THÖRESS SE-300B Monoblock
Best single-ended amplifier for audiophiles with high-sensitivity loudspeakers.
Experience unparalleled musicality with the THÖRESS SE-300B Monoblock amplifier. This all-tube, single-ended Class-A amplifier harnesses the legendary 300B triode to deliver up to 10 watts of pure, dynamic sound into 4, 8, or 16 ohm loads. Its zero-feedback design and powerful driver stage, coupled with meticulous point-to-point wiring and in-house C-core output transformers, ensure exceptional clarity, warmth, and realistic spatial presentation. Designed for discerning listeners, it offers a low-noise, reliable, and emotionally engaging audio experience, perfectly complementing high-sensitivity loudspeakers.
$10581.00
Owner Satisfaction
4.8
/ 5
Category Rank
38
/ 2552
#38 in Power Amplifiers
Price vs Category Average
+28%
Above average
Output Power
104816
/ W (, , or ohm loads)
Who it's for
- Listeners seeking high-resolution transparency and nuanced micro-dynamics
- Audiophiles prioritizing vocal intimacy and acoustic instrument realism
- Collectors valuing heirloom-grade construction and artisanal engineering
Who should skip it
- Users with complex or low-sensitivity speaker systems
- Owners of standard-efficiency speakers needing high-volume output
- Budget-conscious buyers seeking accessible high-end amplification
Performance breakdown
Sonic Transparency
Zero-feedback design delivers an exceptionally pure and uncolored musical presentation.
Build Integrity
Meticulous point-to-point wiring reflects uncompromising German engineering and craftsmanship.
Spatial Imaging
Creates a wide, deep soundstage with remarkable clarity and realistic depth.
Load Versatility
Selectable impedance taps ensure optimal matching with diverse high-sensitivity speaker systems.
Noise Floor
DC-heated filaments effectively minimize hum for a silent, black background.
Dynamic Authority
Delivers surprising bass control and tactile impact despite the modest wattage.
Key Specs
Output Power
10W (4, 8, or 16 ohm loads)
Tubes
300B filamentary triode, 2x CV2382/EL822 power pentodes
Output Transformer
C-core (built in-house)
Construction
Point-to-point wiring
Type
Power Amplifier
Amplifier Class
Single-Ended Class-A
Output Impedance
Selectable 4, 8, or 16 ohm
Dimensions
150 W x 595 D x 330 H mm
Features
- Pure, uncolored sound with rich musical detail.
- Natural, tangible sound reproduction.
- Solid and controlled bass performance.
- Excellent sense of touch and tactile sound.
- Wide and deep soundstage with transparency.
- Unique EHT Topology for Class-A operation.
- Vintage laboratory aesthetic with German labeling.
- DC heated 300B filaments for minimal hum.
What customers say
Audiophiles widely regard the THÖRESS SE-300B monoblocks as a destination component, celebrated for their startling realism and emotional depth. The core praise centers on the amplifier's midrange liquidity and purity, which renders vocals and acoustic instruments with uncanny, natural timbre. Reviewers also note exceptional soundstaging and transient speed, defying typical low power expectations. Beyond the sound, the build quality is frequently highlighted; its robust aesthetic suggests immense reliability. While low power output demands high efficiency speakers, the consensus is clear: for those prioritizing sonic purity, the SE-300B delivers an unparalleled, endgame listening experience that justifies its premium position.
Know before you buy
Because this amplifier produces 10 watts of power, it is best paired with high-sensitivity loudspeakers. It is designed to excel with speakers that do not require massive current to reach their full dynamic potential.
Yes, the SE-300B is highly versatile and features selectable output taps for 4, 8, and 16 ohm loads. This ensures optimal impedance matching and power delivery for a wide variety of speaker designs.
The zero-feedback design contributes to the amplifier's natural, uncolored, and highly transparent sound. By avoiding global feedback loops, the SE-300B preserves the harmonic richness and tactile quality characteristic of the 300B triode.
THÖRESS has engineered this unit with DC-heated 300B filaments to minimize hum. This design choice ensures a quiet noise floor, allowing for the clarity and detail required for high-end listening.
The C-core transformers are custom-wound by THÖRESS to ensure the highest quality signal transfer. These components are critical to the amplifier's ability to deliver controlled bass and a wide, deep soundstage.
The SE-300B is customizable for mains voltages ranging from 100Vac to 245Vac. Please specify your local voltage requirements when ordering to ensure the unit is configured correctly for your region.
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$10581