2. speakers
  3. 164823-20253

If you don't have a wide sweet spot, are you really an audiophile?

Hi, it’s me, professional audio troll. I’ve been thinking about something as my new home listening room comes together:

The glory of having a wide sweet spot.

We focus far too much on the dentist chair type of listener experience. A sound which is truly superb only in one location. Then we try to optimize everything exactly in that virtual shoebox we keep our heads in. How many of us look for and optimize our listening experience to have a wide sweet spot instead?

I am reminded of listening to the Magico S1 Mk II speakers. While not flawless one thing they do exceptionally well is, in a good room, provide a very good, stable stereo image across almost any reasonable listening location. Revel’s also do this. There’s no sudden feeling of the image clicking when you are exactly equidistant from the two speakers. The image is good and very stable. Even directly in front of one speaker you can still get a sense of what is in the center and opposite sides. You don’t really notice a loss of focus when off axis like you can in so many setups.

Compare and contrast this with the opposite extreme, Sanders' ESL’s, which are OK off axis but when you are sitting in the right spot you suddenly feel like you are wearing headphones. The situation is very binary. You are either in the sweet spot or you are not.

From now on I’m declaring that I’m going all-in on wide-sweet spot listening. Being able to relax on one side of the couch or another, or meander around the house while enjoying great sounding music is a luxury we should all attempt to recreate.
erik_squires
daveyf's avatar
daveyf
2,871 posts
 
A small sweet spot would indicate that the speaker is beaming! This is why in your example of the Sanders ESL’s...which are known to beam, that the sweet spot is small. If you listen to a speaker that is a point source, you will typically get a wider and more accurate sound stage, IME. OTOH, a large dipole flat panel, which is anything but a point source, will typically either beam information...or will scatter information from the front and the back...and again have possibly a more diffuse image. ( Plus one that is typically quite wide!)
Having owned both panels and point source speakers, depending on your room acoustics, both can be very satisfactory. Remember, when we go to a live event, we typically sit or stand in one place...and if one listens to the placement of instruments at that event, the sound source will in fact vary slightly as one moves around the venue, it will also be fairly encompassing as to the sound field ( not in any way pinpoint!) -- IME.
emrofsemanon's avatar
emrofsemanon
292 posts
 
the widest sweet spot i've ever heard was with the bose SR-1 cinemate system. whatever you may think of that firm or its speakers, this system let me sit or stand anywhere in the room and hear basically the same stereo image. didn't have a lot of depth, though. 
clearthinker's avatar
clearthinker
1,582 posts
 
On the basis that there is rarely a free lunch, it seems to me that if you arrange your speakers and room to obtain a wide sweet spot, it will be less 'sweet' than if you arrange for the one listener optimum.

Indeed the loss may well be of depth, as @emrof, above, suggests.

Compromise always involves sacrifice.
audioman58's avatar
audioman58
4,134 posts
 
One thing to mention speakers ,since  I have been modding them mainly for myself and a few others for many years, your Xover is the ❤️ or brain 🧠 
of any Loudspeaker, the Vast majority of Xover parts are average quality  at best.
out of a scale 1-15 on average a 7.
Also your binding post 90% are cheap gold over brass, not very musical.and poor conductor.high resistance.
a decent WBT copper gold with  Furutech copper gold crimp on terminals is far better then solder, and upgrading the Xover essential for expended soundstage 
width,depth and precision imaging ,the quality of stock capacitors,resistors, inductors,
even wiring many times is average at Best. If you love your speaker, and the drivers are of good quality well worth the consideration ,if limited on internal space ,then a external Xover with small custom boxes would be the answer ,better quality Xover Bigger parts = a Huge upgrade ,look at Tony Gees capacitor cook book fir starters Humblehomemadehifi capacitor test, and Original pre 2011 Mills resistors excellent ,sonic craft carry, or the Best but $$  Path audio resistors Jantzen awg 14 inductors waxed foil, or open coil for bass,excellent value $$
erik_squires OP
16,049 posts
 
I am all for good crossover parts, as I think may be evident in past tweets, but the width of the sweet spot is going to be much more affected by the crossover frequencies chosen than the cost of the resistors.

Other things matter, of course, like the width of the baffle, and the dimensions of the individual radiators and their location, but once those are set, it is the Hz at which the crossovers occur which determine whether or not there will be smooth off-axis response.

Best,
E
More to discover