Headphone Amplifiers

B-Stock with full warranty

• Inputs: 3.5 mm stereo jack and RCA LR
• Outputs: 3.5 mm stereo jack per channel
• Adjustable volume per channel by potentiometers

• Audiophile Grade A/B Amplifier
• 2 x 30W at 8 ohms or 2 x 60W at 4 ohms
• Integrated DAC
• Three Analog Inputs

B-Stock with full warranty

• For record players with moving magnetic (MM) and moving coil (MC) pickup systems
• RIAA equalization (built according to Doug Self)
• Max. gain: 51 dB (MM), 70 dB (MC)

• For SP1000 A&ultima Series Music Player
• For Full-Size, High-Impedance Headphones
• Increases Power & Performance of SP1000
• Modular Design Requires No Cables

• For SP1000 A&ultima Series Music Player
• For Full-Size, High-Impedance Headphones
• Increases Power & Performance of SP1000
• Modular Design Requires No Cables
• Supports High- or Low-Gain Output Level
• Unbalanced 3.5mm TRS Headphone Output
• Balanced 2.5mm TRRS Headphone Output
• Internal Rechargeable 9-Hour Battery
• USB Type-C Charging Port
• Aluminum & Stainless-Steel Construction

• 4 High-Quality Inputs
• AES/EBU on XLR
• CAT5 Port for SoundGrid Network
• RCA for Consumer Audiophile

• For SP1000 A&ultima Series Music Player
• For Full-Size, High-Impedance Headphones
• Increases Power & Performance of SP1000
• Modular Design Requires No Cables
• Supports High- or Low-Gain Output Level
• Unbalanced 3.5mm TRS Headphone Output
• Balanced 2.5mm TRRS Headphone Output
• Internal Rechargeable 9-Hour Battery
• USB Type-C Charging Port
• Aluminum & Stainless-Steel Construction

B-Stock with full warranty

• With balanced headphone outputs
• Balanced and unbalanced inputs / outputs with XLR and RCA (gold-plated contacts)
• Line outputs configurable fixed / variable: pre / post fader

• For Speakers and Headphone Listening
• Class-D Amplifier
• Volume, Bass & Knob Controls
• 3.5mm & RCA Inputs

• Muting Capability
• Panel or Wall Mountable
• Balanced / Unbalanced Inputs
• Sensitivity Control Switch

• 1/4" & 1/8" Headphone Outputs
• Active Volume Control
• Input / Through Connections

• Connects Wired Headphones via Bluetooth
• Integrated Bluetooth 5.0 Receiver
• High-Quality AAC, aptX & aptX LL Codecs
• 3.5mm Headphone Output

• Panel or Wall Mountable
• Balanced / Unbalanced Inputs
• Sensitivity Control Switch
• Mono and Stereo Modes

B-Stock with full warranty

• With balanced headphone outputs
• 4 Discrete power amplifiers with V200 technology
• 8 Transistors per channel

Preamp / Monitor Controller

• Suitable for all headphones with impedances from 10 ohms
• Balanced and unbalanced analogue inputs and outputs (XLR, RCA)
• Laterality: Extreme fine balance control

• 25mW Power into Headphones
• Standard Mini Headphone Jack Output
• Connect to RDL Twisted Pair Sender RJ45
• Powered by RDL Twisted Pair Sender RJ45

• Single-Driver Electrostatic Earphones
• Custom-Design Earphone Cable
• Formable Wire and Over-Ear Placement
• Up to 37 dB of Noise Isolation