Harma Valves / 6N1P-VI-HARMA

6N1P-VI-HARMA 6N1P-VI-HARMA Click on image(s) above to view larger
Select Test Options
  • Factory Tested
  • Balanced (Triodes)

All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.

Harma valves consist of a selected range of valves that are chosen after meeting stringent standards for sound quality and reliability. These valves are sourced from current production as well as some of the finest Nos valves available. Unlike our competitors no Harma valves, past or present has been made in China. Harma valves represent the finest available items of their type available.

Harma valves are tested using a range of custom designed and built test rigs which are unique to Watford valves.These unique tests are not offered by any other valve supplier in the world.

All Harma pre amp valves undergo the drive rating system; the valve undergoes a series of through tests under full operational conditions. This involves a controlled burn in process to ensure perfect stability and correct ageing. A shock and vibration test, microphoney, hum, and a balance and symmetry test.

All Harma output valves undergo our own unique real world burst testing. No other supplier tests valves this way. The burst testing process involves a series of varying timed electrical signal bursts. This runs the valves under the same stress conditions that they will meet in your amplifier especially when overdriven. All out put valves are then dual matched by us on anode current and gain. This will ensure that you get the best selected valves available anywhere in the world.
The Harma 6N1P-VI is a special long life, low noise version of the 6N1P.
They are all selected to very tight parameters for high end audio and studio applications.

The valve has a better audio performance than standard 6N1P as it has very low distortion, lower noise and has a higher plate dissipation rating when compared to an ECC88, 6922 type. The better sonic performance, lower noise and lower distortion is due to the design of the valve. The valve has 50 % less noise than a standard 6N1P type and was factory selected to provide this.
The 6N1P-VI has a larger cathode than E88CC and 6922 types which results in longer life and more transient current capability.

Due to the valves performance many customers have used these to replace E88CC 6922 types in their equipment. When replacing a 6DJ8, ECC88, E88CC and 6922 types with a 6N1P-VI you will need to consult the manufacture to ensure your equipment can take the upgrade.

The differences is the 6N1P-VI has a filament current of 0.55 Amps and ECC88, E88CC & 6922 types have a filament current of 0.36 Amps. If you amp can take this valve then it is an Audio bargain.

Sonically they are fast dynamic and richly musical. The cryo treated version further enhances this valves performance over the standard item by giving a tighter and more musical bass response. The midband has more clarity and detail especially on vocals. The top end is also more detailed and smoother providing a warm and transparent sound.

The Harma 6N1P-Vi is fully equivalent to the Chinese made 6N1 valve and offers greatly improved performance.

If you want matched items then you need to order the balanced item which as balanced triode sections. If you want a matched pair then you need to order 2

All Harma preamp valves are Dynamically Drive tested under real working condition have passed the following tests:

Gain (db) Drive Tested)
Transconductance (gm) Drive Tested
Output Drive Tested
Noise 1 (signal to noise)
Noise 2 (Aural)
Microphonics Test 1(Ambient)
Microphonic Test 2 (Shock)
Cathode Test
Grid Leakage Test



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