Speaker specifications are useful only when you know what they change in actual listening. These guides explain the audio terms used throughout our rankings, show which numbers can be compared fairly, and flag the marketing claims that cannot.
Sound Quality and Performance
- Frequency response: what 20Hz-20kHz means
- Bass extension: -3dB vs -10dB
- Spinorama preference scores: standalone vs with a subwoofer
- Speaker EQ: how many bands you need
- DSP on powered speakers
- Maximum SPL and speaker loudness
Speaker Design and Amplifier Matching
- Speaker drivers: woofers, tweeters and passive radiators
- Speaker crossovers and subwoofer crossover controls
- Sealed, ported and passive-radiator woofer cabinets
- Speaker impedance: 4 vs 6 vs 8 ohms
- Speaker sensitivity: loudness per watt
- Speaker power handling and amplifier matching
- Speaker watts: why wattage alone is misleading
Bluetooth and Portable Speaker Features
- Bluetooth codecs: SBC, AAC, aptX, LDAC and LC3
- Bluetooth versions: does a newer version sound better?
- Bluetooth latency and audio delay
- Aux latency on a wired connection
- TWS: pairing two speakers for stereo
- Multi-speaker pairing: Auracast, PartyBoost and PartyCast
- Stereo sound from a single Bluetooth speaker
- Omnidirectional and 360-degree speakers
- Speaker IP ratings: IPX4 vs IPX7 vs IP67
- Bluetooth speaker battery life
- Power bank mode
- Companion apps
- Built-in microphones
- FM tuners
- MicroSD card playback
- USB flash-drive playback
Inputs, PA Speakers and Subwoofers
- Powered speaker inputs: XLR, RCA, TRS and optical
- Party speaker inputs: aux, microphone, guitar and XLR
- PA speaker coverage and dispersion angles
- Speaker rigging: fly points, brackets and pole mounts
- CEA-2010-A subwoofer measurements
- Subwoofer enclosure types: sealed, ported and horn-loaded
How To Use These Guides
Start with the term attached to the specification you are comparing, then follow the related guides at the end of that article. For buying advice and ranked products, go to the portable, powered, passive, PA, or subwoofer rankings.
Frequently Asked Questions
Which speaker specifications matter most for sound quality? Frequency response, bass extension, directivity, distortion and clean output are the most useful performance indicators. The importance of each depends on the room, listening distance and how loudly you listen.
Does higher speaker wattage mean better sound? No. Wattage describes electrical power, not sound quality or loudness by itself. Speaker sensitivity, amplifier limits, distortion and maximum SPL provide the missing context.
Which Bluetooth speaker features are worth comparing? Battery life, water resistance, latency, inputs, multi-speaker compatibility and app support often matter more than the Bluetooth version or codec printed on the box.
Where can I find speakers that match a specific feature? Each guide links to relevant rankings and product categories where that specification is used, so you can move from the definition to speakers that actually meet the requirement.