I've been variously enamored and critical of the sound of Acapella loudspeakers and electronics on previous occasions, but here, in a space I would have considered too narrow to be optimal, the German-handmade Acapella Cellini ($55,000/pair) sounded excellent. Never before shown at a US show, the Cellini stands out due to its hyper-spherical midrange horn. (The Acapella Violin, for example, has a spherical horn.) It also has Acappella's TW1 ion tweeter, and claims an overall frequency range of 28Hz–40kHz , and a sensitivity of approx. 91dB/W/m.

Shipping in the second quarter of 2016, Meitner's extremely powerful MTRX2 1kW monoblock amplifiers (price around $80,000/pair), which output 600W into 8 ohms and 1000W into 4 ohms, may be the weaker siblings of their flagship MTRX predecessors, but they have their own proprietary topology to make them feel their equal.

The picture shows the inside of Nagra's new HD Amp, whose 6 output devices are specified as driving 270W into 8 ohms, 1kW into 2 ohms. The HD Amp was on passive display, but Nagra's all-Nagra component chain, feeding Wilson Audio Sabrina loudspeakers, made quite a favorable impression.

VTL Amplifiers, Inc. introduced the $3000 TL-2.5i Performance Preamplifier at CES 2016. It features 6 line inputs, an optional $2000, internally retrofitable phono stage, two pairs of outputs, and a tape loop.

Scientific Audio Electronics (SAE), founded in 1967, has been out of business for decades. Recently, Morris Kessler of ATI, manufacturers of the ATI and Theta brands,helped restore the company. At CES, Bill Skaer, National Director of Sales, presented the firm's latest amplifier, the 125 lb, SAE 2 HP-D Display version ($19,995).

Quad electrostatic loudspeakers have been unavailable in the United States retail market for the past few years because there has been no importer. In the past 12 months, MoFi Distribution has stepped up to develop a dealer network and provide service. Jonathan Derda, Mo-Fi's National Sales and Marketing Manager, described the new service center in Fairfax, Virginia that will service all vintages and versions of the loudspeaker.

Finished in Lancaster Grey, the Quad PA-One headphone amplifier is a full-tube design, with a built-in DAC.

Pass Laboratories designer Wayne Colburn showed me their new INT-60 Integrated amplifier ($9000). Rated at 60Wpc, the amplifier uses the same heatsinks, power supplies, and output stages as the Pass Point 8 power amplifiers.

Pass Laboratories celebrated its 25th Anniversary in business by introducing its HPA-1 headphone amplifier ($3500). The circuitry is a two-stage CFA topology using cascaded ultra-low noise Toshiba JFETs driving complementary Fairchild power MOSFETs running in class-A.

Matthieu Latour, Nagra's Marketing Director, spent time showing me the Swiss company's new Classic Integrated Amplifier ($19,450). Both Nagra's Classic Integrated Amplifier and Classic stereo power amplifier deliver 100Wpc into 8 ohms and are strikingly similar, but differ in that the integrated unit has 3 RCA inputs and 1 XLR input and cannot be bridged. It uses a solid-state circuit preamplifier section. The Classic Integrated amplifier will be available in May, 2016.