Preferred Series 5AR4

11 Reviews

Availability: Usually ships within 24 hours.

USD $‎39.95
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 rectifier tube is produced for us in China by the Shuguang factory.

This 5AR4/GZ34 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 tubes5AR4 Tube Types

Warranty Information and Return Policy

Warranty Period: 6 months 

All our Preferred Series tubes are guaranteed for 6 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 6 months 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

11 reviews

Improved clarity and soundstage

by -

I don’t think it’s my imagination. The 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.


by -

I purchased a pair 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.


by -

Good. 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.

My first Preferred Series disappointment

by -

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!

Good sound, but not well constructued


Even when they sound great, they last not for long (less than 1 year), and it ended blowing my fuses away