Tung-Sol 7581A Power Vacuum Tube (Matched)
Need matched power tubes? Don't worry! Price includes matching in any quantity you need for no extra charge. Need a matched pair? Just order "2" tubes. For a matched quad order "4" tubes. Matched sextets and octets are available as well.You need more clean headroom? The new Tung-Sol 7581A vacuum tube is the answer. This tube is an upgraded 6L6GC tube but willprovide more headroom than typical 6L6GC tubes. The 7581-A power tube has a plate dissipation rating of 35W, as opposed to the 6L6GC and 7581 rating of 30W. The 7581A tube can be used in any 6L6 based tube circuit.
From our review: "Balanced, is the first word that comes to mind when I think about the sound. Other descriptive words would include detailed, rich and responsive. The bass response, midrange and treble were very balanced and the EQ could essentially be left flat.Very rich sounding with enough shimmer and harmonics to put a smile on my face."
A fantastic choice for your Fender tube amp, Ampeg amps normally using 7027A tubes, Music Man amps, or any other 6L6 based tube amp where you need to increase headroom.
Other Tung-Sol tubes 
6L6 Tube TypesAdditional Information and Downloads
Reviews:
6L6 Tube Review
Tube Matching Information:
Power Tube Matching FAQ
Perfect Pair System
Downloads:
Tung-Sol 7581A Datasheet (PDF)
Download Adobe Acrobat PDF reader
Warranty Information and Return Policy
Warranty Period: 3 monthsAll 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
35 reviews
Tung-Sol 7581A (35W rated) | Brutal chunk for lead channel and powerful in a good way!
by Metalcore -
The tubestore customer service team recommended these tubes TS-7581A for a Peavey 5150 and they sound very powerful. Nice cleans with chime. On a lead channel with boost the tubes sound brutal in a good way, totally a favorite for any fan of modern metal. They are very chunky. They have a somewhat scooped EQ accentuating lows and highs so if you like that tone that many metal masters did w EQ that will get you there.
Tung-Sol 7581A (35W rated) | Sound good while they last
by Randy J
I installed a matched set in my PV Valveking 100 basement practice amp 4 months ago. I have maybe 50 hrs through them. Never driven hard. Now I'm getting loud popping noises through the speakers. I bypassed the effects loop to make sure that wasn't causing the noise. They were a nice change from the 6L6GCs that sounded a little harsh in the highs.
Tung-Sol 7581A (35W rated) | Update
by Nigel -
The other day i was biasing my Melody integrated and one tube was bad .
NINE years my friends, verified at thetubestore.
I installed another set of TS-7581A I had for backup bought Three years ago.
Absolutely recommend these awesome Valves
Tung-Sol 7581A (35W rated) | Yes
by Dwes
This TS-7581A is THE soundgoodizer tube.
Tung-Sol 7581A (35W rated) | Great tube
by Joe F
I bought these TS-7581A after reading another customers review. He is using them in Quicksilver Mid Monos. These tubes are flat out unbelievable in the Mid Monos. Wall to wall sound great bass, mid range is spot on and there is more treble extension than the el34s I’ve tried.