September 2026

Open-back headphones with perforated grilles beside closed-back headphones with solid ear cups

Closed vs Open Back Headphones: What Changes and Which Fits Your Room

A practical, measurement-aware comparison of open- and closed-back headphones, including isolation, leakage, bass, soundstage, studio use, and a fair test method.

Unbranded phone, headphones, and compact speaker connected by a conceptual wireless data stream

Sound Technology Wireless Audio

Bluetooth Audio Codecs Explained: What Actually Changes the Sound

A practical guide to Bluetooth audio codecs, from SBC and AAC to aptX, LDAC and LC3, with compatibility checks and a controlled listening test.

Passive bookshelf speaker and integrated amplifier connected on a clean audio test bench

Home Audio

Speaker Impedance Explained: What Ohms Mean and How to Match an Amplifier

A measurement-led guide to speaker impedance, nominal and minimum ohm ratings, reactive loads, and safer amplifier compatibility checks.

A neutral listening room with broadband wall panels, corner treatment, two speakers, and a measurement microphone at the main seat

Audio Guides

Acoustic Treatment Panels: What They Do, Where to Place Them, and How to Verify Results

A measurement-led guide to diagnosing room reflections, choosing suitable acoustic treatment panels, placing them purposefully, and verifying the result.

Black subwoofer positioned beside the front-wall speakers in a home listening room

Audio Guides Home Audio Room Acoustics

Subwoofer Placement: How to Find the Best Position for Better Bass

A measurement-first guide to subwoofer placement, including room modes, the subwoofer crawl, crossover integration, and multi-seat bass consistency.