Solaria
from $27,800 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.
The 45 triode
A faster bass that hits harder
Close to the 300B in its midrange and treble, the 45 has a faster bass that hits harder.
Music
Instrumental, rock, metal, electronic
That speed makes Solaria a good match for instrumental music, rock, metal and electronic music on high-sensitivity loudspeakers and headphones.
Two chassis
A quiet supply
An external supply with kenotrons, galvanic isolation, custom transformers and chokes. A push-pull version doubles the power.
Made to order
Built by hand
Each Solaria is built by hand to order and numbered on its nameplate.
Solaria
Numbered unit — Opus No. on the nameplate
- Model
- Class A single-ended integrated amplifier on 45 triodes, 2 W
- In brief
- The 45 has a dense, saturated tone, with a textured midrange and delicate treble.
- Queue deposit
- 50% · from $13,900
- Lead time
- Seven pieces of gear a year, each built by hand to order. Current lead time: six months or more.
- Push-pull (PP)
- The stock build is single-ended. A push-pull version is built to order for +50% of the price. Push-pull from $41,700 Request a push-pull build
- Origin
- Made in Kazakhstan by Dmitriy Gubchenko
- Warranty
- 1 year (extra warranty available: +1 or +2 years)
Part of the Legacy collection
- Music it suits
- Instrumental · rock · metal · electronic
- Compared with
-
- 300B (Atlas)
From the atelier
Solaria runs two 45 triodes single-ended in Class A, 2 W per channel. The 45 has a dense, saturated tone with a textured midrange and delicate treble close to the 300B — but its bass is faster and hits harder. That speed makes Solaria a good match for instrumental music, rock, metal and electronic music on high-sensitivity loudspeakers and headphones. A push-pull version doubles the power.
We state the power the amplifier delivers in pure Class A at the stated distortion; the figure comes from the unit’s own measurement report.
All tube amplifiers are built as two-chassis designs by definition, with a galvanic-isolation transformer and a ground-lift switch.
Lid closedLid openDemograf Audio Solaria 45 Tubes Universal AMP
Emission Labs 45 Tubes. Demograf Audio Galvanic Transformers. Jensen Capacitors. Silver AMRG Resistors. Cardas Silver Wiring.
Two chassis: the amplifier and an external supply with two 6D22S kenotrons, galvanic isolation, custom transformers and chokes.
- Output: 2 × 45
- Input: 2 × 6Zh4 (EL8, AL4, EF14, ML6 optional)
- Rectifier: 2 × 6D22S or 1 × 5C3S
- Weight from 45 kg with the power supply
| Component | Manufacturer | Country of origin |
|---|---|---|
| Output tubes 45 | Selected and matched | US / EU / UK (NOS) / Other Vintage |
| Input tubes 6Zh4 | NOS, selected | US / EU / UK (NOS) / Other Vintage |
| Rectifier tubes 6D22S | NOS, selected | US / EU / UK (NOS) / Other Vintage |
| Transformers and chokes | Demograf Audio (custom-wound) | or analog by Hashimoto / Tango / Tamura |
| Volume control | ALPS | Japan |
Photo {n} of {total}
Simplified diagram of the stock configuration. The exact circuit for your options is confirmed with the atelier.
When delivering to countries that have imposed sanctions, we do not install sanctioned components; we fit vintage and modern equivalents instead.
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
- 2 W per channel at 8 Ω (Push-Pull version with double power available on request)
- Amplifier class
- Pure Class A
- Channels
- 2 (Stereo)
- Inputs
- Analogue RCA (Optional: Balanced XLR)
- Headphone outputs
- 1 × 6.3 mm TRS, 1 × XLR 4-pin (Optional: 2.5 mm, 3.5 mm, 4.4 mm Pentaconn, dual XLR 3-pin, Electrostatic/EST)
- Speaker outputs
- Standard binding posts (optional: Demograf Audio plugs)
- Load impedance
- 8 Ω (Optional: 4 Ω / 16 Ω customisation)
- Output tubes
- 2 × 45 tubes
- Input tubes
- 2 × 6Zh4 or EL8 / ML6 / AL4 / EF14 optionally
- Rectifier tube
- 2 × 6D22S — darker tone; or 1 × 5C3S — brighter signature
- Volume control
- ALPS potentiometer or optional Demograf Audio Custom Stepped Attenuator
- Special features
- Ground Lift switch (selectable ground loop isolation)
- Internal wiring
- Proprietary “RareCoreFusion” Alloy wire (other options available)
- Mains
- 100 / 120 / 230 V — set at order time, plug to match (NEMA, Schuko, BS 1363 / type G)
- Weight (with power supply)
- From 45 kg / 99 lb
- Dimensions
- From 450 × 450 × 250 mm
Custom options
Stock items are included in the price. Every option is agreed with the atelier before the build starts.
Circuit
- Single-Ended — classic, detailed sound, 2 W per channel Stock
- Push-Pull — double the output power, a fuller midrange and bass +50% from $41,700
Input tubes
- 6Zh4 Tubes Stock
- EL8 Valvo — More detailed sound
- AL4 — heavier bass and midrange
- EF14 — More authentic MF, e.g. Opera / Symphonic music
- ML6 — More neutral sound
Rectifier tube
- 6D22S — Darker sound Stock
- 5C3S — Brighter sound
- Other Type (on request)
Output tubes
- 45 Tubes Stock
- Other Similar Tubes (on request)
Component upgrades
- Premium Capacitors Suite (Duelund, Mundorf, Miflex etc.)
- Tango, Tamura or Hashimoto transformers and chokes, fitted on request
- Silver AMRG Resistors & Premium Cardas Wiring Kit
- High-End Connectors Suite (e.g. Furutech Top-Tier plugs)
- Solid-core Copper Speaker Connectors
- Premium Solid-core Copper Connectors with Galvanic Gold / Silver Plating
- Vintage Tubes
- Integrated Tone Control Block Module / Filter
- Transformer taps for 4 or 16 Ω (additional winding)
- Bi-wiring integration supplement
- Tri-wiring integration supplement
- One additional Analogue RCA Input
- One additional Analogue XLR Balanced Input
- Demograf Audio High-End Swiss-Stepped Pre-Amp (similar to Stevens & Billington TX-103)
- Variable GAIN Control Module
- 4.4 mm Pentaconn Output Termination
- Dedicated STAX Electrostatic Output Interface
- Fully Balanced XLR Amplifier Architecture
- Additional Reserve Matched Pair of low-noise Tubes
Mains inlet, outlets & contacts
- IEC C14 Chassis Input — Standard Spec Stock
- IEC C20 High-Current Inlet — Heavy-Duty Spec
- European Standard: Schuko (Type F)
- US / Japan Standard: NEMA 5-15R (Type B)
- British Standard: BS 1363 (Type G)
- Universal Interface: Direct IEC C13 Outlets
- Pure Copper Unplated — e.g. MSound MS-06(Cu) — Organic & Balanced Tone Stock
- Gold Plated Contacts — e.g. Furutech FI-09(G) — Warmth & Rich Midrange Texture
- Rhodium Plated Contacts — 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
- Protective tube cage (child & pet safety)
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
Which tubes does the Solaria use?
Stock tubes are 45 output triodes, 6Zh4 input tubes and two 6D22S rectifiers (a single 5C3S for a brighter tone). Similar output tubes can be fitted on request.
How is the Solaria 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 Solaria 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.
