Half-Speed Masters

Half-speed mastered recordings.

Traveling Back in Time with Cat Stevens on Mobile Fidelity

Hot Stamper Pressings of the Music of Cat Stevens Available Now

Our good customer Roger wrote us a letter years ago about his Tea for the Tillerman on Mobile Fidelity, in which he remarked, “Sometimes I wish I kept my old crappy stereo to see if I could now tell what it was that made these audiophile pressings so attractive then.”

It got me to thinking. Yes, that would be fun, and better yet, it could be done. There are actually plenty of those old school audio systems of the 60s and 70s still around. Just look at what many of the forum posters — god bless ’em — are running. They’ve got some awesome ’70s Japanese turntables, some Monster Cable and some vintage tube gear and speakers designed in the ’50s.

With this stuff you could virtually travel back in time, in effect erasing all the audio progress made possible by the new technologies adopted by some of us over the last 30 years or so.

Then you could hear your Mobile Fidelity Tea for the Tillerman sound the way it used to when you could actually stand to be in the same room with it.

My question to Roger was “What on earth were we hearing that made us want to play these awful half-speed mastered records? What was our stereo doing that made these awful records sound good to us at the time?”

In Search of a Bad Stereo

I know how you can find out. You go to someone’s house who has a large collection of audiophile pressings and have him play you some of them. Chances are that his stereo will do pretty much what your old stereo and my old stereo used to do — be so wrong that really wrong records actually start to sound right! It seems crazy but it just might be true.

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The Most Serious Fault of the Typical Half-Speed Mastered LP?

Hot Stamper Pressings of Revolver Available Now

UPDATE 2026

This commentary must be fairly old because we haven’t bothered to play anything put out by Sundazed in longer than I can remember.

The most serious fault of the typical Half-Speed mastered LP is not incorrect tonality or poor bass definition, although you will have a hard time finding one that doesn’t suffer from both.

It’s dead-as-a-doornail sound, plain and simple.

And most Heavy Vinyl pressings coming down the pike these days are as guilty of this sin as their audiophile forerunners from the 70s. The average Sundazed record I throw on my turntable sounds like it’s playing in another room. What audiophile in his right mind could possibly find that quality appealing? (Apparently the guy who wrote this absurd list of records you should buy It has a number of inexcusably at best mediocre and mostly awful sounding Sundazed records.)

But Sundazed and other companies just like them keep turning out this crap. Somebody must be buying it.

So how does the famous MoFi pressing of Revolver sound? In a word, clean. Also not as crude as the average British import, and far better than any Japanese or domestic pressing we heard.

But it’s dead, man. It’s just so dead.

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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 can’t deny that 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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MoFi Proves Once Again It Has No Idea How to Make a Good Record

Hot Stamper Pressings of the Music of Women Who Rock Available Now

We recently auditioned the Mobile Fidelity pressing of Learning to Crawl and wrote down our impressions as the record was playing that you see below.

We try to be very specific about the strengths and weaknesses of the records we play, which is why we reproduce our notes — in this case for audiophile records — whenever possible. (There are plenty of shootout notes for vintage pressings on the blog as well.)

The title at the top of our post-it sets the stage for what you are about to read: the specific faults of an “especially bad MoFi.”

Do they make any other kind? Well, sometimes, to be sure, but the good ones are few and far between.

It must be hard to make a record sound this bad, but if anyone can do it, Mobile Fidelity has proven that they are the men and women for the job. Let’s get down to brass tacks.

Side One

Dull drums at intro.
Bass compressed and wooly.
Vocal present and hard.
Everything else recessed.

Side Two

Very dry snare and guitar.
Flat, edgy and lifeless.
Not even clear.
Just shitty.
Lacks bass here too.

Consensus

NFG.

This one definitely belongs in the Mobile Fidelity hall of shame (along with 66 of their other titles). My CD sounds better.

To aid you in understanding just how lost the buyers of these audiophile records are these days — and who am I to talk? — we reproduce the five most recent reviews from Discogs as of 5/2026 below.

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Double Vision – MoFi Reviewed

Hot Stamper Pressings of Classic Rock Albums Available Now

This title is yet another record that belongs in the audiophile hall of shame.

Like most Mobile Fidelity pressings, it’s better suited to the stone age stereos of decades past.

There is a Mobile Fidelity Half-Speed Mastered version of this album currently in print, and an older one from the days when their records were pressed in Japan (#052).

We haven’t played the latter in years; as I recall it was as lifeless and sucked-out in the midrange as many of the other famous MoFi’s of that period, notably The Doors (#051) and Trick of the Tail (#062), which is perhaps the most lifeless record this ridiculous label ever released.

Is there any doubt that the newer MoFi pressing of the album will be every bit as bad or worse? (more…)

Should You Feel Guilty about Owning the CBS Half-Speed?

Hot Stamper Pressings of Rock and Pop Albums Available Now

UPDATE 2026

The review you see reproduced below was written in 2010 or so. As embarrassing as it may be in the eyes of some audiophiles, I think I actually owned the very pressing we reviewed at the time.

Back in the dark days of the 80s, if an audiophile pressing sounded better than whatever random domestic copy I had managed to find — not knowing anything about pressings variations — I would unhesitatingly give it a home in my collection.

As far as I was concerned, it was the best way to hear the music, and what could possibly be more important than that?

