These Écoute TH1 Bluetooth valve headphones are inspired by classic audio gear

High-end headphone design rarely strays far from established norms, but Écoute Audio is taking a different route with its TH1. These £900 wireless headphones attempt something unusual: translating the architecture of classic audiophile Hi-Fi into a wearable form.

At first glance, they look like a premium pair of over-ears. Look closer, and it becomes clear these aren’t conventional Bluetooth cans. Inside the aluminium chassis sits a fully discrete signal path more commonly associated with separates: a high-resolution DAC, a valve-based preamplifier and dual-mono Class A/B amplification.

This design moves away from the System-on-Chip approach used by most wireless headphones, where Bluetooth reception, digital processing and amplification are handled by a single integrated circuit.

It’s efficient, certainly, but it tends to limit how far performance can be refined. The TH1 instead breaks these stages apart, treating each as a dedicated component within a miniature Hi-Fi chain.

At the centre of this design is a small but significant piece of technology: the Nutube 6P1 dual-triode valve. Developed in Japan by Korg and Noritake Itron, it brings genuine tube behaviour into a compact, low-power format suitable for portable use. Here, it acts as a stereo preamp stage, shaping the signal before it reaches the headphone’s amplification stage.

The valve itself is visible through a small window in the left ear cup, glowing softly when in use. Service life is said to be over 30,000 hours. 

The valve itself is visible through a small window in the left ear cup, glowing softly when in use…

Elevated listening for the modern audiophile

The inclusion of a real valve isn’t simply cosmetic. Vacuum tubes handle audio differently to solid-state devices, introducing even-order harmonics said to reinforce rather than disrupt the original sound. The effect is often described as warmth or depth, though in practice it’s more about how notes bloom and decay, and how instruments occupy space within a mix. 

In the TH1, that valve stage feeds a pair of discrete Class A/B amplifiers, one for each channel. This helps preserve channel separation and stereo imaging, reducing crosstalk and allowing recordings to unfold with a greater sense of width and placement.

The signal ultimately reaches 40mm titanium-coated Mylar drivers, completing a chain that remains fully discrete from digital conversion through to output.

For all this complexity, the TH1 offers stand labels of convenience. 

Wireless listening is handled via Bluetooth 5.3, with support for high-quality codecs including LDAC and AAC. If you prefer a wired connection, USB-C enables high-resolution playback up to 32-bit/384kHz, while a 3.5mm input allows use with external sources or amplifiers. There’s even a passive mode, effectively turning the TH1 into a traditional set of wired headphones.

A dedicated app for iOS and Android allows listeners to adjust the internal DSP at firmware level, rather than applying conventional EQ on the source device. A selection of preset curves is available, alongside the option to create custom profiles.

Physically, the headphones are built around a closed-back design with aluminium construction, memory foam earpads and an adjustable headband. Active noise cancellation is included, alongside a transparency mode for situational awareness. Battery life is quoted at more than 20 hours.

The Écoute Audio TH1 is available now. The headphones come in a choice of two finish options – Gunmetal or Satin Aluminium –  and sell for £900.