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L3 Pro Dome 

Midrange

Dome

You will find no composite or metal cone 
materials used on the L3 Pro, as our approach 
to point-sourcing is to allow the Legatia Pro 
midrange driver to effectively play into upper treble 
frequencies.  The Legatia L3 Pro is a dome-type 
driver consisting of a proprietary Japanese fine 
cotton hybrid diaphragm with extremely low 
moving mass.  Cotton is widely acknowledged as 
the best-damping material for dome midrange 
drivers, as it provides the near optimum balance of 
strength and weight.  The dome has been treated 
with a water resistant element to accommodate 
door mounting, or other areas prone to occasional 
contact with liquid.  The dome design offers an 
exceptional dispersion pattern to make for flexible 
installation and speaker location. The Legatia L3 Pro 
has an outstanding extended frequency response; 
the usable frequency range of this driver exceeds 
seven complete octaves of usable bandwidth 
on-axis (250 Hz – 13,000+ Hz).  Even off-axis, the L3 
Pro faithfully recreates more than five full octaves 
of information, for the ultimate “small-format” 
midrange/full-range driver.

Suspension

The surround is an extension of the fine Japanese 
treated cotton fabric which is highly consistent, 
and does not suffer the variance of natural rubbers.  
This surround terminates mechanical vibrations 
well, having a low stiffness for positive damping of 
resonances.

Terminals

The Legatia L3 Pro comes equipped with 
heavy-duty nickel-plated spring-loaded push 
terminals for both positive and negative.  The 
terminals optimize contact, and give the end 
user flexibility in tinned wire or binding post 
terminations 

Summary

The Legatia L3 Pro is the world’s finest 
multi-purpose super high-end dome midrange 
speaker driver.  Mechanical and electrical 
parameters are amenable to a variety of different 
installations and speaker locations.  This driver 
is intended to be used in a variety of installation 
protocols and arrangements.  The size of the L3 
Pro allows it to be mounted in typical “3-inch” and 
“4-inch” midrange locations within a vehicle, or in 
custom locations at the discretion of the end-user, 
even in areas where there may not be adequate 
airspace behind the driver.

At home in virtually any arrangement, the L3 
Pro is Hybrid Audio Technologies’ Legatia Pro 
high-end small-format midrange offering, boasting 
exceptional performance and a design philosophy 
that goes hand in hand with true high-fidelity 
playback.

Legatia Pro 

Speaker 

Design

 

© Hybrid Audio Technologies • Cumming, GA • 770.888.8200

© Hybrid Audio Technologies • Cumming, GA • 770.888.8200

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Summary of Contents for Legatia Pro Series

Page 1: ...1240 Oak Industrial Lane Cumming Georgia 30041 United States Legatia Pro Series Component Speakers Installation Reference Manual T 1 770 888 8200 F 1 888 886 4605 hybrid audio com ...

Page 2: ...Installation Pages 36 47 Component Specific Information Pages 6 35 Speaker Attributes Specifications Parameters and Mechanical Drawings 04 Warranty Pages 48 49 Hybrid Audio Technologies Cumming GA 770 888 8200 Hybrid Audio Technologies Cumming GA 770 888 8200 2 3 2 3 ...

Page 3: ...nstallation advice Thank you and happy listening Welcome and Introduction by Scott Buwalda Founder We realize that you have a choice in loudspeakers and are thrilled that you have chosen the Legatia Pro series component speakers For more information about Hybrid Audio Technologies our philosophies regarding high end mobile audio to learn more about our lifetime guaranteed value program and for inf...

Page 4: ...relates to how far the speaker can move in either direction without appreciable distortion The Legatia Pro dome midrange designs boast exceptional one way linear excursion Xmax Dome The shape weight and strength of the Legatia Pro midrange domes relate directly to the extended frequency response of the Legatia Pro range of drivers The Legatia Pro domes are convex shaped hybrid fine fabric Japanese...

Page 5: ...tremely low music tones The dome topology better approximates a true monopole than a similarly sized cone midrange especially in the lower one third of its frequency response Notably what also makes the L3 Pro a very good approximation of a true monopole is the fact that the flange body of the driver is solid machined aluminum void of interstitial spaces which terminates resonances well Hybrid Aud...

Page 6: ...e to the suspension The Thiele Small Response Paramters are Re The D C resistance of the voice coil measured in Ohms Sd The surface area of the speaker Fs The resonant frequency of the speaker Qes The electrical Q of the speaker Qms The mechanical Q of the speaker Qts The total Q of the speaker Vas The volume of air having the same acoustic compliance as the speaker s suspension Enclosure Recommen...

Page 7: ...ith a Φ24 5 3 H NdFeB neodymium magnet structure to ensure a relatively small footprint size and shallow depth A perforated grille protects the dome The Pro L1 boasts a fully machined aluminum body the body is machined aluminum not cast aluminum The dense metal structure of the tweeter housing helps to reduce resonances within the body of the tweeter for effective reproduction of extremely low mus...

Page 8: ... Pro in a simple baffle without worry of separating front and back waves nor building an enclosure The rear of the body propagates diaphragm back pressure into the tuned chamber to provide adequate communication to the back of the dome for acoustic suspension and proper operation Housing and Tuned Chamber In addition to the aluminum body of the Pro series drivers the L3 Pro includes a cast polypro...

Page 9: ...on fabric which is highly consistent and does not suffer the variance of natural rubbers This surround terminates mechanical vibrations well having a low stiffness for positive damping of resonances Terminals The Legatia L3 Pro comes equipped with heavy duty nickel plated spring loaded push terminals for both positive and negative The terminals optimize contact and give the end user flexibility in...

