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Atreus
from $60,400 Made to order
Request a build slot Deposit, lead time and warrantyAll units in the photos are real. Some photos are AI-enhanced to improve image quality.
Atreus
Numbered unit — Opus No. on the nameplate
- Model
- Fully electrostatic open-baffle loudspeaker: curved and flat 2-micron panels, isobaric electrostatic bass, 20 Hz – 20 kHz
- Queue deposit
- 50% · from $30,200
- Lead time
- Seven pieces of gear a year, each built by hand to order. Current lead time: six months or more.
- Origin
- Made in Kazakhstan by Dmitriy Gubchenko
- Warranty
- 1 year (extra warranty available: +1 or +2 years)
Part of the Hypostasis collection
- Music it suits
- Vocal · acoustic · jazz · blues · symphonic · high-resolution recordings
- Compared with
-
- Menelaus (hybrid)
From the atelier
Atreus is the result of thirteen years of acoustic research: an open-baffle loudspeaker that is electrostatic across the whole range. The treble and midrange come from electrostatic panels, curved and flat, with a 2-micron membrane; the curved panels focus the sound on the listening position. The bass is electrostatic too — six membranes between eight 3 mm steel stators in an isobaric pack, reaching down to 20 Hz with the speed of the panels above. It needs a room of at least 20–25 m² and an amplifier that is comfortable with a 2–4 Ω load.
Each loudspeaker weighs about 60 kg, 50 kg of which is the steel stators of the bass section.
- HF/MF panels 180 × 60 × 15 cm, curved and flat
- MF/LF isobaric section 100 × 50 × 10 cm, 20 Hz – 1 kHz
- 5000 V bias from an integrated multiplier
- Optional external analogue crossover and four dedicated amplifier modules
| Component | Manufacturer | Country of origin |
|---|---|---|
| Electrostatic membranes (2 micron) | Demograf Audio | Own manufacture |
| Steel stators, 3 mm (8 per bass section) | Demograf Audio | Own manufacture |
| External analogue crossover (option) | Demograf Audio | Own manufacture |
| Amplifier modules Class D / AB (option) | Demograf Audio | Own manufacture |
Simplified diagram of the stock configuration. The exact circuit for your options is confirmed with the atelier.
Specification
Download the brochure PDF · EN · 0.8 MB
Measured on the stock configuration; options may change the figures.
- Transducer type
- Full-Range Electrostatic (Open Baffle)
- Speaker type
- Electrostatic. Passive version: panels only, driven by your amplifier; active version with built-in Class D amplification. The 5,000 V bias supply runs from the mains in both
- Number of ways
- 2 (HF/MF Electrostatic Panels + MF/LF Isobaric Electrostatic Section)
- Impedance
- 2–4 Ω (drops to about 1 Ω at 20 kHz)
- Sensitivity
- 85–86 dB
- Overall frequency response
- 20 Hz – 20 kHz
- MF/LF section response
- 20 Hz – 1,000 Hz
- HF/MF section response
- 600 Hz – 20 kHz
- Bias voltage
- 5000 V (Integrated multiplier system)
- Recommended room size
- Minimum 20–25 m²
- Mains
- 100 / 120 / 230 V — set at order time, plug to match (NEMA, Schuko, BS 1363 / type G)
- Total weight
- ~60 kg (including 50 kg steel stators)
- HF/MF dimensions
- 180 × 60 × 15 cm
- MF/LF dimensions
- 100 × 50 × 10 cm (Vertically Curved)
Custom options
Stock items are included in the price. Every option is agreed with the atelier before the build starts.
Configuration
- Standard Edition Active — Active Loudspeaker System
- Premium Edition Active — High-End configuration with premium preamplifier, amplifier and crossover components
- Active Upgrade — Four dedicated Class-D amplifier modules engineered by Demograf Audio
- Premium Active Upgrade — Four dedicated Class-AB amplifier modules engineered specifically for Atreus
- Upgrade — External studio-grade analogue crossover from Demograf Audio
- Option 1 — Passive Transformer Volume Control Preamplifier (TVC)
- Option 2 — Relay-Switched TVC with Remote Control Suite
- Option 3 — Active Solid-State Preamplifier with Remote Control Suite
- Option 4 — Active Tube Preamplifier with Remote Control Suite
- Standard design
- Custom — Individual custom design
- Premium — Custom exotic solid wood finish
- Priority build (+50% of the price)
Regional version
- 230 V — Schuko plug (Europe) Stock
- 120 V — NEMA plug (North America)
- 100 V — NEMA plug (Japan)
- 230 V — BS 1363 / type G plug (UK · Middle East)
Pairs well with
Does the Atreus use tubes?
The loudspeaker itself has no tubes; an active tube preamplifier is available as an option.
How is the Atreus serviced?
Loudspeakers need no routine service. Drivers, crossovers and terminals are repaired by the atelier for as long as parts exist.
How is it delivered?
Shipping and insurance are paid by the buyer and shown as a separate line in your quotation. Every unit is packed for long-distance transport in heavy-duty flight cases and a wooden crate.
Which mains voltage and plug?
Each piece of gear is built for 100 V, 120 V or 230 V mains with the matching plug (NEMA, Schuko or BS 1363 / type G). The voltage is fixed at order time, so tell us where the unit will be used.
How long does the Atreus take to build?
Build time is six months or more from the queue deposit, depending on the configuration and the queue; delivery takes from one month after completion. The atelier builds seven instruments a year. A priority build is available for an extra 50% of the price: your unit is moved ahead in the build queue.
* Photos are taken from real systems and show the specific configuration of a particular customer; your unit can look the way you want — all our equipment is fully customisable.
