John Atkinson

Retailer Denver Audio Designs was featuring Thiel's elegant-looking SCS4T tower speakers ($3690/pair) in its RMAF room. But the Dire Straits album playing when I entered the room had more low bass than I remembered the Thiels giving when we reviewed them. The system was familiar—Simaudio Moon 360D player, 350P preamplifier, and 330A amplifier, all wired with StraightWire—but then I saw in the corners a pair of Thiel's new USS subwoofers. The towers were bring run full-range, with the subs reinforcing the sound below 40Hz.

Thiel’s long-awaited trickle-down speaker from 2008’s ground-breaking CS3.7, the CS2.7 ($9900/pair), made its North American debut in one of the Denver Audio Designs rooms. It combines the coaxial HF/MF unit that the late Jim Thiel developed for the ‘3.7 with a proprietary 8” woofer, reinforced with a passive radiator to give claimed bass extension to below 35Hz. Frequency response is specified as 35Hz–20kHz ±2.5dB, and crossover filters, of course, are all first-order. (No impedance spec was given; Thiel speakers have always been current-hungry.) The CS2.7s were demmed with Aragon Iridium 400W monoblocks ($7998/pair), an Aragon Sound Stage digital preamp ($4499), an Arcam CD37 SACD/CD player ($2299), an Arcam FMJ D33 D/A processor, and Straight Wire Expressivo interconnects and speaker cables, and Straight Wire Blue Thunder AC cords. The sound of Ryan Adams’ “Dirty Rain” had extended lows, grain-free highs, and superbly stable, well-defined stereo imaging.

Three products are the subjects of lengthy followup reviews in the December issue of Stereophile: MBL's Noble Line N31 CD player-D/A processor, the GoldenEar BRX loudspeaker, and Alta Audio's Alyssa loudspeaker.

One reason Stereophile publishes a FollowUp is when the original review leaves an issue unresolved or where further thoughts would be useful. Such was the case with the magazine's March 2022 issue, which had followup reviews on the iFi ZEN CAN headphone amplifier and ZEN DAC Signature V2 D/A processor ($599/pair). the Pro-Ject Phono Box RS2 phono preamplifier ($1999), and the Canton Reference 7K loudspeaker ($6995/pair).