Напольная акустика — Gershman Acoustics Grand Studio II

Gershman Acoustics of Canada builds the Grand Studio II floorstander as a dual-cabinet design. Two separate two-way enclosures, each derived from the Grand Studio stand-mount, are mounted one above the other on a stainless steel frame, so every speaker carries twice the driver complement of the single-box model. It differs from the smaller Studio II in its crossover, internal wiring and choice of drive units.

Key specs that matter

Gershman fits two 8 inch woofers and two 1 inch coated silk dome tweeters. The woofers sit at the outer ends of the array, one at the top and one at the bottom, while the two tweeters are grouped at the centre. Gershman gives the impedance as 6 ohm and recommends amplifier power of 70 W to 500 W. The tweeters are specified to reach past 30 kHz. The cabinet is 27.9 cm wide and 35.6 cm deep, and one speaker weighs 56.7 kg.

Engineering and use context

Gershman makes the woofer cones from extra thick black electroplated aluminium with a four-layer voice coil and a generous roll surround. The tweeters have ferrofluid cooling, a linear response faceplate, braided tinsel leads and a double chamber behind the dome. Enclosures are hand made from high density board between 19 and 25 mm thick and finished in several layers of hand polished piano black lacquer. The two boxes are carried by a contoured frame of solid stainless steel 12.7 mm thick, which alone weighs 42.2 kg and is bolted to a curved base of 25 mm HDF. This frame keeps the enclosures mechanically apart and adds mass to the structure. The crossover follows usual Gershman practice - hand soldered point to point, using high quality capacitors and 99 percent oxygen-free wire.

Pairing

Solid-state amplification with generous output into the nominal load makes more sense here than small valve amplifiers, and the weight per side calls for a firm floor in a room of at least 20 m2.

Alternatives

The Gershman Posh is another floor-standing model from the same maker, whose upper module holds a ceramic Accuton mid unit and whose two woofers sit in separate enclosures.