Join Date: Jul 2006
Location: Port Coquitlam, BC
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|View Poll Results: Is there any value comparing the sound quality of subs without the 'right conditions'|
|Voters: 0. You may not vote on this poll|
I believe group delay is a measure of transient response (although affected by phase and also FR). Also - It's probably not important or correct to separate extension from FR (they are the same thing).
I agree that if all measurements you listed (1-6) are the same for two subs then they will sound the same. However, for those measurements to be the same you would need to have the exactly the same subwoofer. Two different subs will not measure precisely the same for all of these parameters. That is why these were the measurments taken by Ilkka in the old Home Theatre Shack subwoofer tests.
so, i believe we've come up with a good basis of what makes up sub sound quality.
My next question is, what are the 'right conditions' to compare sound quality; specifically by ear?
Here are my thoughts:
1. Room conditions must be exactly the same; same location, same furniture, etc.
2. All subs should be level matched
3. Two identical subs should be used per type of sub (if possible) to help acheive a flat response
4. The subs should be eq'd to as flat as response as possible (via audyssey, sms-1, etc.)
5. The subs being compared are all compared at the same time
what did i miss?
A second question comes to mind as well, in terms of the characteristics we defined as sound quality; who is best to make comparisons between subs for sub sound quality?
1. The people who have tested these subs in the 'right conditions' (obviously)
2. The manufacturer of the sub when comparing between different subs that they manufacture ; the manufacturer should know how the sub is designed and its capability (the 6 characteristics) for good sound quality.
3. Anyone with accurate, non-room specific data to support their claims
Who should we take with a grain of salt when they talk about/compare sub sound quality?
1. Anyone comparing subs based on their sub sound quality preference, not sound quality reference.
Can you read? That's not what the poll asked. It asked if there was any value to it, not being the sole determining approach.