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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
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Description
PRIMA 4" COAX SPEAKERS PAIRAdditional Details APX 4 features a concentric coaxial tweeter: with one single point of sound emission it is possible to obtain a consistent in phase response, with consequent reconstruction of the acoustic scene comparable to a system of separate woofer + tweeter. The 4 cones surround features the exclusive shallow Triple Wave profile, for maximum excursion linearity. Features Concentric Coaxial Tweeter: tweeter is mounted within the woofer with one
Additional Details
APX 4 features a concentric coaxial tweeter: with one single point of sound emission it is possible to obtain a consistent in-phase response, with consequent reconstruction of the acoustic scene comparable to a system of separate woofer + tweeter.The 4³ cones surround features the exclusive shallow Triple Wave profile, for maximum excursion linearity.
Features
- Concentric Coaxial Tweeter: tweeter is mounted within the
woofer with one single point of emission providing consistent
phase response, with an accurate recreation of the sound stage
comparable to that of a component system. - Tweeter features an acoustic lens specifically designed to
ensure an extremely linear frequency response, even in off-axis
placement, typical of in-door installations. - 32 mm pure copper voice coil, for high power handling and
outstanding low frequency control. - Overall mounting depth optimized for OEM Integration thanks
to the concentric tweeter and the low profile basket. - Water-repellent treated paper cone, featuring a profile developed
with FEM (Finite Element Method) simulation technology and
optimized with the Klippel Scan Vibrometer. - TPU (thermoplastic polyurethane) suspension with unique “triple wave” profile for maximum linearity of excursion.
- Compact basket, protected by abrasion-resistant and scratchproof coating, the motor affixed with damping epoxy adhesive.
- High current fast-on terminal with double contact on positive
and negative poles for high flexibility and quick connection. The
terminal features a temperature resistant plastic cover,
protecting it against accidental short circuits. - Developed with the KLIPPEL suite. –
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Just perfect. Well made, No Issues Just one perfect sleep zzzzzzzzzzz😴
Color: White, Size: Queen (Pack of 2)
I had down pillows, and foam pillows, and other synthetic pillows etc and some were ok and others were not. I cannot get a great nights sleep if I am constantly having to adjust my pillow during the night. I ordered these pillows as I sleep on my side mostly but sometimes on my back. When they arrived I followed the directions (as they are in a vacuum pack) and only takes a few minutes for them to acclimate. Then put pillow cases on them and off to bed. I had the BEST sleep I have had in YEARS !!!!! The pillows are great. They keep your head comfortable and cool (No Sweating) and super comfortable. The only issue is after a perfect nights sleep, I find I really do not want to get out of bed in the morning..One great thing, is I am retired so I really do not have to get up out of bed until I want to 😴😳. The pillows are well made and feel like expensive down filled pillows but softer. I am VERY satisfied with the pillows. I just wish I would have found these pillows years ago. But now I have them and the perfect sleep that they provide. Dr Dave
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 5
Great sleep
Color: White, Size: Queen (Pack of 2), Color: White, Size: Queen (Pack of 2)
Finally found a pillow that is comfortable. Tested about 5 until I found the right one. This is perfect for back and side sleepers. Firm, but soft. Just enough filling and great quality. Will hold up for many years.
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Good overall
Color: White, Size: Standard (Pack of 2)
Bought these for our guest bedroom. They are quite overstuffed, so if you like full pillows this will be your thing. As such they are dense and firm. The height is a bit much if you are small framed, but are comfortable overall and stay cool enough to be nice in the summer.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Finally Found Pillows Everyone Loves
Color: White, Size: King (Pack of 4)
I LOVE these pillows. I bought the king-size set and ended up liking them so much that I want them on every bed in the house.
They’re soft but still supportive, and they actually work for different sleeping positions, back, side, and stomach sleepers. They don’t go flat, but they’re also not overly stiff, which is such a hard balance to find. I throw them in the washing machine which makes them super easy to wash! The size is true to King!
They feel cool and hotel-quality, and the down-alternative fill is great if you don’t want real feathers. I wake up without neck pain, and they keep their shape night after night.
If you’re picky about pillows (like I am), these are absolutely worth it. Comfortable, affordable, and a great value for a set of four.
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Reviewed in the United States on February 4, 2026
★★★★★ 5
Feel perfect, not too soft and not too hard.
Color: White, Size: Queen (Pack of 4)
Incredibly perfect pillows. They feel not firm nor too soft but just right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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