RAAL VM-1a

RAAL VM-1a

RAAL VM-1a

VariMode Tube amplifier for SR & CA ribbon type headphones.

RAAL requisite
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€7,200.00
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RAAL-requisite VM-1A

Flagship direct-drive tube amplifier for RAAL ribbon headphones

Experience unequalled tone, texture, and detail in your music with the RAAL VM-1A Ribbon Headphone Amp.

  • Tube-rolling flexibility to fine-tune sound to your preferences
  • Three selectable operating modes: Ultra-Linear, Triode, and Pentode
  • Paired with the SR-1a: astonishing detail with natural, organic tone and a cohesive soundstage
  • 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 RAAL-requisite ribbon headphones. It includes selectable SR-1a open-baffle compensation and CA-1a non-compensation for both outputs, plus a 24-step precision attenuator for accurate channel matching and repeatable level setting.

On top of that, it offers transformer-balanced left/right inputs and outputs for simultaneous dual headphone operation. Toroidal output transformers and the toroidal power transformer are magnetically shielded and epoxy cased. Lastly, the amp lets you select between 115 V and 230 V—ideal for use in different regions of the world.

Specifications

Mode: Ultra-Linear Power Output: 15 W
Bandwidth / Frequency Response: 20 Hz – 70 kHz, -3 dB
Mode: Triode Power Output: 10 W
Bandwidth / Frequency Response: 10 Hz – 70 kHz, -3 dB
Mode: Pentode Power Output: 20 W
Bandwidth / Frequency Response: 30 Hz – 50 kHz, -3 dB
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 2 V
Distortion < 1%
S/N Ratio 72 dB
Weight ~29 lb (≈ 13.2 kg)