ACS PRO Custom earplugs are praised for maintaining sound clarity while reducing volume, though some DJs find them less comfortable for mixing compared to IEMs.

Custom earplugs by Starkey, made through an audiologist, offer superior sound isolation compared to off-the-shelf options.

Some users experience a sensation of pressure in the ears and altered sound when moving the jaw, suggesting a potential fit issue with ACS Pro 17 earplugs.

For individuals with significant jaw movements, such as vigorous dancing, the seal of custom earplugs may break, affecting sound protection and experience.

Some users highlight the mental and physical relief from fatigue when using ACS earplugs during long exposure to loud music.

It's recommended to insert ACS earplugs before entering loud environments to achieve a more natural sound experience.

ACS's solid silicone sleep earplugs are highly rated for urban living or travel, providing significant noise reduction for better sleep.

Users recommend higher attenuation levels, like 25dB, for environments with extended exposure to high decibels, such as Berghain, to prevent hearing damage.

ACS PRO 17 earplugs are praised for their clarity and comfort, making them ideal for prolonged use in noisy environments like concerts and clubs.

ACS PRO 15 earplugs provide slightly lower protection but allow for clearer conversations without needing to remove them, even in loud environments.

Shure SE215s are suggested as an affordable IEM option for DJs seeking better sound isolation than closed-back headphones.

Users note that the 26dB filter can overly focus on low-mid frequencies, losing high-end nuances, making it less suitable for environments like Berghain.

Custom earplugs like ACS are noted for superior comfort and sound quality when compared to standard earplugs, with specific praise for sealing the ear canal effectively.

The ACS Pro 17 case may be inconvenient; users report difficulty retrieving earplugs from it, leading to their storage in pockets instead.

The filters in ACS PRO earplugs are easily interchangeable, but it's advised to change them at home to avoid loss.

Some users report needing multiple fittings to achieve a proper seal, indicating that individual ear canal variations can affect the effectiveness of custom earplugs.