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About the Citadel 1.5
Theta Digital Citadel 1.5 is a high-end **mono power amplifier** pair from Theta Digital’s Citadel line. It is a fully balanced, differential, zero-feedback solid-state design built for reference-level playback, with single-ended and balanced inputs, massive output terminals, and an upgradable architecture. Retail pricing is listed at $25,000 for the pair in Audiogon’s Bluebook, while contemporary reviews also cited $15,800 per pair for the Citadel monoblocks; the Citadel 1.5 designation is associated with the same Citadel monoblock family and was introduced in 2008. [2][1][3][7]
Specifications
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