*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.

Breezin’ – “Hot Stamper” MoFi Reviewed

Hot Stamper Pressings of the Music of George Benson Available Now

UPDATE 2026

Having heard so many good sounding copies of this album, it is unlikely we would find much to like on the MoFi. But we did a long time ago, after cleaning and playing three MoFi copies, two of which were awful.

Sonic Grade: B-

Another MoFi reviewed, and surprisingly this one isn’t awful.

It has an excellent side two backed with a pretty good side one.

Side two has excellent bass — for a MoFi — and lots of energy — for a MoFi.

It’s slightly smooth, but overall it’s very musical. The best domestic copies are going to eat its lunch, but try to find one that sounds good. Most of them are awful. 

This MoFi copy, though lacking in many ways, is much better sounding than the other MoFi copies we played it against, which were muddy and compressed.

Side one of this copy has some of that sound. Side one lacks the transients we found on other copies and it’s a tad recessed and compressed. However, it does have relatively good bass definition and the strings are nicely textured.

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What to Listen For on Queen’s The Game

Hot Stamper Pressings of the Music of Queen Available Now

UPDATE 2026

Years ago we wrote:

The best sounding side ones were rarely as good as the best sounding side twos.

Not sure if that’s still true but you can check your own copy and see how the two sides compare.

Here some other records that often display side to side differences.

Our Old Commentary

Even the good side ones tended to have a trace of harmonic distortion and compression that is simply nowhere to be found on the good side twos. How and why this is we have no idea. Since every copy had the same sonic issues, we discounted it in our grading.

Only the better copies bring the hits on side one to life and give them the size and power we know they can have.

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A Random Copy of 52nd Street Tells You What, Exactly?

Hot Stamper Pressings of the Music of Billy Joel Available Now

Sonic Grade:

Side One: F / Side Two: C+

The Impex (Cisco) 180 gram remastering of 52nd Street was cut by Kevin Gray, under the direction of Robert Pincus (aka Mr Record), at the now defunct AcousTech Mastering in Camarillo. We noted the following in a recent review for a much superior (how could it not be?) Hot Stamper pressing:

Side one is a joke (not much ambience, resolution, energy, etc.) but side two is actually quite good. Side two fixes the biggest problem with the album: hard, honky vocals.

In his review appearing in The Absolute Sound, Neil Gader plucks two songs out of the album’s nine as especially worthy of praise. Oddly enough they’re both on side two. If I didn’t know the album as well as I do, I might wonder why. 

In our review we went on to say:

But at a cost. It still sounds like a modern record, with not much in the way of space, transparency, richness, resolution and the like. You know, all that ANALOG stuff that old dinosaurs like us like our records to have.

For those of you who have thirty three dollars to spend, you could do a lot worse on side two. Side one is pretty bad and you would have a hard time doing worse.

Allow me to now quote Mr. Gader from The Absolute Sound, October 2011, Issue 216, Pg. 129

The Impex 180-gram remastering by Kevin Gray is superb. It replaces the spongy timing and dull top of the original Columbia LP with expansive space and sharp details. Its vivid and brightened treble is welcome compared to the warm but smothered original. Listen for Joel’s doubled harmonies, the pennywhistle in “Rosalinda’s Eyes,” and the burning horn section in “Half a Mile Away,” and you’ll hear what a difference a great remastering makes.

Mr. Gader has a bad original pressing, and like most reviewers he makes the mistake of assuming that other originals, and probably all the originals, perforce sound like his. Speaking from experience, they most assuredly do not. We will not be addressing his specific complaints in this commentary for one simple reason.

Nothing in his review describes the sound of the best copies. 

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It Only Took Us Six Years to Find Another Killer Copy of Down In L.A.

Hot Stamper Pressings of Hippie Folk Rock Albums Available Now

UPDATE 2025

Our comments about our Hot Stamper winner from 2019 appear below.

Note that we could not even find White Hot sound on either side, and side two, at 1+, does not even qualify as a Hot Stamper these days, which means it would never be offered for sale on the site.

This was a tough shootout!

We had a lot more research and development to do, and six years later we had the killer copy to prove that it could be done. In 2025, we found a pressing that made it all worthwhile.

This is one of the BEST copies we’ve played in many years, close to five I would guess. Brewer and Shipley’s first and only release for A&M has long been a Desert Island disc in my world. I consider it one of the top debuts of all time, although it’s doubtful many will agree with me about that since I have yet to meet anyone who has ever even heard of this album, let alone felt as passionate as I do about it.

To me this is a classic of Hippie Folk Rock, along the lines of The Grateful Dead circa American Beauty, surely a touchstone for the genre. It’s overflowing with carefully-crafted (B and S apparently were obsessive perfectionists in the studio) inspired material and beautifully harmonized voices backed by (mostly) acoustic guitars. The Beatles pulled it off masterfully on Help and Rubber Soul. (more…)

Symphonie Fantastique – Three Mastering Options

Hot Stamper Pressings of the Music of Berlioz Available Now

UPDATE 2026

Years ago we played a reissue of the title you see pictured which prompted us to make some observations and ask some questions about the approach the mastering engineer might have taken.

And this one comes complete with the bonus 7″ entitled “Berlioz Takes a Trip,” in which Bernstein explores the work “with musical illustrations by the New York Philharmonic.”

Clocking in at around 45 minutes, Symphonie Fantastique is a difficult work to fit onto a single LP,  which means that the mastering engineer has three options when cutting the record:

  1. Compress the dynamics,
  2. Lower the level, or
  3. Filter the deep bass.

On this side two it seems that none of those approaches were taken by the engineer who cut this record in the early 80s — there’s plenty of bass, as well as powerful dynamics, and the levels seem fine.

How he do it? Who knows? Like so much in the world of records, it’s a mystery.

What’s Your Theory Then?

Side one, however, is bass shy. Did the engineer filter out the lower frequencies, or is it just a case of pressing variation being the culprit. Who can say?

If we had many more copies with these same stampers for side one, all with less bass, we might be able to draw a conclusion about that, one that might be highly probable but of course not dispositive, black swans being a regular part of our experience.

The very next copy we might find with those stampers could have plenty of bass.

Then we would be forced to say that our highly probable theory had been falsified conclusively.

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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 in 2018.

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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