High Efficiency Coherent Audio GR12 Speaker with Tune-able Ports.
Now at True Audiophile
We have long looked for high efficiency speakers that don't sound like a box. As in the box completely disappears. With their patented Sonic Blades and unique and beautiful finishes, you'll readily agree - True Audiophile Mini Review
Unlike all other speakers, the Coherent Line sounds great off-axis as well as traditional sweet spot listening. Great for all of us that actually have a life and not perfect listening rooms.
GRA 12 "La Sylphyde" Loudspeaker
Modified 12” Radian Coaxial driver with crossover based on totally new design princiiples
Golden Ratio (GR) design follows the classical proportion for aesthetics and includes internal baffles to minimize standing waves.
Speakers incorporate a custom co-axial driver from acclaimed Radian Audio, custom crossover and components selected for optimal performance.
The cabinets have twin rear ports to deliver an open and transparent sound easily driven by low power tube amps
OPTIONS
The standard Aluminum diaphragm and Mundorf capacitor can be upgraded to an exotic Beryllium diaphragm and ultra high end Mundorf EVO Silver-Gold-Oil capacitor. Matching stands are also available.
Premium
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Tweeter diaphragm - Aluminum
Crossover Capacitor - Mundorf MCAP Supreme
Internal cabling - Nordost 4-Flat FEP/OFC
Signature
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Tweeter diaphragm - Beryllium
Crossover Capacitor - Mundorf SUP=EVO / SGO
NEO+
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Crossover Capacitor - ACS Cera / JUP-BW / MU-SGO
Internal cabling - AC Switzerland Silver/Cryo/Cotton
Initial pricing is for standard model
Custom Made in Canada - Multiple Veneer Finishes available - Partial examples in Specs/Features
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Type
Rear ported, concentric single driver
Cabinet
Canadian
Canadian Particle Board Construction (Not MDF which is dead and lifeless in a cabinet)
Spike / Cone - ready Threading
Finish
Stained, varnished wood veneer
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Figured Mahogany or Tiger Maple
Drivers
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12 " co-axial - Ferrite Magnetics
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1.75 " high frequency dome w/ wave guide
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Prime : Aluminum Diaphragm
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Premium : Aluminum Diaphragm
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Signature : Beryllium Diaphragm
-
-
150kHz Piezo Super Tweeter
Internal wiring
Prime : Duelund 16GA / Jupiter Cu Cryo
Premium : LessLoss CMARC-S
Signature : LessLoss CMARC-S
Crossover Coil & Cap
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All : Coherent Custom-wound Coil
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Prime : Mundorf Supreme Classic
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Premium : Mundorf Supreme SGO
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Signature : Mundorf Supreme SGO
Performance & Dimensions
Frequency Response
GRA Super Monitor
36 Hz - 20kHz + / - 3dB
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To 150kHz with Super Tweeter
MGRA Floorstander
28 Hz - 20kHz + / - 3dB
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To 150kHz with Super Tweeter
Sensitivity
96dB
Nominal Impedance
8 ohms
Input Power
2 - 300 Watts RMS
Connectivity
5-way Binding Posts
Dimensions
Super Monitor : 16W x 14D x 26H
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Super Monitor Stand : 10H
Floorstander : 16W x 14D x 36H
Weight
42 lbs each
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