I didn’t see it as a stopgap or benchmark the way I would now. For the purposes of enjoying the music, the Half-Speed was simply the best available pressing I was aware of at the time.

(“I was aware of at the time” is at the heart of every mistaken judgment we audiophiles make. We can’t be blamed for not knowing what we don’t know. What we can be blamed for is not acting on the available information that makes it easy to learn just how much we don’t know and what we may be missing as a result.)

Keeping bad sounding records in my collection is something that I did with many of the records I owned, long after I should have known better, including a favorite of mine, Powerful People. When my stereo finally got good enough to show me how badly MoFi had ruined the sound, I was mortified.

But all through the 80s and 90s I cannot deny that I played that Mobile Fidelity pressing scores of times and loved every minute of it. Thrilled to it even. The Half-Speed of Guilty too, just not as often. (How much of Barbra Streisand’s nasally-singing can one man take? We all have our limits!)

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We Drop the Needle on Another Sad Excuse for an Audiophile Pressing

More on the Subject of Half-Speed Mastering

This is an A&M Audiophile Sampler, made in Canada and pressed on Japanese vinyl .

There is a bit of a story behind this title. It’s not the kind of record we normally would buy, or even bother to play truth be told.

A customer had emailed us saying it sounded great. It was cheap so we grabbed one for fun. Our notes read:

  • Sucked out middle
  • Clean and hard (maybe like a CD?)
  • This sucks

Hard to imagine one of our customers liked the sound of this pressing, but I assure you that one of them did, so make of that what you will.

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Remastered, But Why on Earth Would They Bother?

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Supersax Plays Bird is awful music with awful sound.

In 1980 this record single-handedly convinced me that MoFi would lower themselves to remastering records that have little in the way of actual musical value.

UPDATE 2022

I just looked up the mastering engineer credited with cutting the original pressings in 1973, Wally Traugott. Now what are the chances that Stan Ricker cut this record better than Wally Traugott? One in a million? That would be my guess.

Which simply means that the right domestic pressing on Capitol might just be a good sounding record.

But why should anyone care? The music is hopeless.

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Tell It Like It Is – Another A&M Half-Speed Mastered Disaster

Hot Stamper Pressings of the Music of George Benson Available Now

The Half-Speed is pretty — pretty lifeless if you ask me, in the way that so many Half-Speed mastered records are.

It’s cut very clean, but until you play a good A&M pressing, you don’t know how much meat has been stripped from the bones. The best A&M pressings sound like a Rudy Van Gelder recording, which, of course, they are.

These A&M Half-Speeds suffer from all the same shortcomings that other Half-Speeds suffer from: the kind of pretty but lifeless and oh-so-boring sound that we describe in listing after listing.

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I Owe a Huge Debt of Gratitude to Mobile Fidelity

Hot Stamper Pressings of the Music of Supertramp Available Now

For me, Crime of the Century worked like a gateway drug to get me addicted to the amazing soundscapes found on so many 70s Prog Rock and Art Rock recordings, although I didn’t know what the term Art Rock meant or whether it even existed yet. I surely never heard anyone use the term.

I just knew I loved Supertramp’s music. Both Crime and Crisis? What Crisis? were in heavy rotation in the cheap apartment I rented three blocks from the beach in San Diego where I was living in the mid-70s.

(It shared no common walls with any other units, which was an absolute necessity for someone who liked to play his music good and loud and often late into the evening. The police came knocking on my door once at two in the morning after I got a bit too carried away with the “running around the airport” song on Dark Side of the Moon. Apparently the next door neighbors were not enjoying it as much as I was.)

MoFi Rocks

The first Supertramp album I bought on audiophile vinyl would have had to have been Crime of the Century released by Mobile Fidelity in 1978.

It was that label’s first rock release and it showed me the kind of Big Rock Sound I didn’t think was possible for two speakers to produce no matter how big they were, and mine were very big indeed.

In my mind it sounded to me like live music at a concert. I had simply never heard sound like that in my livingroom.

Partly that was because a few years earlier I had upgraded to some very big speakers and some awesomely expensive tube gear in 1976.

When I threw that super Hi-Fi Audiophile pressing on the turntable and turned the volume up good and loud, I thought there could be no question that finally, after all these years and after so many different stereo systems, I had reached the pinnacle of home audio. How could the sound possibly get any better? (Of course, although I didn’t know it at the time, I would devote the next 40-plus years to exploring that question.)

By 1978, Crisis? What Crisis and Even in the Quietest Moments had already come out, and though you couldn’t buy either of those albums on a super-duper disc from Mofi, there was a Half-Speed of Crisis which, I have to admit, sounded great to me at the time and well after it should have. (I don’t know what I thought of the Sweet Thunder pressing of EITQM, but I know what I think of it now: it sucks.)

I became an even bigger fan of Crisis than I had been of COTC, if you can believe such a thing. (None of my friends could.)

Since Crime… is one of those albums that I still listen to regularly, I can say with confidence that it is the better album by a small margin, and one that would come with me to my desert island even if I were limited to as few as ten titles — that’s how good it is.

And I owe a debt of gratitude to a label that comes in for a lot of criticism on this blog, the one that took Supertramp’s best album and made it a Demo Disc the likes of which I had never heard before, Mobile Fidelity.

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