Wolfmother
Member
thank you for sharing, tom
JBL 100t vs. HPM 100
- Thread starter Wolfmother
- Start date
Just in case anyone was waiting with baited breath for my opinion Wolf. 
I can understand the bass being better on the JBL's but the highs being rolled off on the HPM's is news to me. I've never heard anyone complain about that. Maybe they need a recap, are having a tweeter issue or maybe the L-Pad for the tweeters need cleaning or are not functioning properly. It definitely warrants investigation imo.
Glad to hear you like the JBL's though. I've never heard the L100t's but I've heard the Century L100's and they really rock. :guitar:
Enjoy,
Paul
Wolfmother
Member
of course tom, no offense, 
. and paul, the hpm's do not sound rolled off by themselves, only compared to the JBL 100t's, to clarify my earlier statement.
. and paul, the hpm's do not sound rolled off by themselves, only compared to the JBL 100t's, to clarify my earlier statement.
What is your analysis of the response curves?
From an earlier discussion here, these appear to be the factory spec, though I don't know the source for certain:
of course tom, no offense,
I just wanted to make sure that there was not a problem with your HPM-100's. Thanks for clarifying.
Enjoy those JBL's.
Paul
What is your analysis of the response curves?
From an earlier discussion here, these appear to be the factory spec, though I don't know the source for certain:
Hi Zilch,
What I see from the graphs is a hump in the frequency response between about 1.6kHz to ~15kHz rather than a roll-off of the high frequencies. This hump has been one of the complaints about this speakers design. It's also what gives the HPM-100 it's forward sound. Some call them bright sounding. I personally prefer that to a speaker that is virtually flat in response. All a matter of preference and how your ears perceive the given sound. :yes:
Paul
dnewma04
The Healer
Zilch,
What I see is a more benign impedance plot than I would have expected and a freg response plot that off axis i'd like to see at about 15 degrees but as is has very forward upper mids and lower treble. After that, depending on what is being referenced, could easily be construed as rolled off highs. IF the speaker was 90db sensitivity speaker, it would have extension to close to 20khz with a very broad shelf from 2k to 13k. I'd expect a perception of remarkable detail on axis, probably "shouty" with more laid back response at15 -20 degrees off axis. I can also understand why some might like these better stacked. The FR lends itself well to the comb filtering effects that would be encountered by doing so.
Did I pass?
What I see is a more benign impedance plot than I would have expected and a freg response plot that off axis i'd like to see at about 15 degrees but as is has very forward upper mids and lower treble. After that, depending on what is being referenced, could easily be construed as rolled off highs. IF the speaker was 90db sensitivity speaker, it would have extension to close to 20khz with a very broad shelf from 2k to 13k. I'd expect a perception of remarkable detail on axis, probably "shouty" with more laid back response at15 -20 degrees off axis. I can also understand why some might like these better stacked. The FR lends itself well to the comb filtering effects that would be encountered by doing so.
Did I pass?
Oooooo...peer pressure. Ok, I'll go.
I agree that the upper mid hump/mountain range would make for a very "forward" sounding speaker and I would tend to call the higher treble rolled off. At 18kHz it's almost 10dB down from the 3 octaves below that. I would think that would take the "air" out of cymbals and upper harmonics on piano, etc.
Personally, I don't like the raised upper mids. Get somebody with a honky, nasally high voice and I'll bet you could peel paint with them. Somebody with HPM100's find a sample of Adie Grey and see what you think.
I agree with Dave that 15 degrees off axis is probably pretty mellow sounding (depending on room effects, of course) but the upper end is down even further so they might be too mellow if you point them straight ahead and sit between them.
Dang it, now I need to find somebody close who has some so I can see how close we are with this exercise.
Ray
I agree that the upper mid hump/mountain range would make for a very "forward" sounding speaker and I would tend to call the higher treble rolled off. At 18kHz it's almost 10dB down from the 3 octaves below that. I would think that would take the "air" out of cymbals and upper harmonics on piano, etc.
Personally, I don't like the raised upper mids. Get somebody with a honky, nasally high voice and I'll bet you could peel paint with them. Somebody with HPM100's find a sample of Adie Grey and see what you think.
I agree with Dave that 15 degrees off axis is probably pretty mellow sounding (depending on room effects, of course) but the upper end is down even further so they might be too mellow if you point them straight ahead and sit between them.
Dang it, now I need to find somebody close who has some so I can see how close we are with this exercise.
Ray
JJJimmy
Silver is Sweet!
There seems to be an element of that, yes. The supertweeters are a bit of a ruse crossed in at 12 kHz. It'd be interesting to see the response without them there.
Anybody have the crossover schematic?
Duffinator
Spin The Black Circle
The pair I owned were not mirror imaged and I don't think they came that way. How about an explanation as to why they should be?
