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Interesting response from PSB re: freq response

1260 Views 12 Replies 8 Participants Last post by DS-21, May 18, 2007

AndrewMe

Discussion Starter · May 14, 2007

I have been looking for a sub for a bit and a buddy of mine encouraged me to make sure i know the freq response of the subs I have been looking at.

In that endevour I emailed PSB regarding a frequency response chart for their 6i subwoofer.

The response was as follows:

Thank you for your recent request via the PSB Speakers web-site.

Sorry, but we do not give out Measurements for our Speakers/Subwoofers.

Here

is a link to some reviews for the 6i. Sometimes a reviewer will post

measurements in his review.

Thank you for your interest in PSB Speakers.

Best regards,

PSB Speakers

(rn)

I thought that was interesting... any feedback or experience from other folks about gathering frequency response info, or why they wouldnt give that out?

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Macfan424

· #2 · May 14, 2007

That used to be fairly common in "the old days."

There are no industry standards for speaker measurement, so these statistics lend themselves to misrepresentation. Published figures generally lead to less than accurate comparisons. Many are notoriously "optimistic." Some manufacturers just want to avoid getting into what they regard as a p***ing match.

I'd agree with PSB. Reviewers' measurements are more useful, although you still can't compare the results from reviewer A with those from reviewer B.

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AndrewMe

Discussion Starter · #3 · May 14, 2007

fair enough... I guess Im just so naive as to expect that at some point, someone will have posted an actual, reliable piece of information, maybe even the company itself.... lol

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John F. Palacio

· #4 · May 15, 2007

Measuring frequency response of a speaker is rather dicey. You have on axis, off axis (at many different angles both vertical and horizontal) and power which is highly room dependent and consists of all of the above in a particular room.

Add to the equation where the speaker is placed in a room and....

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rockemsockem

· #5 · May 15, 2007

Here's a good resource I use for speakers:

http://www.soundstageav.com/speakermeasurements.html

And using this chart I compiled, hopefully you can get a good sense of where the PSB stacks up:

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Harrypt

· #6 · May 15, 2007

Quote:
Originally Posted by John F. Palacio /forum/post/0

Measuring frequency response of a speaker is rather dicey. You have on axis, off axis (at many different angles both vertical and horizontal) and power which is highly room dependent and consists of all of the above in a particular room.

Add to the equation where the speaker is placed in a room and....

And some speakers that measure very poorly can sound pleasing to the ear. There are many classic, long running models in the past that measure poorly.

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warpdrive

· #7 · May 15, 2007

The interesting thing about PSB speakers is that their specs are usually very conservative. If you compare the measurements of the 6i to other subs, you will see it fares very well against the other high value subs mentioned often in this forum, but if you look at the specs, they look pretty poor compared to other brands.

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John F. Palacio

· #8 · May 15, 2007

Quote:
Originally Posted by Harrypt /forum/post/0

And some speakers that measure very poorly can sound pleasing to the ear. There are many classic, long running models in the past that measure poorly.

There's a lot more to a loudspeaker than frequency response . Things like distortion, group delay, anomalies at the crossover region and where this crossover is, directionality and so forth. However I must say that I am not aware of any classic, long running models that measure poorly/ Although I have a notion that the definition of poorly might the issue. Certainly smooth deviations in frequency response are acceptable, but abrupt peaks or valleys more troublesome.

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AndrewMe

Discussion Starter · #9 · May 17, 2007

It seems teh PSB does stack up pretty well.

I went ahead with the purchase, we'll see in just a few days.

A good friend of mine here has a HSU sub with the turbos and that this is SO loud and plays so low, I know the psb wont be quite to that level, but his is also the size of a small dining room table lol

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patnshan

· #10 · May 17, 2007

Quote:
Originally Posted by AndrewMe /forum/post/0

I have been looking for a sub for a bit and a buddy of mine encouraged me to make sure i know the freq response of the subs I have been looking at.

In that endevour I emailed PSB regarding a frequency response chart for their 6i subwoofer.

The response was as follows:

Thank you for your recent request via the PSB Speakers web-site.

Sorry, but we do not give out Measurements for our Speakers/Subwoofers.

Here

is a link to some reviews for the 6i. Sometimes a reviewer will post

measurements in his review.

Thank you for your interest in PSB Speakers.

Best regards,

PSB Speakers

(rn)

I thought that was interesting... any feedback or experience from other folks about gathering frequency response info, or why they wouldnt give that out?

This is exactly what Bose says. Not sounding good from PSB.

Pat

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warpdrive

· #11 · May 17, 2007

Quote:
Originally Posted by patnshan /forum/post/0

This is exactly what Bose says. Not sounding good from PSB.

Pat

The difference is that PSB's HAVE been measured and reviewed well in audiophile magazines, and they stack up well against the other quality speakers. Bose on the other hand would probably sue or threaten to sue any magazine who dares to objectively evaluate their speakers.

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patnshan

· #12 · May 17, 2007

Quote:
Originally Posted by warpdrive /forum/post/0

The difference is that PSB's HAVE been measured and reviewed well in audiophile magazines, and they stack up well against the other quality speakers. Bose on the other hand would probably sue or threaten to sue any magazine who dares to objectively evaluate their speakers.

I have listened to PSB's and think they sounds very nice. That is why I wonder why they would give this Bose type response.

Pat

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DS-21

· #13 · May 18, 2007

Quote:
Originally Posted by Harrypt /forum/post/0

And some speakers that measure very poorly can sound pleasing to the ear. There are many classic, long running models in the past that measure poorly.

Not if one measures the right things and uses them properly.

Chances are, going from a speaker with superlative distortion measurements and in-room power response to a poorly measuring "classic, long running model" will show the latter to do one or two things with some magic and to stink up the rest of it.

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