RAAL-requisite VM-1a | Variable Mode Vacuum Tube Ribbon Headphone Amplifier-Bloom Audio
RAAL-requisite VM-1a | Variable Mode Vacuum Tube Ribbon Headphone Amplifier-Bloom Audio
RAAL-requisite VM-1a | Variable Mode Vacuum Tube Ribbon Headphone Amplifier-Bloom Audio
RAAL-requisite VM-1a | Variable Mode Vacuum Tube Ribbon Headphone Amplifier-Bloom Audio
RAAL-requisite VM-1a | Variable Mode Vacuum Tube Ribbon Headphone Amplifier-Bloom Audio

RAAL-requisite VM-1a | Variable Mode Vacuum Tube Ribbon Headphone Amplifier

Regular price$6,900.00
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Experience Unequalled Tone, Texture, and Detail in Your Music with the RAAL VM-1a Ribbon Headphone Amp

  • Tube-Rolling flexibility to enhance music to your preferences
  • (x3) Variable operation modes: Ultra-Linear, Triode, and Pentode
  • Paired with the SR-1a headphone, provides crazy detail with natural and organic tone and cohesive sound-stage
  • Extremely well-built for longevity and easily serviceable

From RAAL-requisite

This is RAAL's new flagship amplifier for ribbon headphones. Featuring user selectable Triode, Pentode and Ultra-Linear operating modes. This top of the line amp delivers uncompromising performance with RAAL’s SR-1a headphones. Truly a joy to experience.

This direct drive vacuum tube amplifier is compatible with all of RAAL-requisite’s ribbon headphones. It has selectable SR-1a open-baffle compensation and CA-1a non-compensation for both outputs. It also has a 24-step precision attenuator which is ideal for precise channel matching. On top of that, it has transformer balanced inputs (left/right) and outputs for simultaneous dual headphone operation. Toroidal output transformers and the toroidal power transformer are all magnetically shielded and epoxy cased. Lastly, the amp allows you to select between 115V and 230V voltages, great for those who want to use the amp in different regions of the world.

Specifications

Ultra-Linear

  • Power Output: 15W
  • Bandwidth Frequency Response: 20Hz - 70kHz, -3dB

Triode

  • Power Output: 10W
  • Bandwidth Frequency Response: 10Hz - 70kHz, -3dB

Pentode

  • Power Output: 20W
  • Bandwidth Frequency Response: 30Hz - 50kHz, -3dB

General

  • Input Tube: (x1) Tung-sol GTB 6SN7 Dual-Triode
  • Splitter/Driver Tubes: (x2) Apex Matched Mullard EL34
  • Output Power Tubes: (x4) Apex Matched Mullard EL34 Quartet
  • Input Impedance: 50K Ω
  • Input Sensitivity: 2V
  • Distortion: < 1%
  • S/NR: 72dB
  • Weight: ~29lb

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