JBL Synthesis SDR-35 £5999
When hunting for an AV receiver or amplifier, it can be hard not to get caught up in the specification battle. But those who become too focused on spec sheets may overlook the JBL Synthesis SDR-35. While its format support is thorough, its amplification for just seven channels and (current) lack of HDMI 2.1 connections are trumped by Denon receivers costing around a sixth of its huge price tag. However, what a spec sheet can never tell you is how a product sounds; and in this regard, the JBL Synthesis SDR-35 is a clear cut above any other AV amplifier we’ve tested over the past few years.
While that lack of HDMI 2.1 functionality might be alarming, it’s presently an issue only for hardcore gamers. The JBL already supports 4K signals at up to 60fps, which no movie source currently goes beyond, and format support is exemplary, with HDR10, HLG, Dolby Vision and HDR10+, Dolby Atmos, DTS:X, Auro 3D and IMAX Enhanced for audio all supported. Dolby Height Virtualization and DTS Virtual:x are also on board for those who want to simulate height effects without the use of physical ceiling or up-firing speakers.
Watching Deadpool, we’re immediately struck by the cleanliness and clarity of its delivery. There’s a beautiful naturalism to Deadpool’s voice, a richness and weight unmatched by less premium AV amps. In scenes with more characters, each voice has a clearly defined and unique timbre. Until you’ve heard a product as well sorted as the SDR-35, you don’t realise how imprecise others are in this regard. The JBL proves to be a nuanced and subtle performer, digging up the finest of details and deftly defining low-level dynamic alterations, but it’s also a true powerhouse when the action requires it. The edges of effects are crisply defined, with none of the aggressiveness of which more affordable amplifiers fall foul. The SDR-35 has an unrivalled rhythmic and spatial precision to the presentation of music too – detail levels, dynamics and timing are excellent. The SDR-35 is an extraordinarily good home cinema receiver. In terms of sound quality, it’s in a whole different league, delivering music and movies with a truly rare maturity and sophistication.