Audio Designs and Manufacturing (ADM) ADM 668 Card Amplifier

$49.00 Price Tier: Budget

5.0 (1)

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Page last updated Jan 14, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated January 14, 2026.

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Etsy

$49.00

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Average Price: $49

Budget/Beginner

$599

$2000+

Price Tier

In the Preamps category, ADM 668 Card Amplifier is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Description

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The ADM 668 has an exceptional low noise generation of -127 DBM equivalent input unweighted. All components are of the highest quality and are operated well within their electrical ratings. All transistors are silicon NPN. Either the input or output transformer may be balanced on the ADM 668. The gain of the amplifier is adjustable from 25 to 55DB by strapping of the mounting tray. The amplifier cannot be damaged by overload. When used in the CH6 card cabinet, eleven ADM 668 amplifiers will occupy only 3½" of panel space.

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