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Hertz ML 3800 [15/22] Ml 3800
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English
Sealed Box
Bass Reflex Box
ML 3800
ML 2500
Extension
Punch
SPL
Extension
Punch
SPL
Extension
Punch
SPL
ML 3000
Find your Box
Sealed Box
Dimension
Reflex Box
Dimension
Sealed Box
Performance
Reflex Box
Performance
Enclosure Design
The ML Subwoofers electro-acoustic parameters are optimized for use in an enclosure. In this
manual we have provided the specifications for two different sealed and reflex (vented) enclosure
configurations for each model, which vary in size and performance. For each type you will find
projects that favor size, for minimum possible bulk, or for absolute performance, to the detriment
of the space taken up.
ALL OF THESES PROJECTS HAVE BEEN DESIGNED, TESTED AND OPTIMIZED IN THE
LABORATORY AND THEN PERFECTED IN THE ACTUAL VEHICLE INTERIOR.
THE REPORTED CURVES ARE NOT SOFTWARE SIMULATIONS; THEY ARE ACTUAL
DATA OBTAINED BY SOUND MEASUREMENTS DEVICES IN THE VEHICLE.
ML subwoofers can be used in many other enclosure configurations other than the ones listed in
this manual. With the help of a computer simulation software, you may design an enclosure that
is better suited for the acoustics of your vehicle and your desired performance. There are some
practical suggestions to follow when designing an enclosure.
Please remember that:
1_ In the designs included in this manual, the box volume includes the displacement volume of
the speaker itself considering it is mounted with the frame/magnet structure inside the box;
2_ If you invert the subwoofer, with the frame/magnet assembly on the outside of the enclosure,
you should subtract the speaker displacement volume (Total driver displacement) from the
suggested enclosure volume;
3_ The suggested designs, both sealed and reflex (vented), have been optimized considering
the use of a sheet damping material like the AZ Audiocomp FONOFORM on all the internal walls
of the enclosure, other than the speaker’s baffle.
4_ The tuning ports specified in the reflex (vented) designs are meant for mounting near one of the
box corners and their material displacement volume is already included in the overall box volume;
5_ If you wish to design an enclosure with several subwoofers, use only the same subwoofer model
using the same enclosure configuration. Each subwoofer should have its own separate enclosure
within the single structure.
Find your Box
The table below summarizes the main acoustic features for each suggested project. Choose the
kind of sound and performance that you wish to obtain according to your needs and personal
taste. The values are expressed according to the following parameters:
Extension
Indicates the system ability to extend to the lowest of frequencies; that is how deep low frequencies
can be heard and felt. A high value indicates very good extension.
Punch
Means the response speed of the system to musical transients. A high value means a sharp,
impactful sound. Lower values indicate a softer bass.
SPL
This parameter indicates the highest sound pressure that the system can achieve. To obtain very
high SPL level systems, we recommend you choose the projects with a higher value.
Dimension:
This design is deliberately small in order to optimize the available
space; this is the perfect solution for those who have a small space
but do not want to give up a powerful bass.
Performance:
Bigger, both in dimensions and sound, it responds with a full
bodily bass with excellent extension and dynamics.
Dimension:
Almost the same dimensions as the Sealed Box Performance, yet offering
a wider extension, with a stronger sound and an excellent articulation.
Performance:
Great power handling, high sensitivity values and great impact; this is
the perfect design for powerful bass with every kind of music.
Those who wish to find more information on building these enclosures can visit the following address:
www.hertzaudiovideo.com, where technical files are available in PDF format containing all the tables
with precise measurements.
