If you happen to learn my CAF 2023 Standout Merchandise put up, now you realize I wasn’t kidding.
Early Monday morning post-CAF 2023, I met David Cope, proprietor at Stonington, CT-based Outdated Forge Audio, with an open tailgate and stomach stuffed with espresso. In it, the automotive, went the Thöress EHT Built-in Amplifier, the very one I and possibly you noticed within the Outdated Forge Audio room.
The EHT is a hybrid design, mixing tubes and MOSFETs (in- and out-put) for 20 Watts of energy into 6 Ohms.
From Thöress:
The amplifier relies on a novel minimalist single-ended zero-feedback vacuum tube MOSFET hybrid topology which we name EHT Topology (E.intakt-H.ybrid-T.riode, Single-Ended Hybrid Triode). The EHT topology consists of a single-ended triode acquire stage (6J5GT,12J5GT or 7A4 vacuum tube) adopted by a unity acquire MOSFET output stage additionally operated in single-ended Class-A mode with excessive idle present.
The again panel tells a easy story with 4 single-ended RCA inputs, a single set of speaker binding posts, IEC inlet, and energy change.
From the left now we have the ability On (A) / OFF (Out of) management, Quantity, Enter selector, and a 3-way toggle change for the Bass Increase that provides 3 settings the place the middle place is “Impartial” whereas B1 and B2 provide completely different bass enhance kinds. We will see/hear what these kinds are within the evaluate correct.
I’m wanting ahead to turning that energy knob to A.
Thöress EHT Built-in Amplifier
Value: $10,995
Firm Web site: Thöress
North American Importer Web site: phonographe.ca
Characteristic Overview
- Vacuum Tube MOSFET Hybrid Built-in Amplifier with 20 watts of output energy per channel (right into a 6 ohm load).
- Driving functionality for crucial loudspeaker hundreds because of very low output impedance (excessive damping issue).
- Final sonic excellence on par with no-compromise all-tube single-ended triode amplifiers, but with out involving unique and dear energy tubes.
- Distinctive minimalist zero-feedback EHT schematic: single-ended triode acquire stage (6J5GT tube) driving a unity-gain MOSFET output buffer operated in single-ended (class-A) mode with excessive idle present.
- Complete avoidance of safety circuitry.
- 4 line stage inputs (2×4 RCA jacks) with equal acquire manually selectable by way of rotary dial.
- Distant quantity management by way of high-grade motor pushed twin potentiometer with wonderful channel steadiness and low angle sensitivity (for conveniently effective quantity adjustment).
- Excessive grade electrolytic capacitors made in Germany within the energy provide.
- Low noise low leakage dual-coil C-Core mains transformer made in-house for 230Vac (115Vac by way of jumper setting), 100Vac (Japan), 220Vac (South-Korea, China, Thailand, Indonesia) or 245Vac (Australia).
- Full hand development, point-to-point wiring all through.
- Non-magnetic aluminum casework, anodized printing on entrance and rear panel, powder-coated lids.
- Dimensions 434x450x184 mm, 184=20 (toes)+134+30 (tubes over case), 450=434+16 (speaker binding posts).
- Dimensions of the transport crate: 650 x 650 x 350 mm, weight 18Kg.
