Preferred Series 5AR4 Rectifier Vacuum Tube

13 Reviews
Out of Stock
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 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 tubes5AR4 Tube Types

Warranty Information and Return Policy

Warranty Period: 6 months

Preferred 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

13 reviews

Preferred Series 5AR4 | Worthwhile Upgrade For Modwright LS 100

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It never fails to surprise me how good the LS 100 preamp sounds when it's rotated into my main hifi system. I didn't realize it can sound even better with the proper rectifier, and I've tried lots of them. The Preferred Series 5AR4 elevated just about every aspect of the LS 100's already superb sound. Strong, robust, even defined bass, full and smooth midrange, nice depth and width to the soundstage and spatial placement of instruments. I've had good luck with other Preferred Series tubes over the years in terms of reliability - let's hope this one gives good service life too.

Preferred Series 5AR4 | Quiet enough for headphones!

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This is a solid tube so far. I have some great NOS GZ34's, but with those becoming rare and expensive, it makes sense to find something from the current production lineup that will do the job. I purchased one of these Preferred Series 5AR4 for an Ampsandsound Bigger Ben amp that I primarily use for Headphones. I was using a JJ GZ34 since that's what came with the amp. It did the job and tone was great, but after just a few short months of use(it was not in use exclusively) it has become noisy. This is quite noticeable in headphones, particularly in sensitive 300 ohm headphones. In my quest to find a QUIET current production rectifier, I have found 2 winners. This one, of course, and the TAD Redbase that recently came out. I can't speak for longevity, but there are more positive reviews here than negative. I'll take it!!

Preferred Series 5AR4 | Musical, modern, affordable rectifier.

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I came here to order some JJ GZ34, the most elastic, relaxed of the current production GZ34/5ar4 tubes, fo some hifi amps. They were out of stock; "email to notify when in stock..."

So I tried these, based on Tubestore's reputation and my experience with their STR 274B and EL34 Chinese production tubes.

Well, this is a very fine sounding rectifier right out of the box. I got a new pair of custom-design KT150 single-ended-tetrode hifi amps and had some NOS Mullard GZ34s. Now those are usually great but in some amps they have an excessively tight-sphincter sound which can be choking, peaky and inauthentic in some circuits. I had a female vocals peaky screech with the vintage NOS Brits. But this tube levelled everything out; ameliorated the the dynamic constriction and delivered full bodied, authentic tone.

Preferred Series 5AR4 | Good sound, but not well constructed


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

Preferred Series 5AR4 | My first Preferred Series disappointment

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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!