Der Verkäufer ist für dieses Inserat und dessen Inhalte verantwortlich.
Diverse / Andere Expressive Technologies SU-1 MC Step-Up Transformer / Ultra-Rare / 16kg
Preis: 8.900,00 €
| Gebrauchtgerät
Produktdetails
- Produktgruppe
- Phonoverstärker
- Hersteller
- Diverse / Andere
- Funktion
- einwandfrei
- Alter
- 34 Jahre Nach Schätzung
- Gebrauchszustand
- gebraucht
- Optik
- neuwertig
- Zubehör
- ohne Zubehör
- Farbe
- Black
- Neupreis
- 3.000,00 €
- Preis
- 8.900,00 €
- Seriennummer
- no serial number
Beschreibung
The Definitive Moving-Coil Interface:
Offered is the legendary Expressive Technologies SU-1.
Unlike standard step-up transformers, the SU-1 is a 16.3 kg industrial grade component designed to provide the absolute lowest noise floor and highest dynamic range possible for low-output MC cartridges.
The massive weight is not for show; the transformers are encapsulated in a proprietary damping compound to eliminate mechanical resonance. This 'inert' chassis ensures that the micro-signals of the cartridge are never modulated by external vibration.
The SU-1 utilizes a dual-mono, multi-stage copper Faraday shield, designed specifically to eliminate RFI/EMI in high-gain environments.
It is estimated that fewer than 20 units were ever produced.
Technical Verification (External Bench Analysis):
To ensure the integrity of the original nickel-lamination transformers, this unit has been verified via external DCR testing:
Condition & Provenance:
This is an unnumbered early-production specimen in original, unopened factory condition. It has been stored in a climate-controlled environment and features a pristine faceplate.
Key Data:
Logistics:
Located in Ljubljana, Slovenia. Professional double-boxed shipping or local pickup required due to weight and rarity.
IMPORTANT NOTE ON ACCESSORIES:
This listing is for the Expressive Technologies SU-1 Step-Up Transformer ONLY. The proprietary Expressive Technologies IC-1 Interconnect cables are NOT included in this sale. The unit features standard high-quality RCA terminations, allowing for compatibility with your reference interconnects of choice.
For serious buyers:
I can also provide direct livestream via discord, youtube or twitch for a due dilligence inspection before commiting. Bill of sale availlable. Price is negotiable within reason.
MATCHED COMPONENTS:
This SU-1 was the primary interface for a Kuzma CAR-40 Moving Coil cartridge. The 28dB (25:1) step-up ratio is specifically engineered to provide the high-gain 'grip' and dynamic headroom required for the CAR-40's ultra-low output, resulting in an exceptionally low noise floor and massive soundstage.
Curated by Franc Kuzma, paired alongside a flagship Conrad-Johnson Premier 7B & 8A stack (also currently listed).
Inquiries for the complete Kuzma-Legacy analog front-end are welcome. Professional combined palletized shipping available.
Offered is the legendary Expressive Technologies SU-1.
Unlike standard step-up transformers, the SU-1 is a 16.3 kg industrial grade component designed to provide the absolute lowest noise floor and highest dynamic range possible for low-output MC cartridges.
The massive weight is not for show; the transformers are encapsulated in a proprietary damping compound to eliminate mechanical resonance. This 'inert' chassis ensures that the micro-signals of the cartridge are never modulated by external vibration.
The SU-1 utilizes a dual-mono, multi-stage copper Faraday shield, designed specifically to eliminate RFI/EMI in high-gain environments.
It is estimated that fewer than 20 units were ever produced.
Technical Verification (External Bench Analysis):
To ensure the integrity of the original nickel-lamination transformers, this unit has been verified via external DCR testing:
- Primary (Input): 0.2 Ω / 0.2 Ω (100% Symmetrical)
- Secondary (Output): 230 Ω / 227 Ω (Matched within 1.3%)
- Galvanic Isolation: Infinite Ω (Verified 100% stage separation)
- Shielding: 0.2 Ω continuity between Ground Lug and Faraday Cages.
Condition & Provenance:
This is an unnumbered early-production specimen in original, unopened factory condition. It has been stored in a climate-controlled environment and features a pristine faceplate.
Key Data:
- Gain: 28 dB (25:1 Turns Ratio)
- Weight: 16.3 kg (36 lbs)
- Optimized for: Ultra-low output MC cartridges (Ortofon MC Anna, Koetsu, Lyra, Kuzma CAR-40,50,60 series, etc.)
Logistics:
Located in Ljubljana, Slovenia. Professional double-boxed shipping or local pickup required due to weight and rarity.
IMPORTANT NOTE ON ACCESSORIES:
This listing is for the Expressive Technologies SU-1 Step-Up Transformer ONLY. The proprietary Expressive Technologies IC-1 Interconnect cables are NOT included in this sale. The unit features standard high-quality RCA terminations, allowing for compatibility with your reference interconnects of choice.
For serious buyers:
I can also provide direct livestream via discord, youtube or twitch for a due dilligence inspection before commiting. Bill of sale availlable. Price is negotiable within reason.
MATCHED COMPONENTS:
This SU-1 was the primary interface for a Kuzma CAR-40 Moving Coil cartridge. The 28dB (25:1) step-up ratio is specifically engineered to provide the high-gain 'grip' and dynamic headroom required for the CAR-40's ultra-low output, resulting in an exceptionally low noise floor and massive soundstage.
Curated by Franc Kuzma, paired alongside a flagship Conrad-Johnson Premier 7B & 8A stack (also currently listed).
Inquiries for the complete Kuzma-Legacy analog front-end are welcome. Professional combined palletized shipping available.
Verkäufer:
- Versand aus Slowenien (1000)
- Käufer zahlt Versand
- Versand weltweit
Zahlungsmethoden
- Barzahlung bei Abholung
- Überweisung
Inserats-ID
6250430644
Angebotszeitraum- Start:
- 23.02.2026 - 22:42
- Ende:
- 24.04.2026 - 22:42
10 mal in 2 Stunde(n)
