Other Electro-Harmonix tubesKT88 Tube Types
Additional Information and Downloads
Download Adobe Acrobat PDF reader
Warranty Information and Return PolicyWarranty Period: 3 months
All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.
Ratings & Reviews
Vintage sunn1000s with kt88s
Used them in my sunn 1000s guitar amp took a little bit more time to break in the tubes. Lasted for over 7 years until they went on Me? Using a sunn cabinet with 6 12 inch Pyle driver vintage 1980s speakers. 155 watt max. total 930watts. Amp on 10 with tube screamer hit 120db!! Massive power will buy again
beautiful sound the depth is beyond description
I bought 2 matched pairs from tonal to replace stock el84's - after bias & break in I absolutely have no fancy words to describe the full depth of music, amazing & rich the sound, I am beyond impressed for the price - used in GA 348 manual bias amp with Infinity RSIIIA speakers, dual velodyne subs one per channel - room +/- 500sqft - bias currently set at 0.5v - subs on 50hz & 40% vol I could go lower but like to shake.