An improved version of the original Advent loudspeaker, with a 12-inch acoustic suspension woofer and an enhanced crossover for deeper bass and higher output.
Overview
The Advent Large Advent came out in 1970 as an upgrade to the original 1968 Advent Loudspeaker. The goal was more powerful, extended bass and more output. Advent Corporation built it. Henry Kloss founded the company in 1967 in Cambridge, Massachusetts, and the speaker carried forward the "New England sound" philosophy from Kloss’s earlier work at Acoustic Research and KLH. It used a 12-inch acoustic suspension woofer in a sealed cabinet. That design is known for tight, natural bass without the boomy character of ported systems. The original Advent had a 10-inch woofer. The larger driver and improved internal design gave the Large Advent deeper bass response and greater dynamic range. The crossover was upgraded too, described as “better” or “enhanced,” but no specific frequency or component details are documented.
Design
The Large Advent used a sealed cabinet with an acoustic suspension woofer. That was Advent's usual approach, aimed at low distortion and accurate bass. Its sound is noted for full, warm bass that stays well-controlled and natural-sounding, never overblown. Audiophiles associate that trait with the “New England sound.” The cabinet was larger than the original Advent's, though exact dimensions, materials, and finish are not specified in available sources.
Context
The Large Advent (1970) was positioned as an improved version of the 1968 Advent Loudspeaker, with better performance and the brand's commitment to accessible high fidelity. It preceded later models like the Advent/2 (1970) and Advent/3 (1972), which were more compact, budget-friendly alternatives. The next major step was the New Advent (1977), a complete redesign with improved drivers and cabinet construction. That makes the Large Advent a key transitional model in Advent's speaker lineage.
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