Page 10: ...on beyond simple tweeter attenuation We believe in making the speaker great not trying to fix a poor speaker with filtering and attenuation There s no crossover in the world that can make a poorly designed speaker sound good This is why there s a relatively simple high quality crossover topology employed on the Legatia L2x crossover with no additional board mounted equalization And this is also wh...

Page 11: ...or example it is advisable to install the passive crossovers inside the passenger compartment versus the door since the door is exposed to repeated opening and closing shock which may damage the delicate passive crossover components or cause soldered joints to break over time Likewise moisture may be present in a door installation Finally if you are mounting the passive crossovers in the kick pane...

Page 12: ...ge midbass and tweeter pairing Hybrid Audio manufactures The following are the L3x s design attributes Filter Set The L3x is a bi wired three way passive crossover that has the following filters Lowpass midbass 300 Hz at 12 dB octave Linkwitz Riley Bandpass midrange 300 Hz to 6 000 Hz at 12 dB octave Linkwitz Riley Highpass treble 6 000 Hz at 12 dB octave Linkwitz Riley The only filtering on the b...

Page 13: ...x mounting location carefully The L3x contains parts that are susceptible to damage through repeated shock moisture and electromag netic interference For example it is advisable to install the passive crossovers inside the passenger compartment versus the door since the door is exposed to repeated opening and closing shock which may damage the delicate passive crossover components or cause soldere...

Page 14: ...truction Φ24 5 3 H NdFeB Φ49 5 X 5mm H NdFeB Recommended Minimum Crossover Frequency 2 000 Hz at 24 dB octave highpass 400 Hz at 24 dB octave highpass Pnom Rated Power Input No Crossover 20 watts AES Standard 30 watts AES Standard Pmax Rated Power Input No Crossover 40 watts AES Standard 60 watts AES Standard Pmax With Recommended Minimum Crossover 100 watts 80 watts Resonance Frequency Fs 700 Hz ...

Page 15: ...Legatia L1 Pro Mechanical Drawing Legatia L3 Pro Mechanical Drawing Hybrid Audio Technologies Cumming GA 770 888 8200 Hybrid Audio Technologies Cumming GA 770 888 8200 28 29 ...

Page 16: ...Legatia L2x Mechanical Drawing Legatia L3x Mechanical Drawing Hybrid Audio Technologies Cumming GA 770 888 8200 Hybrid Audio Technologies Cumming GA 770 888 8200 30 31 ...

Page 17: ...Legatia L3 Pro Frequency Response Graph Legatia L1 Pro Frequency Response Graph Hybrid Audio Technologies Cumming GA 770 888 8200 Hybrid Audio Technologies Cumming GA 770 888 8200 32 33 ...

Page 18: ...Legatia L2x Frequency Filter Plot Legatia L3x Frequency Filter Plot Hybrid Audio Technologies Cumming GA 770 888 8200 Hybrid Audio Technologies Cumming GA 770 888 8200 34 35 ...

Page 19: ... techniques concepts and principals where a little bit of additional installation work can net immense gains in overall sound quality There are certainly many things you can do to improve your mobile audio system such as addition of amplification a dedicated subwoofer system higher gauge speaker wire and higher end passive crossovers and active crossovers All of these things require an additional ...

Page 20: ...e Legatia Pro midrange should be placed as far forward from your listening position as possible and every effort should be made to optimize time and intensity domain characteristics of the installation Lesson Two Equalization of Pathlength Differences Continued In scenario a we show the installation of the Legatia Pro midrange in the dashboard or high in a door panel As you can see from the diagra...

Page 21: ...good quality brand name self adhesive damping product a solid wood mounting baffle with sound damping treatment will augment the Legatia Pro installation by eliminating resonances Lesson Four Point Sourcing The term point sourcing is often used to describe the technique of having a single pair of speakers in an installation cover the majority of the critical middle band frequencies In many install...

Page 22: ...he chosen crossover frequencies should be evaluated for sonic character while balancing distortion and power compression at high amplitude levels Advanced Installation of the Legatia Pro Component Speakers Continued Mounting baffle dimensions While building baffles is important it is notable that mounting baffle size is equally important All mounting baffles should be kept as small as possible wit...

Page 23: ...ndent or perhaps to improve image placement or stage coherency Advanced Installation of the Legatia Pro Component Speakers Continued Time Correction It is our humble opinion that time correction should only be used in three different circumstances 1 When the installer recognizes that a vehicle cannot image properly from both seated positions and it seems more plausible to make the vehicle stage an...

Page 24: ...pplied treatments there is a point where the vehicle can begin to approach semi anechoic conditions and lose its liveliness which is not ideal Reflections are all around us and are a part of our day to day lives It is our opinion that some lateral reflection is a good thing it helps to establish stage boundaries and gives the recoded playback and more visceral and believable sound The first princi...

Page 25: ...echnologies 2 physical abuse to overload of or misuse of the product or operation thereof in a manner inconsistent with the use indicated in the instructions 3 any use of the product other than that for which it was intended or 4 shipment of the product to Hybrid Audio Technologies for service This warranty does not cover labor costs Hybrid Audio Technologies is not liable for any special incident...

Page 26: ...1240 Oak Industrial Lane Cumming Georgia 30041 United States T 1 770 888 8200 F 1 888 886 4605 hybrid audio com ...

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