Integrated Amplifiers

Anyone who spends time idly clicking between websites will be familiar with the HTTP 404 error, which occurs when a browser can't find what it was looking for. Coincidentally, the Moonriver Model 404 Reference amplifier, which is priced from £4495, has a similar 'error': there may be a USB-B port on its rear panel, offering the prospect of connecting a computer to play music, but there's nothing behind it, due to circumstances beyond the control of the amp's Swedish manufacturer.

The Chord Electronics Anni, selling for £1195, isn't the company's first compact amplifier – that honour goes to the £2900 TToby [HFN Feb '17], designed as a partner for the Hugo TT 2 DAC/pre/headphone amp [HFN Dec '15]. But the Anni is smaller, at just 16cm wide and 4.25cm tall, much lighter at 625g, and conceptually different from the TToby.

OK, OK, there are those who think 'hybrid' is a dirty word. If your glass is half-empty, it signifies compromise, or – worse – indecisiveness. If you're a cynic, then it's purely a commercial choice. But if your glass is half-full, then it's a convenient solution to various problems. As PrimaLuna has only ever made all-valve amplifiers, the company's first hybrid needs some explaining. More to the point, at £6198, the PrimaLuna EVO 300 Hybrid – clearly related to the all-tube EVO 300 [HFN Mar '21] – is its costliest product.

Maybe one grows less ornery with age, or perhaps there was a nice guy inside of me waiting to crawl out from my crotchety self. It's just that, only a few years ago, the frustrating elements of AVID's Sigsum integrated amplifier would have had me cursing Editor PM for asking me to review it. So, there's minimalism here, and there's contrariness, and that's just the lack of a remote control. In a product a fiver short of £15,000.

As the model designation suggests, this isn't the first all-in-one network audio system from German high-end company AVM. Replacing its existing Inspiration CS 2.2 model, the new Inspiration CS 2.3, selling for £5250 in black or silver finishes, with a chrome 'Cellini' finish available as a somewhat glitzy extra-cost option, is based around the company's latest streaming platform.

Until the mid-1990s, valve amplifiers were typically persona non grata. The '80s had been all about solid-state – from tweaky low-powered integrateds to mega powerful monster power amps – and tubes didn't so much as get a look in. By the turn of the millennium however, the pendulum had swung back and tube amps were reinvented as exclusive objects of luxury and desire, famed for their sweet and satisfying sound. How times change!

Never judge a book by its cover… or an amplifier by its industrial design. Take the Kula integrated amplifier from Groningen-based Mola-Mola – at first glance you may raise an eyebrow at this relatively compact, if solidly-built and undeniably stylish, integrated amplifier's £9900 price-tag. Then, complete with optional onboard DAC (£5999) and £1799 MM/MC phono stage, it adds up to just under £17,700 – well, that should raise the other brow into an expression of some shock.