Black Ice Audio FX Tube Headphone Amplifier



The FX headphone amp adds the smooth natural sound to headphone listening.

It has air, openness and richness even at low playing volumes. Adjustable bass and loudness switches add flexibility to get the sound you want.

  • Hybrid Tube Amplifier
  • Two 12AX7 Preamp Stage
  • Bass and Loudness Features
  • 1/4″ Output Jack
  • 3.5mm and RCA Input Jack
  • Available in Black Only

One year warranty and even 1000 hours on the tubes.

Out of stock

Two 12AX7A vacuum tubes driving a pair of headphones, what could be better. Air, openness and richness even at low playing volumes. Adjustable bass and loudness switches add flexibility to the sound you want.

Try out for yourself how vacuum tubes can bring a new natural sound to your music lifestyle.

Construction Details & Features

  • Fully Integrated Vacuum Tube Headphone Amplifier: Input 450mV driving 80 mW.
  • Components: ALPS audio potentiometer, two sets gold plated RCA input jacks, and front panel minijack input.
  • Bass and Treble boost controls 
  • Compact size


Rated Output Power: 80 mW at a load of 32 ohms
Frequency Response: (at 1 watt into 32 ohms) 5Hz to 100KHz + 1dB
Bandwidth: 20Hz to 100kHz + 1dB
Distortion THD: Less than 0.1% at 80mW output, 32 ohm load
Input Impedance: 32 ohms
Input Sensitivity: 450mV
Output Impedance: 32 to 300 ohms
SNR: 85dB
Tube Complement: 2 pcs. 12AX7
Power Requirements: 110V-120 VAC 60Hz or 220-240 VAC 50Hz
Dimensions: 7 inches wide by 6 inches deep by 4 inches
Weight: 8 pounds (3.65 Kg) net, approximately 11 pounds (5 Kg) packaged
Warranty: 12 months limited parts and labor. Six months or 1000 hours whichever comes first.
Fuse: 110 – 120 VAC, 1 Amp slo Blo; 200 – 240 VAC, .5 Amp slo Blo, Size 5mm X 20mm

Black Ice Audio is the new name for Jolida.

With final assembly performed in the US and critical parts like transformers sourced from Germany, tube manufacturer Black Ice Audio, formerly Jolida, has garnered an enviable reputation for high-performance products at real-world prices.

Black Ice Audio is a collaboration of Jim Fosgate, Jerred Dunkerson, & the Black Ice Audio team who design, engineer & manufacture hifi products – Engineered for Everyone.

Our relationship with Jim Fosgate started in 2010. During this time we have gone from manufacturing his designs for other brands – to working side by side developing and manufacturing under our own brand.

The collaboration has inspired a new approach to audio engineering – circuit wizard meets innovative engineering – resulting in revolutionary advances in hifi valve technology and spatial audio circuitry.

Our common philosophy and goal is to make elite hifi audio accessible to as many people as possible by offering the highest value in the industry. So whether you are new to HiFi gear and tubes, or a seasoned audiophile who knows their circuitry and components – our products are engineered to provide an exceptional listening experience… Thus our brand statement: