LADDER Bach II Full Balanced R2R HiFi Pre-amplifier

Bach II — Fully Discrete R2R DAC & True Balanced Class A Line Stage

“Refined simplicity, timeless design, and musical truth.”

The Bach II redefines modern high-fidelity with a blend of discrete R2R decoding, femtosecond crystal clocking, and true balanced Class-A amplification. Inspired by classical aesthetics and infused with contemporary design, Bach II embodies a pursuit of sonic purity and elegant simplicity. Every component — from the custom toroidal transformer to the precision-matched resistor ladder — has been meticulously selected to deliver lifelike sound quality, immersive musical texture, and authentic analog warmth.

Key Features

• Discrete R2R Decoding — Precision resistor ladder DAC delivers rich tonal density and organic, analog-like timbre.
• True Balanced Fully Discrete Line Stage — Class A output with fully differential topology ensures wide dynamic headroom and ultra-low distortion.
• Femtosecond Crystal Oscillator — Ultra-low phase noise clock guarantees exceptional timing accuracy and microdetail retrieval.
• High-Precision DSD & PCM Support — Supports PCM up to 768kHz and DSD via coaxial/optical input for uncompromising resolution.
• Pure Copper Toroidal Transformer — Custom 65W copper-core transformer paired with American ERSE capacitors ensures ultra-stable, low-noise power delivery.
• Fully Balanced Circuitry — Output conversion rate is approximately twice that of standard designs, enhancing SNR and noise rejection.
• Microprocessor-Controlled Relay Attenuator — 60-step relay volume control ensures perfect channel balance and precise volume adjustment.
• Elegant Industrial Design — A classic Bach-inspired chassis refined with modern minimalist elements; available in Silver or Black.

Power & Structure

Bach II is powered by a high-capacity 65W toroidal transformer with eight independent power regulation stages, providing clean and linear current to every circuit block. The Class A amplification design ensures smooth, natural signal flow, while ON Semiconductor field-effect transistors in the differential output stage guarantee fast response, excellent linearity, and ultra-low distortion.

Product Overview

Design Philosophy

Every element of Bach II reflects the pursuit of timeless audio purity — from its elegant “Bach” design language to its minimalist signal path. Its discrete R2R ladder architecture avoids oversampling artifacts, maintaining musical authenticity. The relay-based attenuator ensures perfect left/right balance and distortion-free adjustment across all levels, while the femtosecond oscillator guarantees jitter-free timing.

Package Includes

• Bach II Main Unit
• Remote Control(select)
  
• User Manual
• Warranty Card

Note: Bach II achieves optimal performance when used in a fully balanced chain (XLR input/output). Due to its Class-A design, adequate ventilation is recommended during extended operation.