COHERENT AUDIO

A CUSTOMIZED AND HANDCRAFTED LINE OF HIGH SENSITIVITY COAXIAL LOUDSPEAKERS

DESIGNED AND BUILT WITH GREAT CARE AND ATTENTION TO DETAIL

TRUE TESTIMONIES OF FRANK FAZZILARI DESIGN AND  QUALITY

NEW 2021 LINE

CUSTOM MADE LOUDSPEAKERS - PRODUCT OF CANADA

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"THE TEN"

Gateway Floorstanding Loudspeaker

 

 

Modified  10” Radian Coaxial driver with crossover based on totally new design principles

 

As with all Coherent loudspeakers, the cabinet design follows the classical Golden Ratio proportions. To optimize lower frequency response performance, this speaker however comes only as a Floorstander (FS-MGRA / Modified Golden Ratio).

The "gateway" to the Coherent speaker line, the TEN incorporates a custom co-axial 10" driver from acclaimed Radian Audio, a custom crossover and high performance components -- all carefully selected to deliver exquisite musicality, and this regardless of music genre !

The cabinets have twin rear ports to deliver an open and transparent sound easily driven by low power tube amps, and include a unique internal baffle structure to minimize standing waves.

​​​

OPTIONS​

Optional "Premium" Veneer Finishes available - CALL 

Premium Veneer up-charge per pair : $260

Subject to longer delivery lead time.

 

Custom Made in Canada

US $            TEN FS-MGRA CLASSIC              $ 4,825  /   + $200 Flat Dropship Charge        

Coherent Audio TEN Loudspeaker.jpg

Specification

Type                     

Rear ported, concentric single driver 
 

Cabinet                 

Canadian MDF construction

Spike / Cone - ready Threading
 

Finish                      

Stained, varnished wood veneer

  • Figured Mahogany or Walnut
     

Drivers                    

  • 10 " co-axial

    • Ferrite Magnetics

  • 1.75 " high frequency dome

    • with wave guide

    • Aluminum Diaphragm

  • 150kHz Piezo Super Tweeter

Internal wiring      

Duelund / Jupiter Cu Cryo 

Crossover Coil & Cap     

  • Coherent Custom-wound Coil

  • Mundorf Supreme Classic

Performance & Dimensions


Frequency Response 

MGRA Floorstander

30 Hz - 20kHz + / - 3dB 

  • To 150kHz with Super Tweeter

 

Sensitivity                

94dB
 

Nominal Impedance                      

8 ohms
 

Input Power                    

3 - 225 Watts RMS

Connectivity

5-way Binding Posts

                           

Dimensions      

Floorstander : 14W x 13.5D x 36H

Weight

40 lbs each

"THE TWELVE"

Super Monitor & Floorstanding Loudspeaker

 

 

Modified  12” Radian Coaxial driver with crossover based on totally new design principles

 

As with all Coherent loudspeakers, the cabinet design follows the classical Golden Ratio proportions. This speaker series however offers a choice of two aesthetic designs - a Super Monitor (SM-GRA / Golden Ratio) or a Floorstander (FS-MGRA / Modified Golden Ratio).

This series includes 3 models, covering 3 Performance Levels :

  • TWELVE Premium - FS-MGRA Floorstander or SM-GRA Super Monitor (including dedicated stands)

  • TWELVE Signature - FS-MGRA Floorstander

  • TWELVE NEO + - FS-MGRA Floorstander

All speakers in the TWELVE Series incorporate a custom co-axial 12" driver from acclaimed Radian Audio, and a custom crossover with "Premium" components -- all carefully selected to deliver increasing levels of exquisite musicality, and this regardless of music genre !

The cabinets have twin rear ports to deliver an open and transparent sound easily driven by low power tube amps, and include a unique internal baffle structure to minimize standing waves.

OPTIONS

Optional "Premium"  Veneer Finishes available - CALL 

  • Premium Veneer up-charge per pair : $300 / Super Monitor  --   $350 / Floorstander

  • Subject to longer delivery lead time.

