Kronos AV

Taga Harmony THDA-500T Vacuum Tube Headphone DAC/Amplifier
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  • £199.00
  • Regular price £249.00

This midi Class A vacuum tube headphone amplifier provides a clear, rich and powerful sound.

The true high-end sound has never been so affordable before!
The THDA-500T is a hybrid vacuum tube/solid state headphone amplifier which utilizes discrete MOSFET outputs and a 12AX7 vacuum tube.

Pure Class A, single ended design with no negative feedback offers the best sound performance and powerful sound.

The THDA-500T uses only fully discrete circuits with audiophile-grade Wimacoupling and Rubycon power supply capacitors.  

Thanks to a 3.5V stereo preamp output you can connect your THDA-500T directly to a power amplifier or powered speakers.

A precisely made, extremely quiet and stable, linear internal power supply supports ultra-high-end sound performance.

The removable IEC power cable gives you an option to upgrade your system with a premium audiophile power cable in any time.

You can connect it directly to your computer through a USB input and thanks to the built-in high-resolution premium USB-DAC 24bit/192kHz (Cirrus Logic CS4344) you are able to change your digital music to a thrilling music experience.

Stunning sound embedded in a very rigid, non-resonant and luxurious steel-aluminum casing (10mm front and 6mm rear aluminum panels).

Power Output:

2 x 500mW @ 100 Ohm load,

Pure Class A  single ended design with no negative feedback

Discrete MOSFET output

Linear internal power supply

DAC Resolution:

Asynchronous 24bit / 192kHz

True high-speed audio processor CM6631A
DAC Cirrus Logic CS4344

Vacuum Tubes: 1 x 12AX7

Less or equal 0.1% @ 100 Ohm

(1kHz, 300mW)

Signal/Noise ratio:


Input Sensitivity: 750mV

RCA stereo AUX, USB (for computer)


RCA Pre-Out

Headphone Impedance: 30 to 300 Ohm (1/4”)
Included Accessories:

USB cable

AC Power, Power Consumption: 220V-240V 50/60Hz, 10W
Dimensions (H x W x D): 12 x 17 x 23.5 cm
Weight (net): 2.5 kg / pc.
Finishes: BLACK
We have several deomonstation areas in both of our branches. Please give us a call on 03435236169 or email to enquire about hearing products at your local branch. 

Please always contact us before to make sure the product(s) are available

Here at Kronos AV, we have vast experience with e-commerce sales. Making sure that your parcel arrives undamaged is a huge priority for us. That’s why at Kronos AV, we only use premium couriers for all our orders. All our parcels are shipped with DPD or Royal Mail and are always sent Signed For to make sure it gets to the right person. 

DPD gives you an hourly window for delivery so you can make sure you are home, and you can of course track your parcel all the way from despatch to your front door, offering you peace of mind. 

If for any reason your parcel does arrived damaged, please get in touch, and we will be happy to get everything resolved for you. We are always on hand to help!


Delivery is FREE on all orders over £50. In order to offer FREE delivery to UK customers, we use several premium couriers to ensure your delivery arrives safe.

Most large orders (over 2kg) ship using DPD or DHL courier and smaller orders (under 2kg) by Royal Mail signed for services.

The most appropriate courier will be chosen for the items ordered to ensure the quickest possible delivery.

We can offer very generous trade in offers across the majority of our product range. 

Why not ask and see how much you HiFi is worth!

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If you have any question, please feel free to call us on 03435236169 or email