Caution
Design
Содержание
- Electro acoustic parameters 1
- Indice 2
- Introduction 2
- Italiano 2
- Attenzione 3
- Italiano 3
- Precauzioni generali 3
- Technology 3
- Attenzione 4
- Design 4
- Find your box 4
- Italiano 4
- Attenzione 5
- Design 5
- Dimension 5
- Fonoassorbente fonoform su tutte le pareti esclusa quella dell altoparlante 5
- Fonoassorbente fonoform su tutte le pareti esclusa quella dell altoparlantei 5
- Italiano 5
- Ml 2500 5
- Ml 3000 5
- Performance 5
- Reflex box 5
- Sealed box 5
- Tubo reflex ar 70 5
- Tubo reflex ar 80v 5
- Tutte le quote indicate sono interne ed espresse in millimetri mm materiali fonoassorbenti e tubi reflex sono scelti dal catalogo az audiocomp 5
- Attenzione 6
- Design 6
- Free air dc resistance 6
- Italiano 6
- Ml 2500 ml 3000 ml 3800 6
- Parallel 6
- Series 6
- Speaker 6
- Connessioni serie parallelo 7
- Italiano 7
- Technology 7
- Consigli pratici 8
- Damping materials 8
- Installation 8
- Italiano 8
- L 25 30 8
- Mm min 8
- V olume t ablet r eflex p ort 8
- Come fissare il sub 9
- Come girare il gasket 9
- Griglia 9
- Installation 9
- Italiano 9
- Italiano 10
- Loudness 10
- Taratura elettroacustica 10
- Taratura reflex 10
- Tuning 10
- Cablaggio 11
- Fuori garanzia 1 danni cagionati da incidenti abuso funzionamento improprio acqua furto 2 assistenza tecnica eseguita da chiunque non sia autorizzato dall elettromedia 3 qualsiasi prodotto su cui il numero di serie sia stato deturpato alterato o rimosso 4 danni cagionati da sovrapilotaggio o amplificazione in zona di funzionamento non lineare con eccessivo tasso di distorsione elettromedia non risponde in alcun modo di eventuali danni generati dalla non osservanza delle raccomandazioni contenute in questo manuale 11
- Il cablaggio di potenza riveste un ruolo estremamente importante poiché influenza direttamente il fattore di smorzamento del sistema nella tabella allegata potete trovare un indicazione della sezione del cavo consigliata in funzione della lunghezza e della potenza applicata 11
- Italiano 11
- La tabella si riferisce alla potenza continua su un carico di 4 ohm qualora il carico scenda si dovranno aumentare proporzionalmente le dimensioni del cavo 11
- Limiti di garanzia 11
- Technical 11
- Vi preghiamo di leggere con cura i termini della garanzia e di conservare sia il libretto che la scatola originale per qualsiasi evenienza l elettromedia sui prodotti hertz offre una garanzia limitata alle seguenti condizioni durata della garanzia 2 anni questa garanzia è applicabile solamente ai prodotti hertz venduti da rivenditori autorizzati hertz i prodotti che risulteranno difettosi durante il periodo della garanzia saranno riparati oppure sostituiti con un prodotto equivalente a discrezione dell elettromedia 11
- English 13
- Introduction 13
- Table of contents 13
- Caution 14
- English 14
- Technology 14
- Tecnology 14
- Warning 14
- Caution 15
- Design 15
- English 15
- Find your box 15
- Ml 250 15
- Ml 3000 15
- Ml 3800 15
- Sealed box dimension reflex box dimension sealed box performance reflex box performance 15
- All of the dimensions shown on the illustration are internal measurements expressed in millimetres mm damping materials and reflex tubes are chosen from the az audiocomp catalog 16
- Caution 16
- Damping material fonoform on all internal walls except for the speaker s baffle 16
- Design 16
- Dimension 16
- English 16
- Ml 2500 ml 3000 16
- Performance 16
- Reflex box 16
- Reflex tube ar 70 16
- Reflex tube ar 80v 16
- Sealed box 16
- Caution 17
- Design 17
- English 17
- Free air dc resistance 17
- Ml 2500 ml 3000 ml 3800 17
- Parallel 17
- Series 17
- Speaker 17
- Connection configuration 18
- English 18
- Technology 18
- Damping materials 19
- Design advice 19
- English 19
- Installation 19
- L 25 30 19
- Mm min 19
- V olume t ablet r eflex p ort 19
- English 20
- Fixing your sub 20
- Grille 20
- Installation 20
- Turning the gasket 20
- Electro acoustic tuning 21
- English 21
- Loudness 21
- Reflex tuning 21
- Tuning 21
- As they directly affect the system s damping factor the cables used to connect the subwoofer are extremely important the following table indicates the cable section gauge we recommended according to the length and power applied 22
- Connecting cables 22
- English 22
- Please read the warranty terms carefully and keep both the manual and the original box for all eventualities elettromedia provides a restricted warranty on the hertz products according to the following terms warranty duration 2 years this warranty is applicable only to hertz products sold by hertz authorized dealers products found to be defective during the warranty period will be repaired or replaced with an equivalent product at elettromedia s discretion 22
- Technical 22
- The table refers to continuous power with 4 ohm load if load decreases the cable size needs to be proportionally increased 22
- Warranties for product purchased and used in countries outside italy are covered by the hertz distributor in that respective country warranty length and policies are outlined and enforced by the distributor 22
- Warranty is void 1 for damage caused by accidents abuse improper operation water theft 2 if after sale service is performed by anyone other than elettromedia authorized service centers 3 if serial number has been spoiled altered or removed from the product 4 for damages caused by overdriving or amplification excessive distortion due to non linear functioning of power supply elettromedia accepts no liabilities for any damage resulting from disregarding the warnings herein 22
- Warranty restrictions 22
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