Preferred Series 5AR4 Rectifier Vacuum Tube
This Preferred Series 5AR4 (GZ34) rectifier tube is the newest addition to our premium line of high quality tubes, where we find the best of current production and sourced to our specifications.
This 5AR4/GZ34 vacuum tube is the perfect replacement for any vintage or new guitar amp. It has very little sag and will keep things tight. In hifi preamps and amplifiers it will keep the low end better detailed and defined.
The Preferred Series 5AR4 construction features:
- Grey plates
- Single halo-style getter
- The filament used is low-noise
- The bottle is made with a heavy gauge glass
- And finally the bluecolor base is a nice touch too!
The Preferred Series 5AR4 tubes carry a 6 month extended warranty.
Wholesale pricing: Is available. Contact us for pricing.
Other Preferred Series tubes
5AR4 Tube TypesWarranty Information and Return Policy
Warranty Period: 6 monthsPreferred Series tubes have a 6 month warranty from 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 180 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 6 months, or are returned improperly.
These guidelines may be updated without notice.
Ratings & Reviews
14 reviews
Preferred Series 5AR4 | My first Preferred Series disappointment
by Nic -
I am a big fan of everything I have purchased from the Tube Store but I have to admit this Preferred Series 5AR4 has been a real let down. I know tubes don't last forever, but this is my second purchase of this tube (I thought the first might have been a fluke) and neither one has lasted much past a year of casual weekend use in my Pilot 240 stereo amplifier.
Looks like I will need to find another alternative, one year of service is just not acceptable, sounds great but not for long!
Preferred Series 5AR4 | Good 5AR4
by James -
Good 5AR4 tube. Works well in my Finale f-138. Still breaking in. Sound is great. Will get better after some time. Thanks to the guys and gals at the tube store.
Preferred Series 5AR4 | VERY NICE, YES INDEED!
by Thomas -
I purchased a pair of the Preferred Series 5AR4 for my Dynaco MK3 vintage amplifiers. I was surprised by the increase in power and improved sound. I didn't expect to hear quite a difference; maybe a little, but not a lot. I was using original Mullards, but I wanted to try something different and preserve those older tubes. I have used other new manufacture 5AR4s that disappointed or failed too soon. Now, I've only been using these for about ten hours, so time will tell. But so far, so good. And they look nice, too.
Preferred Series 5AR4 | Improved clarity and soundstage
by Christian Jennings -
I don’t think it’s my imagination. The Preferred Series rectifier really does have a notable influence on the sound quality. I’m using a Bob Latino ST-120 I assembled a year or two ago. I’ve tried a few rectifiers. The gold lion didn’t last but it was such an improvement I wanted to try something other than the one it came with or the sovteks which aren’t any better. I had a vintage GE GZ34 I took out of a monoblock which was amazing but reached its end of life. This one has great detail. For example I can make out lyrics that previously I was never sure exact what they were saying. Like a song I’ve heard hundreds of times all the sudden it’s like oh - I didn’t know that’s what she was saying. It’s still early I’ve only played it for a handful of hours but the soundstage is wider and deeper than with the cheaper rectifiers. Great bass response and makes a real presence that drum or bass is right there in the room with me.
Preferred Series 5AR4 | Excellent 5AR4
by Charlie
Bought 2 Preferred Series 5AR4 at the Black Friday sale "just for the heck of it" to replace original Groove Tube in my fairly new Fender 68 PRRI SilverFace....great improvement...tone is more clear and improves the twang factor of my G&L ASAT....tone is especially improved on low E string. I didn't know a rectifier tube made this much difference or what it actually does, but I highly recommend this tube...glad I got a couple of them