Amplifier on Anthony Cossey Blog -- Music, HiFi, Studios and Stories

Violectric HPA V200

Sun, 15 Mar 2026 00:00:00 +0000

Violectric HPA V200 — Bavarian Headphone Driving Excellence

Violectric, from Konstanz on the shores of Lake Constance, has been building premium headphone amplifiers since before headphone amplifiers were fashionable. The HPA V200 is their classic model — a fully discrete, dual-mono design that’s been a reference in the headphone community for years. German engineering at its most confident.

Build & Design

Built like a Bavarian bank vault. The V200 is heavy, solid, and impeccably constructed. Every connection, every component speaks of professional-grade manufacturing. The front panel has dual headphone outputs (6.3mm), a pre-gain switch, and a smooth, precise volume control. Inputs include balanced XLR and RCA. There’s no balanced headphone output — Violectric provides that on the V280/V281 models above.

Singxer SA-1

Tue, 10 Mar 2026 00:00:00 +0000

Singxer SA-1 — Class A Bargain Hunter

The Singxer SA-1 is a fully balanced, Class A headphone amplifier that costs a fraction of what similar designs command from established brands. Using discrete components throughout, it delivers the warmth and authority of Class A amplification at a price that seems almost too good to be true.

Build & Design

Impressive for the money. Full aluminium chassis, large volume knob, comprehensive front panel with gain and input selection. The SA-1 runs warm (Class A bias draws significant power), so ventilation is important. Both 4-pin XLR and 4.4mm balanced outputs are provided alongside standard 6.3mm. Build quality is solid and professional.

Lake People G111

Thu, 05 Mar 2026 00:00:00 +0000

Lake People G111 — German Precision Amplification

Lake People is the professional division of Violectric — same German engineering, same factory in Konstanz, but targeted at studios rather than audiophiles. The G111 is their workhorse headphone amp, and it’s one of the best-kept secrets in headphone audio. No frills, no nonsense, just superb amplification.

Build & Design

Industrial and professional. The G111 looks like it belongs in a broadcast facility — clean aluminium chassis, simple front panel with volume and gain controls, 6.3mm output. It’s built to professional standards with balanced XLR inputs and a robust internal layout. Not beautiful, but reassuringly purposeful.

Burson Soloist 3X GT

Sat, 28 Feb 2026 00:00:00 +0000

Burson Soloist 3X GT — Australian Muscle Amp

Burson Audio from Melbourne takes a different approach to headphone amplification — big, powerful, and unashamedly musical. The Soloist 3X GT is their flagship headphone amp, using Burson’s proprietary discrete op-amps and a Class A/AB circuit that delivers more power than most headphones will ever need. It’s the V8 muscle car of headphone amps.

Build & Design

Substantial. The Soloist 3X GT is a large unit with a machined aluminium case that runs warm — it’s Class A biased, so this is by design. The front panel has a motorised volume knob, gain switch, and input selector. Build quality is excellent with a premium, industrial aesthetic.

Topping A90 Discrete

Mon, 23 Feb 2026 00:00:00 +0000

Topping A90 Discrete — Transparent Power on Tap

The Topping A90 Discrete is the measurement champion’s headphone amp. Like its DAC stablemate the D90LE, it measures extraordinarily well — essentially transparent by any objective standard. Topping replaced the original A90’s op-amp design with a fully discrete circuit, and the result is their most refined amplifier to date.

Build & Design

Full-size desktop unit with a clean, professional aesthetic. The front panel has a large volume knob, gain switch (low/high), input selector, and power button. Balanced XLR and 4.4mm outputs join the standard 6.3mm single-ended. Build quality is solid aluminium throughout.

Schiit Magni Piety

Wed, 18 Feb 2026 00:00:00 +0000

Schiit Magni Piety — Budget Amp Perfection from Schiit

I’ve had the Magni Piety in my chain since it launched, and it’s the product I recommend more than any other. At its price point, it’s not just good value — it’s borderline unfair to the competition. Schiit took their entry-level amp and gave it a discrete, fully balanced circuit that has no business sounding this good for the money.

Build & Design

Classic Schiit: compact aluminium chassis, single volume knob, one input, one output. The Piety adds balanced input and output via 4.4mm connections — a meaningful upgrade over the standard Magni. Build quality is solid, if deliberately minimal. It’s tiny, unobtrusive, and runs warm but not hot.

FiiO K9 Pro ESS

Sun, 08 Feb 2026 00:00:00 +0000

FiiO K9 Pro ESS — Desktop Powerhouse Combo

FiiO has been making excellent portable audio gear for years, and the K9 Pro ESS represents their assault on the desktop market. It’s a combined DAC/amp using dual ES9038PRO chips with both balanced and single-ended headphone outputs — essentially a complete headphone system in one box.

Build & Design

Substantial and well-built. The K9 Pro is a full-size desktop unit with a large volume knob, clear display, and comprehensive connectivity. Build quality is excellent — brushed aluminium, solid feel, clean layout. It’s heavier than expected, which inspires confidence. Inputs include USB, optical, coaxial, and Bluetooth (with LDAC). Outputs include 6.3mm, 4.4mm balanced, and XLR balanced headphone outputs, plus line out.