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Yamaha WS-B1A
WS-B1A Portable Bluetooth Speaker Discontinued
Durability and portability in an upscale design and small package. This Bluetooth speaker lets you take True Sound with you anywhere you go.
- Bluetooth connectivity for on-the-go sound
- IP67 waterproof- and dust-resistant rating
- 2 1/8" speaker driver and two passive radiators for powerful sound
- USB Type-C charging
- Up to 12 hours of playback on a full charge. Fully charge in 3 hours or less
- Handheld size for portability: 3 1/2" x 4 1/8" x 3 1/2" (WxHxD)
- Wall mountable via 1/4"-20 threaded mounting socket
HANDHELD POWERHOUSE
Truly remarkable sound, right beside you – anywhere. Using our extensive experience in Hi-Fi, we've weaved our sonic expertise into this 4-inch package, allowing your music to fully fit your life.
PERFECT TEAMWORK
ADVANCED ENGINEERING
The size of the WS-B1A is small, but its expressive range is huge. To bring this compact and stylish speaker to life, we’ve completely shifted our design paradigm and loaded the high-quality sound of a full-sized speaker into a sleek, compact package.
STYLISH DESIGN
The aesthetically pleasing design enhances the look of any space - inside or outside - and the special fabric was created for the sole purpose of letting the sound through.
CHARGED UP
Easily charge using the included USB Type-C cable. Fully charge in 3 hours or less for up to 12 hours of play time.
RUGGED YET STYLISH
The WS-B1A is built to tough IP67 grade waterproof performance, allowing you to play your music clearly anywhere, anytime – even where it’s wet.
SUBSCRIBE TO CLEAR SOUND
Hit the Clear Voice button to make your podcasts sound clearer than ever.
Dealers selling Yamaha near you
The Yamaha WS-B1A delivers surprisingly punchy bass and focused vocal clarity from its tiny full‑range driver and dual passive radiators, making it a standout compact portable. With surprising bass, IP67 waterproofing and a 12‑hour battery in a USB‑C chassis, it balances rugged build and sonic poise — noted by Marc Rushton.
Pros
- Punchy, controlled low end for the size thanks to the full‑range driver plus dual passive radiators.
- Clear, forward mids that keep vocals intelligible and focused at typical listening levels.
- Rugged, well‑built design with IP67 waterproofing, USB‑C charging and up to 12 hours of playback.
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Cons
- Limited maximum output and headroom (10 W), so it compresses and lacks slam at high SPL.
- Constrained stereo width and treble extension compared with larger bookshelf or multi‑driver designs.
Sound Quality
82/100
Bass
84/100
Tiny 2-1/8" full-range driver with two passive radiators yields bass performance strong for the speaker's size. Passive radiators and repeated marketing/spec emphasis on PR design suggest better low-end extension than typical tiny sealed units (+PR modifier). Expect good control and surprising extension 'for its size', but limited compared with larger bookshelf drivers and limited output/headroom (10 W).
Mid
86/100
Small full-range driver typically produces focused, forward mids with clear vocal presence; the WS-B1A's compact sealed chassis and Yamaha voicing likely favor clarity and presence over lush body. Given the single small driver design, mid timbre should be natural and intelligible at typical listening levels, though extremes of texture won't match larger bookshelf designs.
Treble
82/100
A small full-range driver tends to deliver respectable upper-frequency detail without excessive air; the instrument should be clean and non-harsh. Extension and 'air' are inherently limited by driver size, so the treble is competent and refined for a tiny portable speaker rather than highly resolving.
Soundstage Imaging
78/100
Very compact single-driver enclosure constrains stereo width and depth; imaging will be more centered and less layered than bookshelf pairs. For nearfield listening the speaker should present coherent focus and decent localization, but wide soundstage and deep layering are not expected from this form factor.
Dynamics
78/100
10 W maximum output and small driver size limit macro headroom and slam, but passive radiators and efficient design provide punchy delivery at normal listening levels. Dynamics are good for personal/nearfield use but will compress under high SPL and complex bass-heavy material.
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Build Quality
88/100
IP67 rating, compact robust enclosure, USB-C charging and solid-feeling chassis indicate high build and ingress protection. Yamaha's engineering and the inclusion of waterproofing and long battery life (up to 12 hrs) point to above-average craftsmanship for a portable speaker.
Features Connectivity
80/100
Passive baseline applied. Spec'd with Bluetooth 5.0 (A2DP/AVRCP), USB-C charging and IP67 waterproofing; lacks Wi‑Fi/AirPlay/MusicCast and Ethernet. As a compact active speaker this is a straightforward connectivity set — no DSP/app streaming features present.
Value for Money
88/100
At the listed price range ($49.95–$99.95) the WS-B1A offers strong value: waterproofing, 12-hour battery, USB‑C, passive radiators and Yamaha brand reliability. For buyers seeking a rugged, compact speaker with surprisingly strong bass for size, this is a competitive offering vs. peers in the sub-$100 portable segment.
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