Valves
Kits
Speakers
Pedals
Amp Parts
Cabinets
AccessoriesProducts > Cryo Valves
Watford Valves was the first Company in the World to offer a cryogenically treated valve brand range showing huge commitment to the proven scientific cryogenic process.
The Harma Diamond deep cryogenically treated valve range offers the musician and audiophile valves which are not only specially selected and tested, but are cryogenically treated for the ultimate performance. We also offer a full range of cryogenically treated valves made by the great factories of the past, such as Mullard, Telefunken, Philips as well as modern brands such as Groove Tubes, Tube Amp Doctor, JJ Electronic (formally Tesla), Electro Harmonix and Sovtek. So whatever is your preferred make Watford Valves will have a cryogenically treated version in stock.
What are the benefits of using cryogenically treated Valves?
The cryogenic process offers permanent change to the metals microstructure. The reduction in electronic noise improves the valves noise floor leading to lower microphonics. Until now clear note definition, musical complexity and rich harmonic content was only attainable by using rare and expensive new old stock classics.
Many guitarists have found the dramatic effect cryogenic treatment has on the way the valve performs not only in clean applications but also when overdriven. The cryogenic process removes the harshness from the valves tone and imaging has more focus and bite. It has a warmer sound which is pleasing to listen to, providing a clear and musical distortion. In short, many musicians, engineers and audiophiles have found that by using cryogenically treated valves it is a proven way of obtaining NOS sound quality with a great difference, an affordable price!
We offer a full range of cryogenically treated valves Harma Diamond Cryogenically treated valve range- High quality at an affordable price.
Nick Guppy, amp reviewer for the UK GUITARIST magazine wrote
“Compared to NOS Telefunken, the Harma Cryo ECC83 offered an improvement in gain and high frequency response that noticeably enhanced this amps singing lead voice and lush clean sounds”.
- NameBrandCommentStockPrice PhotoOrder
- 5881-HARMA MESA BOOGIE 400+ CRYO OUTPUT SETHarma Cryo Special Offer 20% Discount
Here is a special Cryo set for all you owners of the Mesa Boogie 400 plus bass head ...In stock£432.00
£345.60
Buy Now
FREE UK
Mainland Delivery - KT88-SVETLANA WINGED C CRYO MATCHED PAIRSvetlana Winged C Cryo One Matched Pair Only
Original Winged C Svetlana
These are the ORIGINAL Svetlana KT88 as made by JSC ...In stock£175.00
Buy Now - ECC83/ ECC83S-JJ TESLA CRYO HIGH GAIN 7 VALVE PRE AMP KITJJ Tesla Cryo 7 Valve JJ Preamp kit
High Gain Cryo
This 7 valve set of specially selected high gain Cryo treated ...In stock£174.00
Buy Now - ECC83/ ECC83S-JJ TESLA CRYO STAN GAIN 7 VALVE PRE AMP KITJJ Tesla Cryo 7 Valve JJ Preamp kit
Standard Gain Cryo
This 7 valve set of specially selected standard gain Cryo ...In stock£156.00Buy Now - ECC83/ ECC83S-JJ TESLA CRYO HIGH GAIN 6 VALVE PRE AMP KITJJ Tesla Cryo 6 Valve JJ Preamp kit
High Gain Cryo
This 6 valve set of specially selected high gain Cryo treated ...In stock£149.00Buy Now - ECC83/ ECC83S-JJ TESLA CRYO STAN GAIN 6 VALVE PRE AMP KITJJ Tesla Cryo 6 Valve JJ Preamp kit
Standard Gain Cryo
This 6 valve set of specially selected standard gain Cryo ...In stock£134.00Buy Now - ECC83/ ECC83S-JJ TESLA CRYO HIGH GAIN 5 VALVE PRE AMP KITJJ Tesla Cryo 5 Valve JJ Preamp kit
High Gain Cryo
