Bellerophon
from $18,700 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.
Toshiba transistors
Linear and thermally stable
The output stage uses Toshiba bipolar transistors, known for linearity and thermal stability.
Headphones and loudspeakers
The same ease for both
Hard-to-drive planar headphones and full-size loudspeakers, from 25 W per channel; 50, 100 or 150 W to order.
Your converter
Chosen at order time
From the stock Cirrus Logic CS4397 to Philips multibit, Burr-Brown, R-2R or programmable-logic modules.
Made to order
A quiet background
Power transformers are wound to the Demograf Audio specification for a quiet background and wide dynamic headroom.
Bellerophon
Numbered unit — Opus No. on the nameplate
- Model
- Class AB amplifier on Toshiba bipolar transistors with a DAC of your choice, from 25 W
- In brief
- A DAC and a Class AB amplifier in one classic chassis: a complete source and amplifier, with no separate boxes.
- Queue deposit
- 50% · from $9,360
- 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 Invictus Valour collection
- Music it suits
- All genres — open, detailed and dynamic
From the atelier
Bellerophon puts a DAC and a Class AB amplifier in one classic chassis, so a complete source-and-amplifier system needs no separate boxes. The output stage uses Toshiba bipolar transistors, known for linearity and thermal stability; they drive hard-to-drive planar headphones and full-size loudspeakers with the same ease. The DAC is chosen at order time — from the stock Cirrus Logic CS4397 to Philips multibit, Burr-Brown, R-2R or programmable-logic modules. Power transformers are wound to our specification for a quiet background and wide dynamic headroom.
Stock build: black metal chassis, S/PDIF coaxial and USB (Amanero) inputs, RCA, 6.3 mm, XLR 4-pin and loudspeaker outputs, switchable ground lift.
- Output power 25 W per channel; 50 / 100 / 150 W optional
- DAC: CS4397 stock; TDA1540/1541/1547, PCM63, PCM1704, R-2R, programmable-logic optional
- ALPS volume control or Demograf Audio attenuator
Photo {n} of {total}
Simplified diagram of the stock configuration. The exact circuit for your options is confirmed with the atelier.
Specification
Download the brochure PDF · EN · 0.7 MB
Measured on the stock configuration; options may change the figures.
- Use
- Universal: loudspeakers and headphones
- Output power
- From 25 W per channel (optionally 50 / 100 / 150 W)
- Device type
- Combined DAC & Solid-State Amplifier
- Amplifier class
- Class AB
- Analogue inputs
- Unbalanced RCA | Optional: Balanced XLR
- Headphone outputs
- 6.3 mm TRS, 4-Pin XLR | Optional: 4.4 mm, 2.5 mm, Electrostatic
- Loudspeaker outputs
- Standard binding posts (Demograf Audio binding posts optional)
- Load impedance
- Stable into 4–16 Ω loads
- Transistors
- Premium Toshiba Bipolar Transistors
- Digital inputs (DAC)
- S/PDIF Coaxial, USB (Amanero) | Optional: BNC, I2S
- Volume control
- ALPS (optionally — Custom Attenuator by Demograf Audio)
- Internal wiring
- Proprietary “RareCoreFusion” Alloy wire (other options available)
- Special features
- Ground Lift Switch (Defeatable Grounding)
- Mains
- 100 / 120 / 230 V — set at order time, plug to match (NEMA, Schuko, BS 1363 / type G)
- Weight
- From 15 kg / 33 lb
- Dimensions (W × D × H)
- From 450 × 400 × 200 mm
Custom options
Stock items are included in the price. Every option is agreed with the atelier before the build starts.
Output power
- 25 W per channel Stock
- 50 W per channel
- 100 W per channel
- 150 W per channel
DAC
- Cirrus Logic CS4397 Stock
- Premium R-2R Resistor Ladder DAC Module
- Demograf Audio programmable-logic module
- Philips TDA1540
- Philips TDA1541
- Philips TDA1547
- Burr-Brown PCM63
- Burr-Brown PCM1704
Component upgrades
- Premium Capacitors Suite (Duelund etc.)
- Custom transformers and chokes
- AMRG Resistors & Premium Cardas Wiring Kit
- Exotic Top-Tier Connectors Suite
- Solid-core Copper Speaker Connectors
- Multi-DAC Topology
- Premium Solid-core Copper Connectors with Galvanic Gold/Silver Plating
- Integrated Tone Control Block Module / Filter
- Bi-wiring integration supplement
- Tri-wiring integration supplement
- Demograf Audio Swiss-Stepped Pre-Amp Circuit
- Variable GAIN Control Module
- 4.4 mm Pentaconn Output Termination
- Dedicated STAX Electrostatic Output Interface
- Fully Balanced XLR Amplifier Architecture
- Upgraded External Power Supply (PSU)
- ALPS Volume Control
- One additional Digital S/PDIF Coaxial Input
- One additional Digital BNC Input
- One additional Digital AES/EBU Input
- One additional Master Clock Input
- Raspberry Pi 5 Streamer inside
- Phase Control
- Low-pass filter (LPF)
- One additional Digital TOSLINK (Optical) Input
- One additional Digital I2S (HDMI Type) Input
- One additional Analogue RCA Output
- One additional Analogue XLR Balanced Output
- One additional Analogue RCA Input
- One additional Analogue XLR Balanced Input
Mains inlet, outlets & contacts
- AC Input: IEC C14 Chassis Input Stock
- AC Input: Heavy-Duty Spec — IEC C20 High-Current Inlet
- AC Output: European Standard — Schuko (Type F) Stock
- AC Output: US / Japan Standard — NEMA 5-15R (Type B)
- AC Output: British Standard — BS 1363 (Type G)
- AC Output: Universal Interface — Direct IEC C13 Outlets
- Contacts: Pure Copper Unplated (Organic & Balanced Tone) Stock
- Contacts: Gold Plated e.g. Furutech FI-09(G) (Warmth & Rich Midrange Texture)
- Contacts: Rhodium Plated e.g. Furutech FI-09(R) (Fast Transients & Fine Detail)
Finish & chassis
- Standard configuration Stock
- Priority build (+50% of the price)
- Precision-Milled Metal Chassis (CNC milling)
- Contoured Bent-Metal Enclosure
- Exotic Hardwood Chassis
- Glass-Integrated Aesthetic
- Premium Wood Inlays & Accents
- Solid-Billet Metal Enclosure
- Advanced Galvanic Finishing
- Custom Dimensions & Form Factor
- Parameter Status Display
- Multifunction Remote Control Suite
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 Bellerophon use tubes?
Bellerophon has no tubes — it is a solid-state Class AB design. A tube DAC can be paired with it if you want tube colour upstream.
How is the Bellerophon serviced?
Each unit ships with its own measurement report. The circuit is kept simple and serviceable, and Demograf Audio gear is serviced 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 Bellerophon 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.
