*Side to Side Differences

These are just a small fraction of the records we’ve found to be good for recognizing side to side differences.

Dopey Record Theories – Putting Bad Ideas to the Test

Hot Stamper Pressing of the Music of Joni Mitchell Available Now

The discussion below was prompted by a stunning White Hot Stamper 2-pack that had just gone up on the site..

I implored the eventual purchaser to note that side two of record one has Joni sounding thin, hard and veiled. If you look at the stampers you can see it’s obviously cut by the same guy (no names please!), and we’re pretty sure both sides were stamped out at the same time of the day since it’s impossible to do it any other way.

What accounts for the amazing sound of one side and the mediocre sound of its reverse?

If your theory cannot account for these huge differences in sound, your theory is fatally flawed. 

Can anything be more ridiculous than the ad hoc, evidence-free theories of some audiophile record collectors desperately searching for a reason to explain why records — even the two sides of the same record — sound so different from one another?

The old adage “the proof of the pudding is in the eating” couldn’t be more apt. If you want to know if a pudding tastes good, a list of its ingredients, the temperature it was cooked at, and the name of the person stirring it on the stove is surely of limited value. To know the taste one need only take a bite.

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Paris 1917-1938 – Side One Versus Side Two

Hot Stamper Pressings of Mercury Living Presence Records Available Now

UPDATE 2025

This listing was written all the way back in 2012 for the first Hot Stamper pressing of SR 90435 we’d ever listed as a Hot Stamper.

Note that it only had one good side, and even that side had a serious problem.

Thirteen years later in 2025 we would do a real shootout for this wonderful recording and learn something very few audiophiles know to this day — that the best stampers and the worst stampers are sometimes the same stampers.

Our 2012 Review

Super Hot Stamper sound for Eric Satie’s wonderfully eccentric Parade (and the Auric piece as well) can be found on this rare original promo copy of Mercury SR 90435, a record that was previously on the TAS List if I’m not mistaken.

It certainly deserves to be. The sound is BIG and OPEN, and like so many Mercury recordings with the London Symphony, it’s rich and full-bodied, not thin and nasally as is so often the case with their domestically recorded releases. Above all the sound is transparent, lively and dynamic.

In many ways this album would certainly serve quite well as an audiophile Demo Disc: the timbre of the wide array of instruments used is (mostly) Right On The Money.

Check out the lengthy and humorous producer’s notes for the sessions below. And people think The Beatles discovered experimental sounds in the studio.

The Brass Lacked Weight

With one small exception: the brass doesn’t have all the weight of the real thing, and for that we have deducted one plus from our top grade of three.

Side one has classic bad Mercury sound.

So screechy, hard and thin. How many audiophiles own records like this and don’t know that the sound of one side is awful and the other brilliant?

Since so few have ever commented publicly about such matters — and even supposedly knowledgeable audiophile reviewers never bother to even bring up the subject of one side versus the other — one must conclude that this is a subject that has yet to pierce the consciousness of most of our audiophile brethren, especially the ones who haven’t yet discovered this site.

Now’s a good time to start. Dig in, you may be surprised by what you find.

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One of Our Best Sounding Pressings of Revolver Lacked Space on One Side

Hot Stamper Pressings of Revolver Available Now

On side one we played I’m Only Sleeping first, followed by Taxman.

On side two we started with And Your Bird Can Sing, followed by Good Day Sunshine.

You may notice that there seems to be a pattern in the way we pick which songs of each side to do first.

As you can see from the notes, side two of our most recent White Hot stamper Shootout Winner was doing everything right.

The second track was very tubey and present. Good Day Sunshine, the first track, was super rich and weighty, with lots of room around the vox. (I hope you can read our writing. If you can’t, just email me and I will try to find the time to transcribe the rest of the text.)

However, we had a side one that was slightly better than the side one you see here.

The Second Round

When we played the two best copies back to back, side two of this copy came out on top, earning a grade of 3+, but the side one of another pressing showed us there was even more space in the recording than we noticed the first time around.

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The Gayne Ballet on Mercury Can Be a Little Bright

Hot Stamper Pressings of Classical Masterpieces Available Now

UPDATE 2025

The review you see below was written more than ten years ago.

Having just done another shootout for SR 90209, Dorati’s recording of the two works, The Gayne Ballet and Romeo and Juliet, I can now confirm that there are some stampers that are indeed way too bright.

Side one of a recent copy had a sour midrange. Side two of the same copy was brash and metallic.

As for side two not sounding as good as side one in the older review before, seems we clearly got that wrong, the result, to some degree, of having an inadequate sample size.

Also,  we didn’t have as good a stereo as we do now, and we weren’t as good at doing shootouts back then either.

Our Old Review

This side one is truly DEMONSTRATION QUALITY, thanks to its superb low-distortion mastering. It’s yet another exciting Mercury recording. The quiet passages have unusually sweet sound.

This kind of sound is not easy to cut. This copy gets rid of the cutter head distortion and coloration and allows you to hear what the Mercury engineers accomplished.

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Pretzel Logic – Our Four Plus Shootout Winner from 2011

Hot Stamper Pressings of the Music of Steely Dan Available Now

This BEYOND White Hot side one (A++++) of Pretzel Logic has nothing less than master tape sound. [Whatever that is!] Our Four Plus ranking is rare enough, but in this case it has the added benefit of conferring upon this very pressing the status of the best sounding Steely Dan recording we have ever heard.

There is no better recording in the Steely Dan catalog, and I don’t think there’s a copy anywhere that’s any better than this on side one. (To see what we consider to be the single best sounding album from two hundred(!) other artists, please click here.)

UPDATE 2026

  • Note that only one side on this pressing was actually any good. Side two earned a sub-Hot Stamper grade of 1+. We no longer sell records with grades that low.
  • In 2011 we still had a lot to learn about Pretzel Logic, but this copy sure had us fired up at the time, and that’s a good thing, right?
  • Our lengthy commentary entitled outliers and out-of-this-world sound talks about how rare these kinds of pressings are and how we go about finding them.
  • We no longer give Four Pluses out as a matter of policy, but that doesn’t mean we don’t come across records that deserve them from time to time.
  • Nowadays we most often place them under the general heading of breakthrough pressings. These are records that, out of the blue, revealed to us sound of such high quality that it changes our undertanding of the recording itself.
  • We found ourselves asking “Who knew?” Perhaps a better question might have been “How high is up?”

This Beyond White Hot Pretzel Logic has got it all: tons of energy, mindblowing transparency, uncanny presence, and lots of deep bass. We feel Pretzel Logic is the band’s best sounding recording, and here’s a copy that will show you why.

There’s lots of room around the drums, texture to the bass, breath to the vocals, and weight to the bottom end. The clarity is unbelievable and the overall sound is HUGE! The piano sounds AMAZING and the top end is silky sweet. It’s more open and more alive than you could ever imagine.

We’ve been playing this record since it came out in 1973 and this is the first “Four Plus” A++++ grade we have ever awarded it. The sound is Demo Disc quality of the highest order.

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On Our Top Copy, How Could We Tell that One Side Was Not as Full-Bodied?

Hot Stamper Pressings of the Music of Gordon Lightfoot Available Now

We described a recent Shootout Winning pressing of Summer Side of Life this way:

So transparent, open, and spacious that nuances and subtleties that escaped you before are now front and center.

Everything you want in the sound of a good Folk Rock album is here in abundance.

Tubey Magical acoustic guitar reproduction is superb on the better copies of this recording. Simply phenomenal amounts of Tubey Magic can be heard on every strum, along with richness, body and harmonic coherency that have all but disappeared from modern recordings (and especially from modern remasterings).

Here are the notes for the 2.5+/3+ copy we put up on the site and sold in 2025.

Side two was killer in every way, and the way we know that is we played a bunch of copies and nothing could beat it. This side two took top honors for having exactly the sound we described above.

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On A Day at the Races, Which Side Lacked Space?

Hot Stamper Pressings of the Music of Queen Available Now

We described our 2025 White Hot Shootout Winner this way:

Here are just a few of the things we had to say about this incredible copy in our notes: “tubey and silky vox”…”very transparent and present”…”3D and sweet and tubey”…”big bass!” (side two)…”very full bodied and 3D.”

We shot out a number of other imports and the midrange presence, bass, and dynamics on this outstanding copy placed it well above almost all the other pressings we played.

As you can see from the notes, side one was killer in every respect, and the way we know that with a high degree of certainty is that we played a bunch of copies and nothing could touch it.

Side two was every bit as good in virtually every area, but in the final analysis we determined it fell a bit short in one. We discovered that fact when we came across a side two that was slightly better in one aspect of its sound than the side two you see described in the notes below.

When we played the two best copies back to back, something we do for each side as a final test in every shootout, side one of this copy came out on top, earning a grade of 3+. However, the side two of another pressing showed us there was even more space to be heard surrounding the music than we’d noticed the first time around.

With another copy earning a better grade for having even more space and ambience, we felt the right grade for this side two was 2.5+, Nearly White Hot.

Will the owner of this copy be able to tell?

That seems unlikely. It would be the rare listener indeed who would be able to detect anything missing on this amazingly good side two.

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Why Are the Earliest Stampers on 461 Ocean Boulevard So Bad Sounding on Side Two?

