- Topping announces the DX9 Discrete DAC and headphone amp
- Uses delta sigma processing like an integrated DAC, but in discrete components like an R2R DAC
- Going on sale for £1,299 (about $1,750, AU$2,600)
Topping Audio may not be the most prolific hi-fi company, but when it strikes, it strikes hard; a recent DAC, amp and preamp combo called the DX5 II proved that. And its latest piece of gear is just as ambitious.
The brand has announced the Topping DX9 Discrete, which is now on sale in the UK for £1,299 (about $1,750, AU$2,600) — that’s not cheap, but given the tech inside, it’s also kind of a bargain.
This combination DAC and headphone amp builds on its predecessor in a few key ways, most crucially introducing Topping’s proprietary PSRM architecture for digital-to-audio conversion (which I’ll come back to in a moment), and support for a 10-band PEQ. Thankfully, it retains the older version’s design, including a cool see-through build.
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The DX9 has a display on the front that lets you monitor various factors and change settings, and it has a wide range of inputs and outputs including USB, optical, coax and HDMI, hitting up to 32-bit 768kHz PCM / DSD512 decoding.
The Topping DX9 Discrete supports Bluetooth 5.1 with LDAC, various aptX standards, AAC and SBC, and works as a headphone amplifier with six channels, capable of driving even particularly fussy cans. But easily its coolest feature is in the DAC space.
The company keeps Topping itself
As audio fans might know, picking an audio system can be hard, with many fancy techs solving one problem only to raise another. Do you go for an R2R DAC, with is discrete architecture creating a warm harmonic sound but often more distortion, or an integrated chip that has less distortion but can feel like a colder and more digital sound?
Topping thinks it can deliver the best of both worlds using its PSRM system. The uses discrete components, similar to R2R DACs, but uses them for delta-sigma processing, like an integrated chip — all through a 1-bit pipeline at extremely high sample frequencies (purportedly in the megahertz range).
According to Topping, this is a bit like it’s converting all your Hi-Res Audio files into DSD, which is natively based around the idea of 1-bit, high-frequency files.
The promise is that this all results in greatly reduced distortion compared to R2R DACs, while retaining a slightly more analogue-feeling sound for your music.
It’s a neat trick, and one I’m sure audiophiles will flock to, if at least to see just how well it works. But selling points aside, this still seems like a sold DAC-amp combo which should sit well against other other favorite options…
The best headphone DACs for all budgets
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tom.bedford@hotmail.co.uk (Tom Bedford)
