Final Audio S6000 Balanced Armature In‑Ear Monitors – Dual Sonion BA, Chromium‑Copper Housing, 4.4 mm Hybrid Cable

Flagship S‑Series IEM Tuned for Natural, High‑End Musicality

The final S6000 is the flagship model of final’s S Series, created to push the boundaries of what balanced armature drivers can achieve. Drawing on fifty years of Japanese acoustic research, the S6000 combines dual custom Sonion full‑range BA drivers with a precisely machined chromium‑copper housing and a high‑end hybrid cable to deliver a sound that is both emotionally rich and truthfully transparent. If you value realistic vocals, expansive staging, and fine micro‑detail, the S6000 is engineered to be your endgame all‑BA IEM.

Natural, True‑to‑Life Tuning with Subtle Warmth

While final’s A‑Series pursues ultimate clarity through dynamic drivers, the S‑Series focuses on musicality via balanced armature technology and carefully selected metal housings. For the S6000, final chose chromium‑copper, a material with exceptional hardness and a unique crystal structure. Its high rigidity works in perfect synergy with the dual BA drivers to achieve an ideal tonal balance: warm and engaging, yet clean, open, and highly resolving. A dedicated internal resistor is used to fine‑tune the mid and upper‑mid region, enhancing vocal presence, clarity, and spatial precision without harshness.

Chromium‑Copper Housing & Modular Precision Construction

The chrome‑plated copper housing with blasted finish is meticulously machined to control resonances, lending the S6000 its fast, energetic, and richly resonant character. The earphones use a fully modular construction rather than glue‑heavy assembly; internally, each component is mechanically fixed like fine clockwork. This suppresses unwanted driver vibration and preserves micro‑details, contributing to a deep, black background and highly stable imaging.

Unlike many IEMs, the S6000 is designed to be serviceable with special tools, enabling long‑term maintenance and extending product life (note that user disassembly typically voids warranty).

Dual Horizontally Opposed Sonion BA Drivers

At the heart of the S6000 are two custom full‑range balanced armature drivers from Sonion, arranged in a horizontally opposed layout. This configuration helps:

• Cancel excess mechanical vibration between drivers for lower distortion and higher fidelity.
• Improve dynamic balance and coherence across the frequency range.
• Deliver refined detail and smooth, continuous frequency response from bass through treble.

The result is a wide, deep, and open soundstage where cymbal overtones linger naturally, snares sound crystalline, and midrange textures—breaths, vibrato, and phrasing—feel intimate and lifelike.

High‑Impedance Design for Ultra‑Quiet, Dynamic Playback

With an impedance of 225 Ω and sensitivity of 96 dB/mW, the S6000 follows classic high‑impedance principles historically favored in home audio. On modern high‑voltage DAPs and DAC/amps, this design helps:

• Reduce current‑induced noise from the source.
• Maintain an exceptionally quiet, black background.
• Enhance perceived dynamic range, letting subtle volume gradations and layering come through more clearly.

This makes the S6000 an excellent match for high‑quality portable players and desktop stacks that can provide sufficient voltage swing.

Hybrid 12‑Core Cable with 4.4 mm Balanced Termination

To fully unlock its performance, the S6000 is paired with a soft hybrid cable that combines single‑crystal copper and silver‑coated OFC, totaling 12 cores. This construction delivers:

• Balanced tonal refinement with rich midrange and extended, smooth highs.
• Improved signal integrity and channel separation.
• Excellent flexibility and low microphonics for everyday comfort.

The cable uses a 0.78 mm 2‑pin connector developed by final for reliable contact and broad upgrade flexibility, and it comes terminated in a 4.4 mm balanced plug to maximize current delivery and system stability.

Comfort‑Focused Cylindrical Design

The S6000’s cylindrical shell shape supports both straight‑down and over‑ear wearing styles. The angled connection between the housing and cable reduces touch noise and helps the IEM sit securely and comfortably against the ear, making it suitable for long listening sessions at home, in the studio, or on the move.

Fusion‑G Eartips & Included Accessories

final equips the S6000 with its next‑generation FUSION‑G eartips, featuring a triple‑hybrid structure (ultra‑dense foam, soft silicone, and highly elastic silicone). These tips provide:

• Excellent passive noise isolation with minimal pressure on the ear canal.
• A stable seal across different ear shapes.
• Comfortable wear for extended sessions.

The S6000 package also includes a silicone carry case and Type B ear hooks for enhanced fit and cable stability.

Product Specifications

• Drivers: 2 × custom full‑range Sonion balanced armature drivers (horizontally opposed)
• Housing: Chromium copper / blast finish
• Connector: 0.78 mm 2‑pin
• Impedance: 225 Ω
• Sensitivity: 96 dB/mW
• Cable: Soft hybrid 12‑core cable (single‑crystal copper + silver‑coated OFC), 4.4 mm balanced
• Cable Length: 1.2 m
• Weight: Approx. 28 g (earphones only)

What’s Included

• final Audio S6000 IEMs
• FUSION‑G eartips (multiple sizes)
• Silicone carry case
• Ear hooks (Type B)
• Hybrid 12‑core 4.4 mm balanced cable