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Description
PRIMA 6X9" COAX SPEAKERS PAIRAdditional Details The APX 690 features an exclusive 40 mm horn loading dome tweeter that contributes to maximize efficiency up to 96dB SPL and an acoustics lens specifically designed and applied to the tweeter to increase dispersion in the high frequency range. To strengthen the emission of very high frequency ranges otherwise affected by off axis positioning compared to the listening point, the APX 690 featuring a supertweeter. Features Horn Loaded
Additional Details
The APX 690 features an exclusive 40 mm horn loading dome tweeter that contributes to maximize efficiency up to 96dB SPL and an acoustics lens specifically designed and applied to the tweeter to increase dispersion in the high frequency range.To strengthen the emission of very high frequency ranges otherwise affected by off-axis positioning compared to the listening point, the APX 690 featuring a supertweeter.
Features
- Horn Loaded Tweeter: 40 mm horn loaded dome tweeter
contributing to its incredible efficiency of up to 96 dB SPL. - Acoustics lens applied to the tweeter, specifically designed to
increase dispersion in the high frequency range. - PEI (Polyethylene injected) super tweeter employed to strengthen
emission of very high frequency ranges otherwise affected by
off-axis positioning common to rear deck installations. - Water-repellent treated paper cone, featuring a profile developed
with FEM (Finite Element Method) simulation technology and
optimized with the Klippel Scan Vibrometer. - Pure copper mobile voice coil, wound on Kapton former, for
better thermal and mechanical capacity. - TPU (thermoplastic polyurethane) sphere with unique “triple wave” profile for maximum linearity of excursion.
- Polycotton spider material ensuring reliable performance and
linear response to musical transients. - Large motor assembly, optimised with FEM (Finite Element Method)
technology, for stable control and linear excursion. - Low carbon content plates for maximum magnetic permeability
and high heat dissipation. - Compact basket, protected by abrasion-resistant and scratch-proof
coating, the motor affixed with damping epoxy adhesive. - High current fast-on terminal with temperature resistant plastic
cover, protecting it against accidental short circuits. - Developed with the KLIPPEL suite.
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4.4 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Great Read
Format: Paperback
The details the author provides in the introduction are invaluable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2022
★★★★★ 5
Plato at his best
Format: Kindle
Very clear and good translation of a difficult text
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Reviewed in the United States on August 18, 2017
★★★★★ 1
Great translation BUT printed backwards
Format: Paperback
The book is actually printed backwards, with Contents and Introduction at the back of the book. Never seen this before.
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Reviewed in the United States on July 25, 2025
★★★★★ 5
Read it again.
Format: Audiobook
And certainly if you've never read it read it for the first time. I have been feeling like I wanted to reread this book. And then heard that they were going to release. John has written so many books that have impacted people over the years. It's crazy that the book that he wrote first with his best friend may be the best. I would also recommend getting the workbook.
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Reviewed in the United States on March 16, 2025
★★★★★ 5
His Great Heart
Format: Kindle
This book is a journey of love, His love for us. Priceless reminder of the past and guide to the future.
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Reviewed in the United States on January 15, 2025