Picture of an Echo Dot 4th Gen clock speaker in front of a Sony SRS XB33 light show and Bluetooth speaker.

Sony SRS XB33 Specs Watts

The SRS XB33 Sony Bluetooth speaker is a small to medium power, desktop wedge shaped unit with plenty of output watts in its specs to fill a typical room with tunes.

But what do the watts a Bluetooth speaker has tell you about it?  Firstly, the watt is a measure of how much power the speaker consumes or outputs.  Plus, this metric is a handy comparison measure. E.g. Generally speaking, speakers with more watts output tend to play louder than those with less.  They cost more, have bigger batteries and chargers, along with larger drivers.  They offer greater dynamic range, have a deeper bass response, and stereo versions and offer typically a bigger soundstage to listeners.

Picture of the Sony SRS XB33 speaker, connected to charger and charging.
The Sony SRS XB33 speaker, connected to charger and charging.

Thus in general, the more powerful the speaker, the better it sounds, even at lower volume. You get better clarity due to higher accuracy reproduction of the bass, midrange, and treble content of the music. More available power could mean less clipping distortion too. So, the speaker’s watts output is a primary indicator of speaker quality and performance, and as such, is of great interest to audiophiles and novice listeners alike.

In this case, the Sony XB33, as a portable BT speaker, is a decently hefty model for its size.  Its tens of watts can fill a small to medium size room with music. See below for details on its power output.





Sony SRS XB33 Specs Watts Details

    1. Battery Capacity: 19.24 watt-hours (7.4 volts, 2.6 amp-hours).
    2. USB-C Charger Power: 15 Watts (5 volts at 3 amps).
    3. Light Power: Less than 2 watts.
    4. Bluetooth Standby Mode Power: 0.2 watts.
    5. Power Bank Output Power: 5 Watts (5 volts at 1 amp max).
    6. Total Audio Output Power on AC (RMS): 16 watts.
    7. Total Peak Audio Power (both channels): 22.6 watts.
    8. Audio Output Power on Battery: Decreases as battery discharges.
    9. Output Power per Channel: 8 watts RMS.

Notes on Sony SRS XB33 Specs Watts

    1. The system tries to conserve battery power as the battery get close to total depletion.  The XB 33 does this by reducing the audio output power somewhat.
    2. The SRS XB33 speaker may not input enough enough power from a USB-C power adapter to keep the battery from discharging when playing at full volume, depending on what you’re playing on it.  So it’s possible that even with the unit plugged in, you could still see it shut down.  Thus on the (rare) occasions that this occurs, just stop playing the 33 for an hour or two, to let it build up some reserve power while charging. Then, fire it up again for continued party enjoyment.

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Other Posts About the Sony SRS XB33 Bluetooth Speaker

    1. Sony SRS XB33 Specs, Specifications
    2. Sony SRS XB33 Blinking Orange Light Problem
    3. Orange Light Stays On Problem on the Sony SRS XB33 BT Speaker
    4. Sony SRS XB33 Software Update Directions
    5. How to Turn Off Lights on Sony SRS XB33 Party Speaker

References

Revision Log

    • 2023-01-22: First published.
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