Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality. JAN 5654W Tube MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable. Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination. Applicable Vacuum Tube Model: 5654W/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds. What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, two vacuum tubes. Only used to test a turntable and put back in a box. Tube amp functions like new.

Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

Includes Fosi Audio Matched 5654W Tubes (installed), stock 6J1 tubes, and 4.4mm male to dual 3-pin male XLR cable.Please note the manufacturers recommended impedance range. This amp works great with large dynamic drivers, but not so great with planars or high-sensitivity IEMs.

Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

identical unused tubes from a single sourceJAN (US Army/Navy) specifications made to tighter military and federal standards; ~6AK5 premiumFull sleeve of 5 tubes; stock boxes in excellent-to-near mint condition; may be minor shelf wearcontact us if one of these fails upon your initial use; we can possibly replace it. If you want to combine tubes for a shipping discount, this is possible if you wait for an invoice before paying for any winnings. THANK YOU for looking!

Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

Elevate your sound experience with the FX-AUDIO TUBE-01 Vacuum Tube Line Amplifier. Crafted with care, this high-quality amplifier boasts upgraded JAN 5654W tubes for superior performance. The sleek black design complements any audio setup and the compact size makes it perfect for small spaces. Made by skilled artisans in Japan, this tube amplifier is the perfect addition to any home audio system.

Mint condition, upgraded GE tubes for notably improved sound. Original tubes and power supply/cable included.

Fosi Audio Phono Box X2 Phono PreampExcellent condition inside and out and all works perfectly. It has matching GE tubes 5654W as well. I took out the Chinese tubes. Comes with 12 volt power supply. Tested and works perfectly.

Mint condition, upgraded GE tubes for notably improved sound. Original tubes and power supply/cable included.

I used this unit on my desk for a few months but it is in mint condition. I realize my price is basically the same as buying a new unit but this one comes with two sets of matched NOS upgrade tubes which will save you some cash. The stock tubes are not included, I cant remember what I did with them.