Audio World

Issue 92

Features Old School: Jeff Dorgay revisits the KEF C60s 995: Kanto YU6 Powered Speakers By Jerold O’Brien Journeyman Audiophile: Totem’s Sky Towers By Rob Johnson Mine: It Should Be Yours Peanuts Watch Plaid Flannel Jammies Blue Wine Segway’s Go Kart and more…. Music Playlists: We share our readers choices from around the world Can’t Get [...]

Auralic Aries G1

Hoping to capture a wider audience, Auralic unveils a lower-cost version of its impressive Aries G2 streaming transport and HFC reckons there's precious little in it

SOUL NOTE A2

Soulnote A-2 is a very simple, high speed, perfectly balanced non-NFB amplifier with just adding an input selector and an attenuator to the power amplifier.

"It is an integrated amplifier equipped with various monaural modes such as a new type of BTL / bi-amp and a power amp mode. BTL does not use left and right channels. By sing a balanced amplifier with only one side channel it becomes a mono BTL differential amplifier with pure tone quality."

The attenuator is a method of switching high precision resistors with relays.

Input terminal, selector, relay type attenuator, non-NFB balanced voltage amplifier, up to the shortest place on one PWB.

Output stage. The power transistor and power supply capacitor are connected by a thick copper foil of 70 μm.

4 parallel power transistors are screened and matched.

Internal layout

Square wave response. 100 kHz !! It is possible because it is a complete non-NFB amplifier.

Mode switch.

■ Specifications

- Output 100 W × 2 (8 Ω), 200 W Ũ 2 (4 Ω), 400 W (BTL MONO 8 Ω)

- Total harmonic distortion factor 0.03% (50 W 8 Ω)

- Frequency characteristics speaker (8 Ω 1 W): 3 Hz to 240 kHz (± 1.0 dB)

- Input sensitivity / impedance LINE 1, 2, 3 (balance): 700 mV / 16 kΩ, LINE 4, 5, 6: 700 mV / 8 kΩ

- S / N ratio 110 dB (IHF A network)

- Power supply voltage AC 100 V 50/60 Hz

- Power consumption 355 W (J60065), 125 W (idling)

- Maximum external dimensions Body: 430 (W) x 160 (H) x 410 (D) mm

- Weight Approximately 20 kg

www.kcsr.co.jp

VIZIO PQ65-F1 P-Series Quantum 4K HDR Smart TV Reviewed

Vizio may not have been first to market with Quantum Dots, but Andrew Robinson says that with the P-Series Quantum PQ65-F1, the company gets the technology right--if only if it were available in sizes larger than 65 inches.

CLAUDIO ABBADO LOST TAPES

Previously-unreleased, this 1971 live recording from Vienna’s Grosser Saal of Claudio Abbado and the Wiener Philharmoniker was recently discovered in the archives of Austrian Radio – the ‘ORF’. The young music director from La Scala had been invited to conduct one of the orchestra’s subscription concerts by the musicians themselves, who had been so impressed with him during a previous collaboration in 1965.

His Schubert Symphonies 5 & 8 are now available: DG.lnk.to/AbbadoRediscovered

HomeTheaterReview's Wireless Over-Ear Headphone Buyer's Guide

Whether you're looking for unbeatable noise cancelation, best-in-class sonic performance, or a solid mix of performance, style, and comfort, Jerry Del Colliano sorts through the current crop of circumaural wireless headphones to help you pick the right fit for you.

Amazon Alexa Blueprints allow you to create your own Alexa skill in minutes

Amazon has released Blueprints, an easy to use set of templates that allows anyone to create custom skills for their Alexa devices, with no coding required.

THE TRIODE HEAVEN!

Some pure tube gear galore from the European Triode Festival 2018. Our dear friend Moriyama Kichiryu took photos at "the blind tasting contest 2018".

Polk Audio Magnifi MAX SR soundbar review

Polk Audio is the latest brand to add wireless rear speakers to a soundbar/subwoofer system, therefore offering a 5.1 solution to those not interested in the more traditional approach based around a separate amplifier, 5.1 speaker package and oodles of speaker cable.

The system in question is the Magnifi MAX SR, available for around £600. It's the expanded version of Polk's 3.1-channel Magnifi MAX, itself a more serious proposition than the compact Magnifi Mini.