RIGHT O...

Страница 5: ...ww altomobile com html support_forum html and click on the link Data Resources Downloads and then Software Downloads R When you launch the software editor on your PC you will see the opening screen ab...

Страница 6: ...Connection to the PC RS232 9 pin socket The RS232 port allows incoming and outgoing communication between TOTAL RECALL and a PC Real time control and set up is possible Set ups made using the PC EDITO...

Страница 7: ...your computer 1 With TOTAL RECALL powered up and connected to your PC s serial port as described Run the PC EDITOR program by selecting the Tr EDITOR icon in the Windows PROGRAMS menu 2 The PC EDITOR...

Страница 8: ...stereo pairs so that IMPORTANT IMPORTANT Every time a DOWNLOAD is made to the TOTAL RECALL the USER PRESETS in the internal memory are overwritten Selecting OFFLINE from the ACTIONS menu will cause th...

Страница 9: ...be entered as above To disable Parameter Menus System Set up Help File The HELP FILE accessible from within the PC EDITOR will be updated as necessary Since software updates after the printing of this...

Страница 10: ...IC EQUALIZATION MULTI COMP 6 6 PARAMETRIC EQUALIZATION PEQ Each of the channels including the Subwoofer channel has a fully variable 3 band parametric equalizer 5 5 GAIN CONTROL SECTION Allows the out...

Страница 11: ...ahead of you even where the woofer is physically behind you CHANNEL DELAY TIME ALIGNMENT 2 2 Temperature Compensation This allows the current in car temperature to be keyed in The system uses this va...

Страница 12: ...on 4 4 Parameter Menus System Set up IMPORTANT IMPORTANT Which filter type slope and frequency you should choose will depend on the speakers you are using Since it is important to set up filter points...

Страница 13: ...stment is disabled in this mode Firstly TOTAL RECALL has 4 independent inputs feeding 5 independent output channels But what really makes it different is that it s designed for use with full range spe...

Страница 14: ...boost that will reduce back to the original curve as the input level exceeds the Threshold you have set Freq Here you set the frequency that becomes the split point for the band For the High band the...

Страница 15: ...N CONTROL SECTION 7 7 TOTAL RECALL has no analog input or output gain controls output level adjustment is handled entirely in the digital domain The input stage will accept a maximum unclipped input l...

Страница 16: ...IMITER value This value prevents the channel output from increasing by more than 1dB no matter how much the level rises at its input USEFUL USEFUL TIP TIP How we use a compressor limiter in a car is s...

Страница 17: ...or you to select a destination folder for the file You can keep the default filename or type one of your own Parameter Menus System Set up What our processor allows us to do is set our preferred upper...

Страница 18: ...mmer will be made available for setting the parameters of TOTAL RECALL as an alternative to using a PC A 25 pin socket is provided on the unit ready to accept the Programmer Please check with your dea...

Страница 19: ...ALL There are 6 Output channels for Front Rear and Subwoofer Stereo pairs of terminals are colored red right channel and white left channel Sub mono channels are color coded black Outputs should be co...

Страница 20: ...ery minimal resistance in ohms between the battery negative post and the point you have chosen on the chassis If drilling a new ground point check that there is nothing behind the panel you are about...

Страница 21: ...gent should replace if it becomes necessary The replacement fuse must be of the same type and value as originally fitted IMPORTANT IMPORTANT Before reconnecting power to the circuit double check all c...

Страница 22: ...y connected If there is only sound from one channel of a pair Front or Rear swap the Left and Right channel Input cables at the processor if the fault moves to the other channel then the fault is with...

Страница 23: ...the following conditions are not covered by this warranty Defects to expendable parts typically potentiometers switches terminals caused by normal wear and tear Misuse neglect or failure to install or...

Страница 24: ...el Ch 1 4 Sub Parametric EQ Filters 10 band per channel Ch 1 4 Graphic EQ channel delay 0 291 ms minimum step 21us Time Alignment 30 to 6 dB variable in 0 5 dB steps Output Gain 1 factory 64 user On b...

Страница 25: ...erved to ALTO Mobile Due to continued development in response to customer feedback product features specifications and or internal external design may be changed without prior notice No photocopying t...

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