Unison Unico 90

Unison Research Unico Simply 90 is Where Power Meets Poetic Precision.

Imagine an amplifier that makes music feel alive, unfolding in space with soul, presence, and detail that stop you in your tracks. That’s the Unico Simply 90 in a sonic snapshot.

Crafted in Italy by Unison Research, the Simply 90 is a hybrid integrated amplifier that blends old-school tube magic with modern muscle. Its unique two-stage design, built with a pure Class A tube input (ECC83/ECC81 in a totem-pole configuration) feeding a robust Class AB HEXFET output stage, delivers breathtaking dynamics and natural musical flow. There’s no global feedback, just two direct signal stages: what you hear is honest, rich, and incredibly engaging.

🎶 How It Transforms Sound

💥 Low-End Authority + Agile Expression

With 100 W per channel into 8Ω (160 W into 4Ω), the Simply 90 doesn’t just drive speakers, it unlocks them. Bass-heavy tracks hit hard with control and composure, while subtle acoustic textures remain fully intact.

🧠 Speaker-Enhancing Versatility

From high-sensitivity designs to more demanding floorstanders, the Unico 90 adapts effortlessly. It lights up loudspeakers from top to bottom, bringing out their fullest potential.

🖼️ Transparent Musicality

The Simply 90 doesn’t impose a sonic signature. Instead, it acts like a clean, fast-moving conduit between source and speakers. Change a DAC or source component and you’ll hear the character difference clearly, this amp reveals rather than masks.

🔧 Pure Design, Pure Sound

• Hybrid Two‑Stage Architecture (Zero Global Feedback): A tube‑based input stage (ECC83 + ECC81) directly drives a Class AB output. Simplicity breeds transparency.

• Dual Mono Layout: Maximizes channel separation and stereo imaging.

• Six Inputs for Maximum Flexibility: 3 × RCA, 2 × XLR, and 1 × RCA bypass input for easy integration with AV or home theater systems.

• Bi‑wiring Ready Output Terminals: 4 connectors per channel for optimized speaker pairing.

• Specifications:
  • 100W + 100W into 8Ω, 160W + 160W into 4Ω
  • Frequency response: 12 Hz – 45 kHz (–1 dB)
  • THD: < 0.15% @ 1 kHz/1W
  • Input impedance: 21kΩ // 300pF
  • Dimensions: 43.5 × 44 × 18 cm • Weight: 20 kg

🎧 Listening, Elevated

The Unico Simply 90 is the kind of amplifier that makes you revisit old albums just to hear what you’ve been missing. Cue up something intimate like solo piano or jazz trio and feel the air and timing between notes. Or push it hard with deep, electronic bass or cinematic orchestration, the power stays composed, the sound stays clean.

It brings out the best in your speakers, and in your music.

As noted in Twittering Machines’ review, the Simply 90 offers “stiff power, agility, and heart” all qualities that let your gear sound its best, and your music feel fully alive.

✨ Final Take

The Unico Simply 90 doesn’t chase specs, it chases emotion. With its hybrid soul, minimalist design, and robust build, it delivers a sound that’s clear, full-bodied, and deeply musical. Whether you're building a system around it or upgrading your current rig, this amplifier invites you to listen longer, deeper, and more often.

If you believe hi-fi should stir the heart as much as impress the ear, the Unico Simply 90 might just be your perfect match.