High-end balanced electronic tube preamplifier
*Cascaded SRPP circuit
*Ultra-low distortion
*True balanced output
Product parameters
Product Name: Tube Balanced Pre-amplifier
Electron tubes: Noble ECC82 × 3, 6Z4J stage × 1
Input impedance: 100KΩ
Output impedance: 33KΩ
Frequency response: 25Hz ~ 45KHz
Signal-to-noise ratio: -100dB
Magnification: 5 times
Operating voltage: AC ~220V
Dimensions: 336×329×69 mm (width × depth × height)
Weight: approximately 4.4KG
Product Introduction
This product integrates over a decade of design and manufacturing experience, and has been meticulously refined and adjusted.
At its core, it employs an SRPP (Series Regulated Push-Pull) cascaded circuit composed of ECC82 tubes (which can be directly substituted with 12AU7). Hetianmao and JADIS are outstanding representatives of SRPP amplifier circuits, renowned for their prominent vocal reproduction and excellent midrange performance.
The 6Z4 tube rectification, combined with other high-quality components and meticulous tuning, can create a rich musical flavor, full timbre, and strongly textured vocals, offering high musical expressiveness and fidelity.
The appearance is simple and atmospheric, steady and introverted, using all aluminum alloy brushed panels and all aluminum feel knobs. In addition to the main volume, it also comes with a set of RCA audio input and XLR balanced input switching. The interfaces have RCA output and balanced output, fully loaded Matching of player's equipment.
The cascaded SRPP circuit can fully leverage the advantages of vacuum tubes, such as a wide dynamic range, good linearity, low distortion, and abundant even-order harmonics. Additionally, it eliminates the need for an output transformer, simplifies the circuit structure, reduces costs, and simultaneously achieves superior sound quality performance.
The SRPP circuit maintains excellent linear amplification characteristics even with large signal inputs, making it less prone to clipping distortion and other issues. With extremely low distortion, reaching the 0.01 distortion level, it enhances the richness of audio details and dynamic expression.
The even-order harmonic distortion generated during the operation of vacuum tubes does not degrade the listening experience; on the contrary, it enhances the aesthetic quality of the sound, making it more mellow and allowing certain details to stand out more prominently, as if the details have been optimized to some extent. Especially when playing vocal music, it imparts a rich emotional flavor. This way of processing sound is commonly known as the "tube sound." It not only adds charm when playing vocal music but also imparts a unique style when playing some light music pieces, such as violin, saxophone, and jazz compositions recorded indoors
The amplification circuit utilizes three ECC82 electronic tubes. Compared to the 12AU7, these tubes offer higher vacuum levels, slightly lower noise, and deliver delicate high frequencies, strong resolution, and a pronounced sense of airiness.
When used under higher screen voltages, they produce a warm, sweet timbre full of charm.
The high-voltage section employs 6Z4 tube rectification, paired with high-grade chemical and other high-voltage capacitors. All resistors are military-grade, and the tube sockets feature gold-plated pins.
The even-order harmonic distortion generated during the operation of vacuum tubes does not degrade the listening experience; on the contrary, it enhances the aesthetic quality of the sound, making it more mellow and allowing certain details to stand out more prominently, as if the details have been optimized to some extent. Especially when playing vocal music, it imparts a rich emotional flavor. This way of processing sound is commonly known as the "tube sound." It not only adds charm when playing vocal music but also imparts a unique style when playing some light music pieces, such as violin, saxophone, and jazz compositions recorded indoors
The amplification circuit utilizes three ECC82 electronic tubes. Compared to the 12AU7, these tubes offer higher vacuum levels, slightly lower noise, and deliver delicate high frequencies, strong resolution, and a pronounced sense of airiness.