Hot Stamper Pressings of the Music of Eric Clapton Available Now

The UK pressings with the side two stampers shown below have not done well in our shootouts for a number of years now. If you own a copy with B-1 stampers on side two, the good news is that we can get you a much better sounding copy of 461 Ocean Boulevard than you have ever heard.

Stamper numbers are not the be-all and end-all in the world of records, a subject we discuss below, but after hearing too many copies with these stampers and substandard sound, from now on we are going to focus our attention on the stampers that do well and avoid copies with the B-1 marking on side two.

Bilbo cut the A-3 side one and did a great job; his side one won our most recent shootout.

Whoever cut side two really screwed it up, as you can see from our notes for our last two shootouts.

When it comes to stampers, labels, mastering credits, country of origin and the like, we make a point of revealing very little of this information on the site, for a number of good reasons we discuss here.

The idea that the stampers are entirely responsible for the quality of any given record’s sound is a mistaken one, and a rather convenient one when you stop to think about it. Audiophiles, like most everybody else on this planet, want answers.

In the world of records, there aren’t many, but B-1 for side two of this album is a clear exception to the rule that the stamper numbers are one part of a multi-faceted puzzle. In this case, B-1 is awful and is best avoided at all costs.

The Biz

Being in the shootout business means we have no way to avoid such realities, which is why it is so easy for us to accept them.

The amateurs and professionals alike who review records for audiophiles want there to be clear-cut answers for every album they write about. Uncertainty and trade-offs upset them no end.

We recognized twenty years ago that the empirical pursuit of record knowledge, practiced scientifically, must be understood as incomplete, imperfect, and provisional.

That is not going to change no matter how upsetting anyone may find it.

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Thick as a Brick Is a Top Test Disc for System Accuracy

Hot Stamper Pressings of the Music of Jethro Tull Available Now

From 2009 to 2010 this was our single go-to record for testing and tweaking our system.

Although we now use an amazing copy of Bob and Ray (the big band version of The Song of the Volga Boatmen located therein has to be one of the toughest tests we know of), we could easily go back to using TAAB.

Artificiality is the single greatest problem that every serious audiophile must guard against with every change and tweak to his stereo. cleaning system, room, electricity and everything else.

Since TAAB is absolutely ruthless at exposing the slightest hint of artificiality in the sound of the system, it is clearly one of the best recordings one can use to test and tune with. Here are just some of the reasons this was one of our favorite test records back in the day:

Dynamics

The better copies are shockingly dynamic. At about the three minute mark the band joins in the fun and really starts rocking. Set your volume for as loud as your system can play that section. The rest of the music, including the very quietest parts, will then play correctly for all of side one. For side two the same volume setting should be fine.

Bass

The recording can have exceptionally solid, deep punchy bass (just check out Barrie “Barriemore” Barlow’s drumming, especially his kick and floor toms. The guy is on fire).

Midrange

The midrange is usually transparent and the top end sweet and extended on the better pressings.

Tubey Magic

The recording was made in 1972, so there’s still plenty of Tubey Magic to be heard on the acoustic guitars and flutes.

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Our Shootout Winner Had Sound that Was Really Jumping Out of the Speakers

Hot Stamper Pressings of Direct-to-Disc Recordings Available Now

Recently we put up a copy of this wonderful direct to disc recording with this description:

Here are just a few of the things we had to say about this incredible copy in our notes: “tubey and 3D and breathy”…”huge and lively”…”powerful orchestra”…”jumping out of the speakers”…”very rich and present.”

Great energy, but the sound is relaxed and Tubey sweet at the same time, never squawky, with plenty of extension on both ends – that’s analog for ya!

This is no sleepy over-the-hill Sheffield Direct-to-Disc (referring to the later Harry James titles, not the excellent first one) – these guys are the real deal and they play their hearts out on this album, recorded in a church with exemplary acoustics.

Note that side two did not have all the space, but was so punchy and 3-D that it was easy to award it a Nearly White Hot Stamper grade of 2.5+. The copy that beat it had all the same qualities and more space, sounding more like side one of this very pressing.

And here are the actual notes for the Shootout Winning copy we found.

We have no trouble hearing when a record is doing everything right, and when a record has one side that is a bit lacking, it’s the shootout that shows us in what area it is lacking.

In this case, our notes read:

  • Not all the space but so punchy and 3-D

Track one had sound that “jumped out of the speakers,” and if — like us — that’s the kind of sound you are looking for, our Hot Stamper pressings are where you can find it.

If you would like to test the pressings you own, here are a few that might make good tests for that quality. Also, many of our customers have commented about that quality in the Hot Stamper pressings we sent them, and you can read their letters here.

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