The New Yorker 1965
SOLID-STATE 40-WATT EIA AMPLIFIER, GARRARD CUSTOM PROFESSIONAL CHANCER, AIR-SUSPENSION ... Hall The Exponent 4/40 by Sylvania If you can't make room for a console — and won't settle for less than professional quality
High Fidelity 1966
The Exponent 4/40 went right to the top of its class. In style, in performance. It was recognized as a standout by everyone who heard it. And now there's a new member of Sylvania's component portable family— the Exponent 4/30. Designed to ...
Hi Fi Magazine 1965
40-watt IHF solid-state amplifier. FM/AM solid-state ... The Exponent 4/60 is a power-packed portable with professionally balanced components for faithful, crisp, "live" reproduction. With a ... Listen to it at your Sylvania dealer's. Under $300.
