PSB Synchrony B600 2-Way Passive Desktop Bookshelf Speakers - Satin Walnut

The Crossover

Like other PSB speakers, the B600 features an amplitude-perfect Linkwitz-Riley 4th-order acoustic crossover. Employing high-voltage low-dissipation film capacitors, high-current inductors with high saturation threshold, and oxygen-free internal wiring, the Synchrony Series’ new crossovers are PSB’s most optimized Linkwitz-Riley 4th-order crossovers to date.

Among other benefits, the optimized crossover contributes to the Synchrony B600’s remarkably smooth response. On-axis response deviates a mere ±1.5db from 55-20,000Hz, and ±3db from 50-33,000Hz.

Combined with the placement of the tweeter below the woofer, the Linkwitz-Riley crossover also provides greater flexibility in listener position. Tonal balance remains consistent whether the listener is seated or standing. 

The Enclosure

The B600’s rigid MDF enclosure has extensive internal bracing to minimize resonances that can cause uneven response and blur transients. The front baffle is clad in a 5mm-thick solid aluminum plate, which suppresses “baffle talk” that can obscure fine detail. The aluminum plate on the baffle has threaded pins on the rear that grab six small isolation cups, three on each side, which suspend the aluminum plate between the two sidewalls of the enclosure. The aluminum plate has contact with the cabinet only around its perimeter. The isolation cups decouple the aluminum plate from the enclosure, another measure that helps preserve fine detail.

On the bottom of the enclosure are four isolation feet, custom designed for PSB by IsoAcoustics. Based on IsoAcoustics’ award-winning Gaia II isolators, the B600’s isolation feet adhere to the supporting surface. The isolators prevent energy from the drivers and cabinet from being reflected back into the enclosure, and also prevent structure-borne vibrations from reaching the listener. Benefits include improved micro-detail, clearer transients, a wider soundstage, and more precise imaging.

The flange of the rear-firing port is constructed from CNC-turned aluminum, providing fit and finish that matches the rest of the speaker.

Finishes and Options

The Synchrony B600 is available in two gorgeous furniture-grade finishes: Satin Walnut Veneer and High Gloss Black. Other design touches enhance the B600’s visual appeal, including a tasteful Synchrony logo on the top edge of the front baffle, where it meets the top surface of the enclosure.

Two pairs of five-way insulated binding posts allow for bi-wiring or bi-amping. Jumpers are supplied to allow conventional wiring to a single amplifier. Included with the B600s are two narrow-profile
black grilles that complement the enclosures.

Thanks to their super-slim cross-sections, the grilles have minimal effect on the B600’s sound. Magnets embedded in both the grille and enclosure assure a quick, secure fit. Custom 24"-high speaker stands are available for the B600s. Finished in black, the B600 stands have adjustable spike feet, and a top plate that provides a stable, non-resonant connection with the speakers’ pre-installed IsoAcoustics isolation feet.

Natural Harmony

Considered individually, each of these advances offer meaningful benefits. Considered holistically, they’re transformative. With its new driver platform, enclosure design, and amplitudeperfect crossover, the B600 will deliver revelatory, immersive listening experiences with both movies and music. Quite simply, the new Synchrony B600 is the finest bookshelf loudspeaker PSB has ever offered. 

Advanced Driver Designs

The B600’s 6½″ (165mm) woofer features a woven carbon fibre cone that combines low mass and high rigidity, a mass-loaded rubber surround that suppresses unwanted reflections, and an advanced motor structure assures that maintains constant magnetic force throughout the voice coil gap. The 1″ (25mm) titanium dome tweeter features Ferrofluid cooling and a neodymium magnet.

Together, these refinements result in wider bandwidth, higher efficiency, better power handling, and reduced harmonic and intermodulation distortion. Combined with the B600’s amplitude-perfect Linkwitz-Riely 4th-order acoustic crossover, these advanced drivers deliver remarkably flat frequency response, so that every sound you hear is True to Nature.

Silence Please

The Synchrony B600 incorporates several measures to suppress unwanted noise and vibration. The enclosure has extensive internal bracing to minimize resonances that can cause uneven response and blur transients. The front baffle is clad in a 5mm-thick solid aluminum plate to minimize “baffle talk” that can obscure fine detail.

On the bottom of the enclosure are four isolation feet, custom designed for PSB by IsoAcoustics, that prevent vibrations from the drivers and cabinet from being reflected back into the enclosure. This translates to improved micro-detail, clearer transients, a wider soundstage, and more precise imaging.

Furniture Grade

PSB’s Synchrony B600 Premium Bookshelf Speakers are a feast for the eyes as well as the ears. Available in Satin Walnut Veneer and High Gloss Piano Black finishes, they’ll fit gracefully into any listening space. Acoustically transparent magnetically attached grilles enhance the B600’s visual appeal. PSB offers matching stands that provide a non-resonant connection to the speakers’ IsoAcoustics isolation feet.