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Abyss

Diana TC Signature

Driver
Planar magnetic
Enclosure
Open-back
Weight
369 g
List
$4,995
Loading the model

Abyss's lighter planar, 369 g with pads. Its new aluminium frame is about 100 g lighter than earlier Diana frames and is cut with a Fibonacci hole pattern. Each one is laser-engraved with its serial number and signed by the three designers.

Where to buy

List $4,995

Retailer prices checked 2026-10-21. We may earn a commission on purchases. How this works

Title block

Maker
Abyss
Model
Diana TC Signature
Made in
USA (Buffalo, New York)
Released
2026
Transducer
Planar magnetic
Enclosure
Open-back
Driver
63 mm
Weight
369 g
Impedance
72 ohms
Sensitivity
90 dB/mW
Frequency response
2 Hz – 58 kHz
List price
$4,995 USD

Drive requirements

Match an amplifier in the synergy calculator
LevelPowerVoltageCurrent
100 dB10.0 mW0.85 V11.8 mA
110 dB100 mW2.68 V37.3 mA
120 dB1000 mW8.49 V118 mA

Most headroom at 110 dB

Rated 90 dB/mW into 72 ohms. Estimated from published amplifier output.

Assembly drawing

1234567

Parts

  1. 1HeadbandLeather headband with Ultrasuede sling suspension; twist-and-flex band
  2. 2YokeAircraft-grade aluminum arms with magnetic, wear-free size adjustment
  3. 3GrilleOpen-back Fibonacci hole pattern in the aluminum frame
  4. 4Ear cupCNC-machined aircraft-grade aluminum, oven-cured polymer-ceramic finish, Gorilla Glass inlay
  5. 5Magnet arrayLarge neodymium magnet (grade and arrangement unpublished)
  6. 6DiaphragmUltra-thin planar diaphragm with EBR (Extended Bass Response); thickness unpublished
  7. 7EarpadsEuropean lambskin, US-made foams, pillow-top, bass-ported

Schematic planar magnetic assembly, annotated with the Abyss Diana TC Signature’s published materials. Not to scale.

Engineering notes

  • In-house 63 mm planar drivers with EBR (Extended Bass Response) technology
  • New CNC aluminum frame about 100 g lighter than earlier Diana frames, with Fibonacci open-back hole pattern
  • Bass-ported lambskin pads fitted as stock
  • Each speaker face laser-engraved with model and serial number and signed by the three designers

Design language

Jewellery-scale machining: a Fibonacci pattern in aluminium, a Gorilla Glass inlay and lambskin pads.

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