Glass FX Tube Headphone Amplifier

Glass FX Tube Headphone Amplifier

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 how vacuum tubes can bring the a new natural to your ears.   

Rated Output Power:           100 mW at a load of 32 ohms

Frequency Response:          (at 1 watt into 8 ohms) 5Hz to 100KHz   + 1dB

Bandwidth:                            20Hz to 100kHz + 1dB

Distortion THD:                    Less than 0.1% at 100mW output, 32 ohm load


Input  Impedance:                 32 ohms

Output  Impedance:              32 to 300 ohms

Input Sensitivity:                   450mV

SNR:                                       85dB

Tube Complement:               2 pcs. 12AX7

Power Requirements:          110V-120 VAC 60Hz, 220 VAC 50Hz option

Dimensions:                          7 inches wide by 6 inches deep by 4 inches high

Weight:                                8 pounds (3.65 Kg) net, approximately 11 pounds (5 Kg) packaged                

Fuse:                                    110 – 120 VAC, 1 Amp Fast Blo; 200 – 240 VAC, 0.5 Amp Fast Blow


Construction Details and Features: 

o Fully Integrated Vacuum Tube Headphone Amplifier: Input 450mV driving 100 mW.           

o State of the Art Components: ALPS audio potentiometer, two sets gold plated RCA input jacks, and front panel minijack input.

o Bass and Treble boost controls

o Comes in Black or Silver

Warranty: 12 months limited parts and labor. Six months or 1000 hours whichever comes first.


  • AXPONA 2017 Gold Award
Client Testimonials
  • There is tight and nice lower bass that adds to the bass excitement. The mids are lush and transparent. The highs are extended without being etchy. There is nice air around the instruments. This is a warm sounding tube amp without any tube veiling.

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  • JoLida made its name with what used to be called "popular priced" tubed electronics that offered exceptional value-for-dollar.

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