Audio Research S 200

At 200 watts per channel into 8 ohms, this is a solid-state amplifier with plenty of power in reserve.

Overview

The Audio Research S-200 is a stereo power amplifier, and it's a deliberate step in the company's solid-state work. Audio Research built its name on tube amplifiers. The S-200 applies the same goals - clarity, dimensionality and musical ease - to a fully solid-state design. All S Series amplifiers, including the S-200, are built in Audio Research's Minnesota facility alongside the flagship tube models, so the circuits differ but the shop is the same.

Audio Research markets it as part of a "next-generation solid-state design," and describes it as "thoughtfully crafted by our dedicated solid-state engineering" team. That wording suggests the same attention the company gives its better-known vacuum-tube amps. The S-200 is not an entry-level component. It combines high current delivery, precision and build quality, and it relies on proportion and finish more than flash.

Specifications

Manufacturer	Audio Research
Product type	stereo power amplifier
Rated power	200 WPC into 8 ohms
Rated power	400 WPC into 4 ohms
Frequency Response	+/- 0.1db from 20Hz to 20KHz
Damping Factor	300 from 20Hz to 1KHz
Noise	100dB
Power Requirements	@120VAC

Key Features

Dual-Mono Class AB Solid-State Design

The S-200 uses a dual-mono Class AB topology. That keeps the left and right channels separate, which cuts crosstalk and helps dynamic headroom. It can deliver 400 watts into 4 ohms, which points to big power supply reserves and good thermal management. Audio Research chose Class AB over switching or Class D designs, favoring linearity and sonic continuity.

Custom Machined Heat Sinks

Heat is handled by a new chassis design with custom machined heat sinks. They do the cooling job, and the precision-cut surfaces also shape the look of the amp. Heat dissipation matters a lot in high-power solid-state designs, so the attention here suggests a focus on long-term reliability. No data on failure rates or service life is available. The build implies an amplifier meant for sustained operation under load.

Front-Panel Power Output Meters

The most distinctive visual feature of the S-200 is its power output meters. These analog meters sit prominently on the front panel and give real-time feedback on channel activity and balance. Users like them, too. One observer commented, "Gotta love the dials..." on social media.

Minnesota-Built Manufacturing

All S Series amplifiers, including the S-200, are assembled in Audio Research's facility in Minnesota, sharing production space with the company's Reference Tube Amplifiers. That signals the same standards of assembly, inspection and quality control across both the solid-state and tube lines. For collectors, it ties the amp to hand-built, U.S.-assembled electronics.

Collectibility & Value

The Audio Research S-200 has a current market price of $12,950.00 USD, as listed by multiple authorized dealers including The Source AV, House of Stereo and Overture AV. An Australian retailer, The Audio Room, lists it at $24,995.00 AUD, reflecting regional pricing differences. No original release price or production timeline is documented, so depreciation or appreciation trends are hard to judge. User testimonials are scarce, but one observer noted: "this is the one I can see myself buying." No data on common failures, maintenance requirements or parts availability is available.