Big, Expressive Sound From an Elegant Bookshelf

The Unitra ZGB-401 Bookshelf Speakers are designed for listeners who want full-bodied, expressive sound from a compact, space-friendly enclosure. A carefully engineered cabinet with a bass-reflex design blends precision, warmth and dynamic punch, while real wood-veneer finishes in Black Ash or American Walnut make them as much a design object as a loudspeaker. Modern sound in a classic form.

An Advanced Two-Way System

The ZGB-401 uses a precise two-way crossover to deliver a linear, faithful sound. Its high-frequency transducer is designed to improve directivity for a wide, stable stereo image, while the low-midrange driver's aluminium-ceramic membrane combines high rigidity with minimal mass — the recipe for fast, clean, low-distortion sound. It's a speaker that disappears into the music.

Tune It to Your Room

A supplied bass-reflex port plug lets you adapt the ZGB-401 to different acoustic conditions and placements — leave the port open for maximum low-end extension, or fit the plug for tighter bass in smaller or more reflective rooms. Built from two layers of MDF for a rigid, inert cabinet and dressed in real wood veneer, these are speakers built to last and to impress.

Why You'll Love the ZGB-401

• Advanced two-way system with a precise crossover for linear sound
• Aluminium-ceramic low-midrange membrane — rigid, light and low-distortion
• High-frequency transducer engineered for improved directivity
• Supplied port plug to tune bass to your room
• Real wood veneer (Black Ash or American Walnut) over a rigid double-MDF cabinet

Frequently Asked Questions

Are the ZGB-401 sealed or ported?

They use a bass-reflex (ported) design, and include a port plug so you can adapt the bass loading to your room and placement.

What finishes are available?

Real wood veneer in Black Ash or American Walnut, with a grille in black acoustic fabric or natural linen.

What drivers do they use?

A two-way configuration: a high-directivity high-frequency transducer and a low-midrange driver with a rigid, lightweight aluminium-ceramic membrane.

ZGB-401 Technical Specifications