 

Custom Made in Canada

US $            TWELVE FS-MGRA PREMIUM               $ 6,150  /   + $250 Flat Dropship Charge

 

US $            TWELVE FS-MGRA SIGNATURE            $ 8,350  /   + $250 Flat Dropship Charge

US $            TWELVE FS-MGRA NEO +                      $ 8,900  /   + $250 Flat Dropship Charge

US $            TWELVE SM Monitor Upcharge                $ 375  /    Finished Super Monitor Stands / pair 

                       

Coherent Audio The Twelve Loudspeaker

Shown above is the TWELVE

MGRA Super Monitor

Specification

Type                     

Rear ported, concentric single driver 
 

Cabinet                 

Canadian MDF construction

Spike / Cone - ready Threading
 

Finish                      

Stained, varnished wood veneer

  • Figured Mahogany or Walnut
     

Drivers                    

  • 12 " co-axial

    • Premium : Ferrite Magnetics

    • Signature : Ferrite Magnetics

    • NEO + : Neodymium Magentics

  • 1.75 " high frequency dome

    • with wave guide

    • Premium : Aluminum Diaphragm

    • Signature : Beryllium Diaphragm

    • NEO + : Aluminum Diaphragm

  • 150kHz Piezo Super Tweeter

    • All models​
       

Internal wiring      

All Models : Duelund / Jupiter Cu Cryo

Option : Less Loss CMARC 

Crossover Coil & Cap     

  • All : Solen Hepta Litz Coil

  • Premium : Mundorf Supreme Classic

  • Signature : Mundorf SGO Capacitor

  • NEO + : Mundorf SGO Capacitor

Performance & Dimensions


Frequency Response 

GRA Super Monitor

36 Hz - 20kHz + / - 3dB 

  • To 150kHz with Super Tweeter

MGRA Floorstander

28 Hz - 20kHz + / - 3dB 

  • To 150kHz with Super Tweeter

 

Sensitivity                

96dB / NEO+ 99dB
 

Nominal Impedance                      

8 ohms
 

Input Power                    

2 - 300 Watts RMS

Connectivity

5-way Binding Posts

                           

Dimensions      

Super Monitor : 16W x 14D x 26H

  • Super Monitor Stand : 10H

Floorstander : 16W x 14D x 36H

Weight

42 lbs each

"THE FIFTEEN"

Super Monitor & Floorstanding Loudspeaker

 

 

Modified  15” Radian Coaxial driver with crossover based on totally new design principles

 

As with all Coherent loudspeakers, the cabinet design follows the classical Golden Ratio proportions. This speaker series however offers a choice of two aesthetic designs - a standard Floorstander (FS-MGRA / Modified Golden Ratio), and an optional custom order GRA Super Monitor (SM-GRA / Golden Ratio).

This series includes 2 models, covering 2 Performance Levels :

  • FIFTEEN Signature - FS-MGRA Floorstander

  • FIFTEEN Reference - FS-MGRA Floorstander

All speakers in the FIFTEEN Series incorporate a custom co-axial Neodymium 15" driver from acclaimed Radian Audio, custom crossover and "Premium" components -- all carefully selected to deliver a very high level of exquisite musicality, and this regardless of music genre !

The cabinets have twin rear ports to deliver an open and transparent sound easily driven by low power tube amps, and include a unique internal baffle structure to minimize standing waves.

OPTIONS

Optional "Premium" Veneer Finishes available - CALL 

  • Premium Veneer up-charge per pair : $380

  • Subject to longer delivery lead time.

SUP

Custom Made in Canada

US $            FIFTEEN FS-MGRA SIGNATURE            $ 10,050  /   + $250 Flat Dropship Charge

 

US $            FIFTEEN FS-MGRA REFERENCE           $ 13,300  /   + $250 Flat Dropship Charge

US $            FIFTEEN SM Monitor Upcharge                $ 375      Finished Super Monitor Stands / pair 

Coherent Audio The Fifteen Loudspeaker

Shown above is the FIFTEEN

MGRA Super Monitor

Specification

Type                     

Rear ported, concentric single driver 
 

Cabinet                 

Canadian MDF construction

Spike / Cone - ready Threading
 

Finish                      

Stained, varnished wood veneer

  • Figured Mahogany or Tiger Maple
     

Drivers                    

  • 15 " co-axial                             

  • 3 " high frequency dome

    • With wave guide

  • Magnetics / Diaphragm :

    • SignatureNeodynum-Aluminum

    • Reference : Neodynum-Beryllium 

  • 150kHz Piezo Super Tweeter

    • All Models​
       

Internal wiring      

All Models : Duelund / Jupiter Cu Cryo

Option : Less Loss CMARC

Crossover Coil & Cap     

  • Signature : Solen Hepta-Litz Coil

  • Reference : Mundorf Feron Foil Coil

  • Signature : Mundorf SGO Capacitor

  • Reference : Mun, Jup, Duelund Tri-Cap

    • SGO / HT Wax / JDM Ag Foil

Performance & Dimensions


Frequency Response 

GRA Super Monitor

36 Hz - 20kHz + / - 3dB 

  • To 150kHz with Super Tweeter

MGRA Floorstander

26 Hz - 20kHz + / - 3dB 

  • To 150kHz with Super Tweeter

 

Sensitivity                

Signature & Reference : 99dB
 

Nominal Impedance                      

8 ohms
 

Input Power                    

2 - 400 Watts RMS

Connectivity

5-way Binding Posts

                           

Dimensions      

Super Monitor : 20W x 17.5D x 32.5H

  • Super Monitor Stand : 8.5H

Floorstander : 20W x 17.5D x 41H

Weight

60 lbs each

"THE EIGHTEEN"  -  NEW MODEL !