This 5 valve set of specially selected high gain Cryo treated ...In stock£124.00Buy Now - ECC83/ ECC83S-JJ TESLA CRYO STAN GAIN 5 VALVE PRE AMP KITJJ Tesla Cryo 5 Valve JJ Preamp kit
Standard Gain Cryo
This 5 valve set of specially selected standard gain Cryo ...In stock£112.00Buy Now - ECC83/ ECC83S-JJ TESLA CRYO HIGH GAIN 4 VALVE PRE AMP KITJJ Tesla Cryo 4 Valve JJ Preamp kit
High Gain Cryo
This 4 valve set of specially selected high gain Cryo treated ...In stock£99.00Buy Now - 7199-PHILIPS CRYOPhilips ECG JAN CRYOVery Limited Stock
These are the real deal 7199 Philips made in the USA for the American military and have been ...In stock£95.00
Buy Now - 8254/ EC1000-MULLARD CRYOMullard Cryo Special Cryo Treated Version
Very special Cryo treated Mullard 8254 EC1000 for Neumann microphones. We have Cryo ...In stock£95.00
Buy Now - ECC83/ ECC83S-JJ TESLA CRYO STAN GAIN 4 VALVE PRE AMP KITJJ Tesla Cryo 4 Valve JJ Preamp kit
Standard Gain Cryo
This 4 valve set of specially selected standard gain Cryo ...In stock£90.00Buy Now - 6L6GC-SVETLANA WINGED C MESA SELECT AKA MESA 6L6GC STR 454 CRYOSvetlana Winged C Cryo Special Cryo Treated Version
The Mesa 6L6GC STR 454 is the Original Svetlana winged C 6L6GC which Mesa sourced ...In stock£75.00
Buy Now - ECC83/ ECC83S-JJ TESLA CRYO HIGH GAIN 3 VALVE PRE AMP KITJJ Tesla Cryo 3 Valve JJ Preamp kit
High Gain Cryo
This 3 valve set of specially selected high gain Cryo treated ...In stock£74.00Buy Now - 6L6GC-SVETLANA WINGED C CRYOSvetlana Winged C Cryo Last Stock of ths Great Sounding 6L6GC
The Original Svetlana Winged C 6L6GC that was designed based on the ...In stock£70.00
Buy Now - ECC83/ ECC83S-JJ TESLA CRYO STAN GAIN 3 VALVE PRE AMP KITJJ Tesla Cryo 3 Valve JJ Preamp kit
Standard Gain Cryo
This 3 valve set of specially selected standard gain Cryo ...In stock£68.00Buy Now - 6V6GT-PHILIPS CRYOPhilips ECG JAN CRYOBlack Plate Cryo Version
Special Cryo treated version of the original American Military JAN 6V6GT which are ...In stock£55.00
Buy Now - 6V6GT-PHILIPS CRYO SINGLEPhilips ECG JAN CRYOBlack Plate Cryo Version
Single Valve
Special Cryo treated version of the original American Military JAN ...In stock£55.00Buy Now - KT66/ CV1075-REC RELIC CRYORelic Electric Company CryoThe KT66 Relic Cryo is a premium high quality audio grade KT66 that is based on the famous GEC design. This valve has a ...In stock£50.00
Buy Now - GZ34/ 5AR4-HARMA RETRO CRYOHarma Cryo This is a special cryogenically treated version that offers the highest performance.The Harma GZ34 Retro Cryo design is ...In stock£48.00
Buy Now - 6CG7/ 6FQ7-GENERAL ELECTRIC CRYO MATCHED PAIRGeneral Electric Cryo Special Matched Pair
Matched triode sections for high end Audio & Headphone amplifiers
Very Limited ...In stock£48.00
Buy Now - ECC83/ 12AX7M-GROOVE TUBES SUPER PREMIUM CRYO BALANCEDGroove Tubes CryoSpecial Balanced item
This is a specially cryogenically treated version with balanced output from each triode ...In stock£40.00
Buy Now - 6V6GTS-JJ TESLA CRYOJJ Tesla Cryo The JJ Tesla 6V6GTS Cryo is a specially cryo treated version and is the best sounding version of JJ 6V6GTS valve.The ...In stock£40.00
Buy Now - 6L6GC-GROOVE TUBES GE RE ISSUE SUPER PREMIUM CRYOGroove Tubes CryoThese is no doubt that after having the benefit of comparing virtually every major 6L6GC that has been made that the GT ...In stock£40.00
Buy Now - EL34/ EL34M-GROOVE TUBES SUPER PREMIUM CRYOGroove Tubes CryoGroove Tubes Super Premium Cryo valves are specially burst tested by us. We take selected GT items and in addition to ...In stock£40.00
Buy Now
