mapleshade

Good Audio Advice and Critical Listening Skills

More on the Subject of Developing Critical Listening Skills

[This is an updated version of a commentary written many years ago.]

The latest Mapleshade catalog (Spring 09) has, along with hundreds of recommendations, this little piece of audio advice that caught my eye:

For much improved bass and huge soundstage, put your listening chair or sofa right against the wall behind you. Move your speakers in to 5’ in front of you and 7’ or more apart. No room treatments will yield this much bass improvement.

I literally had to read through it a couple of times to be sure I wasn’t hallucinating. But every time I read it, it still said the same thing, so I know I can’t have been dreaming. This is crazy talk. What the hell is wrong with these people?

Well, it’s not all crazy. There is actually a factually true statement at the end of that paragraph. Yes, it is true that no room treatments will yield as much bass as sitting up against a wall. But why stop there? Bass, regardless of its source, immediately seeks out the corners of the room. That’s where the most bass will always be: where the room boundaries are. If you want to hear the maximum amount of bass your speakers are producing, put your head in the corner of the room down at the floor, where three boundaries intersect. Like the sound now? Getting enough bass are ya?

Along the same lines, for a “huge soundstage” try putting one speaker at one end of the room and the other speaker at the opposite end. Why stop at seven feet? My listening room is twenty feet deep; I can get a soundstage that’s twenty feet across without any problem at all.

I would just have to be dumb enough to think that doing such a thing would be a good idea.

Fellow audiophiles and music lovers, it is not. Let’s talk about why.

Room Reflections

The closer you are to anything that the sound coming from your speakers can bounce off of, right before or right after it reaches your ears, the worse the sound. You want to be as far away from everything as you can be, and this includes not only the back wall of your listening room, but the heads of other persons who may be listening with you. This is easily demonstrated. Have a friend or loved one sit next to you and listen critically to some music you know well. Now have that person leave the room. The sound will always get better (unless something else is very wrong). I have done this experiment many, many times and it only comes out one way: fewer near reflections, better sound.

This is why we have three pair of Hallographs in our listening room. They help control room reflections. Reflections are the main cause of bad sound in most listening rooms. The louder you play your stereo, the worse the reflections get and the more they screw up the sound.

We like to play our stereo very loud — much of the music we like demands it — and we simply could not turn up the volume the way we do without effective room treatments. Your first pair of Hallographs, even just “roughed in,” not at all tuned precisely the way they can be, will immediately allow you to play your stereo louder than you could before you installed them. (Since the first pair reflect the sound waves directly back to the listener, Hallographs do actually increase the sound level at the listening position, adding energy and dynamics.)

This is a good thing. It’s a clear sign they work.

One obvious reason that our turn up your volume makes for such a great test is that the louder the problem, the harder it is to ignore.

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Turntable Tweaking Advice – Try This at Home, It Worked for Us

More Setup Advice for Turntables and Cartridges

UPDATE 2020

This commentary was written around 2010 or so. Mapleshade stopped sending me catalogs not long after this commentary, probably not because of anything I’d written. More likely it was because I never bought anything from them. And why would I? They give out some good advice, sure, but it’s mixed in with a lot of audiophile nonsense, the purest kind of nonsense that the audio world is currently drowning in.

The Mapleshade website has a piece of audio advice that caught the eye of one our customers, who sent me the excerpt below.  

Like most advice, especially audio advice, we find that some of it accords well with our own experience and some of it clearly does not. The relationship of good to bad is hard to determine without making a more careful study, but let’s just say that there is plenty of both and let that suffice.

That being the case, we thought it would be of service to our customers to break it down in more detail, separating the wheat from the chaff so to speak.

Here is the complete quote:

To get first rate sound and to get your money’s worth from any expensive cartridge, you MUST meticulously adjust VTA or tracking force every 3-4 months — that’s because stylus suspensions always sag with use. This lowers VTA and seriously kills dynamics and treble sparkle. Lots of people misinterpret this as a worn-out cartridge, an expensive error. Instead, raise VTA or lighten tracking force until your test record’s treble sounds too harsh, then drop VTA or lighten tracking force a hair. Your test record must not be thicker or thinner than the bulk of your record collection. Adjusting tracking force yields slightly better sonic results and longer cartridge life than adjusting VTA — and adjusting tracking force on most arms is WAY easier than adjusting VTA.

The basic idea here is that your cartridge sags over time, causing the VTA (Vertical Tracking Angle) to change, which results in less dynamics and “treble sparkle.”

(By the way, this is a term you will encounter on this blog as a criticism. Treble should never “sparkle,” but we get the point. We make fun of the sparkly sound Mobile Fidelity records are famous for, a sound which bugs the hell out of us, but which does not seem to bother some audiophiles. We assume their speakers or systems lack top end and could use a bit of a boost there. Our Townshend super tweeters allow us to hear all the top end there is on the records we play, unboosted, thank you very much.)

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