Are they really 52 pieces? I see on coments that comes one package of 24 and most of them are good the rest are half of them are flat on one side.

It actually 2 packs in the box, it is also best that once you open the packs to keep them out for 24 hours before installing that way they can expand. I have had them on the wall since I bought them and also bought 52 more and they also have been up since purchased.

How much does this product dampen the sound in a room? And does it help eliminate reverb?

If you're trying to control a broad frequency range including lower frequencies, or trying to soundproof a space, these aren't what's you're looking for. However, if you are trying to take some high frequency out of the room, great for making a more neutral recording or getting rid of that small room/boxy sound, these work. It's a low density open cell foam of good quality. If you are trying to neutralize the reverb from a room, find your flat, hard surfaces (especially if there are parallel to another flat, hard surface like a wall) and hang a few of these. With enough coverage, the difference should be quite noticeable.

How well does this do for 15-16khz blocking?

They cut the echo in a room, they don't make a room completely soundproof they make it less noisy; it takes thicker panels to absorb the more sound.

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audiosoul 52 Pack Acoustic Panels 1 X 12 X 12 Inches - Acoustic Foam - High Density- Soundproof Studio Wedges - Charcoal

Product ID: 396154993

Details

Brand
audiosoul
Item thickness
1 Inches
Material
Foam
Product dimensions
30.5L x 2.5W
Recommended uses for product
Soundproofing

⚡Professional-grade sound absorption

📏52 panels covering 52 sq ft

🧱1-inch thick high-density foam

¥25382

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Silence the noise, amplify your focus.

ECHO ERASER - Transforms noisy rooms into crystal-clear soundscapes
PRO LEVEL DENSITY - Consistent firmness for reliable acoustic performance
STRESS FREE INSTALL - Lightweight panels, no special tools needed
FOMO WORTHY ACOUSTICS - Join thousands upgrading their sound environment
VERSATILE SOUND CONTROL - Perfect for studios, offices, and creative spaces

The audiosoul 52 Pack Acoustic Panels deliver professional-grade sound absorption with 52 high-density foam wedges, each 1 inch thick, covering 52 sq ft. Designed to reduce echoes and reverberations in studios, offices, and creative spaces, these lightweight panels are easy to install and enhance sound clarity without full soundproofing.

Specifications

ASIN	B08QQRWDWS
Best Sellers Rank	19,968 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 382 in Acoustic Room Treatment
Brand	audiosoul
Country of Origin	China
Coverage	52 sq ft (Soundproofing)
Customer Reviews	4.0 4.0 out of 5 stars (4,467)
Included Components	Tape,Acoustic Foam
Item Dimensions L x W	30.5L x 2.5W centimetres
Item Thickness	1 Inches
Manufacturer	audiosoul
Material	Foam
Model Number	UNIQUE-52PAP
Number of Items	52
Part Number	1
Recommended Uses For Product	Soundproofing, Acoustic Treatment
UPC	753068062649

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥25382

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Received my product in pristine condition. Great service overall.

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