Harma Valves / 6N1P VI-HARMA

6N1P-VI-HARMA 6N1P-VI-HARMA Click on image(s) above to view larger
£22.00
£14.00

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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.
Special Offer very low stock


The Harma 6N1P VI is a special long life, low noise selected version of the 6N1P. The valve was designed for military application and had a life expectancy of 5000 hours.

The VI version was factory balanced with each triode section selected to very tight military parameters after a long burn in process.

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.If you want the best performance then we have this in a Cryo version.
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.

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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