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Yes they are sealed. More specs here: https://aretai.com/aretai-contra-100s

The Aretai Contra 100S is a 2.5-way bookshelf design featuring a 1.75" ring radiator tweeter housed in a custom-built waveguide horn that sits on top of the speaker. Each speaker also includes a pair of 6" forward and rear facing drivers to give them more punch than their diminutive size...

Make sure you have the impedance switch set to the high (8 ohm) setting. Turn off all room correction and make sure your tone controls are bypassed or flat. My bench tests show this to be a class leading AVR and one of my reviewers is currently reviewing it and not complaining about bad sound...

If you want the best performance no matter what level of quality or price you have invested on your beloved turntable, selecting the right materials for isolation feet and platforms is essential for maximizing your turntable's performance. We'll help you find the BEST ways of isolating your...

I added my listening impressions of the M23 to the test report and turned it into a review and republished: https://www.audioholics.com/amplifier-reviews/nad-m23-amplifier

DTS has developed an AI-based audio processing feature called Clear Dialogue. An on-device solution for TV OEMs, DTS Clear Dialogue identifies, separates, and enhances spoken dialogue for TV audio. Users can customize their experience to accommodate environmental issues and differences in...

38mm

Definitely fully active crossovers with BW limiting for each driver which is directly coupled to its respective amplifier.

Heat likely won't be much issue depending on the biasing scheme of the amps and how much heatsink area they have.

Focal has introduced its first active streaming wireless speaker, and it’s a doozy. While there are plenty of affordable and mid-priced options in this increasingly popular category, the new DIVA UTOPIA ($39,999/pair) is aimed squarely at the well-heeled audiophile who values simplicity and...

After months of dropping hints and sneak peaks, Arendal Sound has introduced its new 1528 Series loudspeakers. These high-end speakers are big, beefy, and very technologically advanced. The lineup includes the 1528 Tower 8 ($9,500/pair), the 1528 Monitor 8 ($5,900/pair), the 1528 Bookshelf 8...

Anders Storm, a software, engineering, and semiconductor industry veteran, brings deep technical knowledge to Dirac as its new CEO. Meanwhile, Dirac co-founder Mathias Johansson is leaving the company after 23 years to join Harman. As fans of both Dirac and Harman, we’re glad to see that...

Perlisten and Trinnov teamed up with other elite AV brands to build a groundbreaking immersive home theater experience at CEDIA 2024. The demo system included a massive 13.14.6-channel Perlisten speaker system. The system used 14 subwoofers and feature Trinnov’s WaveForming technology for...

The Marantz in this case is not a value product. It's a finely crafted product with build quality, looks and SOTA performance no Crown amp can touch. It's like comparing a Bentley to a Hyundai Sonata.

I've seen the Xcore measurements at ASR. Not an amp I would consider for serious fidelity. https://www.audiosciencereview.com/forum/index.php?threads/crown-xti4002-pro-stereo-amplifier-review.46545/ Maybe their higher-end stuff is better but whatever modules JBL was using in Synthesis, I was...

I heard the fan noise with them just sitting idle. I would not use crown amps for serious audio applications.

Those Crown amps are noisy and don't even come close to the low distortion of a Purifi design. I heard the Crown amps JBL uses in Synthesis and the fan noise was unbearable IF you have the equipment in an acoustically controlled room. I could hear the fans from 10ft away during quiet passages.

Marantz is NOT using this off the shelf module from PuriFi. Their design is based on it, but its entirely built by them from the ground up including their own SMPS power supplies.