Floorstanding Loudspeaker

 

 

Modified  18” Radian Coaxial driver with crossover based on totally new design principles

 

As with all Coherent loudspeakers, the cabinet design follows the classical Golden Ratio proportions. This speaker series is offered as a standard Floorstander.

This series includes 2 models, covering 2 Performance Levels :

  • EIGHTEEN Signature - FS-MGRA Floorstander

  • EIGHTEEN Reference - FS-MGRA Floorstander

The all new EIGHTEEN Series incorporate a custom co-axial Neodymium 18" driver from acclaimed Radian Audio.

 

This is a very exciting development as it probably is a "first" in the world of Concentric High Efficiency / Sensitivity Loudspeakers :

  • 102dB sensitivity +  "18 inch Bass" down to a comfortable 25Hz and 22Hz at -3dB ! 

 

As with all other Coherent loudspeakers, you get a custom crossover and "Premium" components -- all carefully selected to deliver a very high level of exquisite musicality, and this regardless of music genre !

The cabinets have twin rear ports to deliver an open and transparent sound easily driven by low power tube amps, and include a unique internal baffle structure to minimize standing waves.

OPTIONS

Optional "Premium" Veneer Finishes available - CALL 

  • Premium Veneer up-charge per pair : $400

  • Subject to longer delivery lead time.

Custom Made in Canada

US $            EIGHTEEN FS-MGRA SIGNATURE            $ 14,950  /   + $300 Flat Dropship Charge

 

US $            EIGHTEEN FS-MGRA REFERENCE           $ 17,800  /   + $300 Flat Dropship Charge

Coherent 18  THREE.jpg

Photo coming soon

 

 

 

 

 

 

 

 

 

 

 

 

 

THE EIGHTEEN was introduced in August 2021

Specification

Type                     

Rear ported, concentric single driver 
 

Cabinet                 

Canadian MDF construction

Spike / Cone - ready Threading
 

Finish                      

Stained, varnished wood veneer

  • Figured Mahogany or Tiger Maple
     

Drivers                    

  • 18 " co-axial                             

  • 3 " high frequency dome

    • With wave guide

  • Magnetics / Diaphragm :

    • SignatureNeodynum-Aluminum

    • Reference : Neodynum-Beryllium 

  • 150kHz Piezo Super Tweeter

    • All Models​
       

Internal wiring      

All Models : Duelund / Jupiter Cu Cryo

Option : Less Loss CMARC

Crossover Coil & Cap     

  • Signature : Solen Hepta-Litz Coil

  • Reference : Mundorf Feron Foil Coil

  • Signature : Mundorf SGO Capacitor

  • Reference : Mun, Jup, Duelund Tri-Cap

    • SGO / HT Wax / JDM Ag Foil

Performance & Dimensions


Frequency Response 

MGRA Floorstander

22 Hz - 20kHz + / - 3dB 

  • To 150kHz with Super Tweeter

 

Sensitivity                

Signature & Reference : 102dB
 

Nominal Impedance                      

8 ohms
 

Input Power                    

2 - 600 Watts RMS

Connectivity

5-way Binding Posts

                           

Dimensions      

Floorstander : 20W x 18D x 44H

Weight

70 lbs each

The focus of Frank's research is to : 

Design and build an accessibly priced speaker that would most realistically deliver the micro-dynamics, vividness, dimensionality and excitement of live music

After numerous prototypes, extensive listening tests  and continuous design refinements, Frank determined  that the best way to achieve the  desired objectives would be through a high sensitivity and high quality full range co-axial driver.

 

The basic requirements were ultimately fulfilled by the American-made Radian coaxial drivers

However, this was only the the starting point :

  • The Radian driver undergoes extensive modifications by Coherent Audio

  • The modified driver and is then matched to a special crossover designed and built by Coherent

  • This crossover is based on totally new design principles and incorporates special coils which are built by Coherent Audio

  • Finally, and very importantly, each model of coaxial driver is matched to a Coherent designed and hand built cabinet that incorporates unique design features to allow the modified coaxial units to perform at their maximum capability

 

The end result is an outstanding and very exciting new range of high efficiency speakers offering :

​​

Extremely accessible pricing for the performance

and hand-built quality being offered

allnic-coherent-1_auto_x2.jpg

COMPONENT

DESCRIPTION

VENEER

FINISHES

ABOUT THE

DESIGN

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