Philharmonic Audio - Dennis Murphy - Page 181 - AVS Forum | Home Theater Discussions And Reviews
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post #5401 of 5415 Old Yesterday, 08:14 PM
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I was thinking about Dennis' comments on the bass and realized that I haven't done rigorous volume matched comparison. This is the 3rd night I run in New Phil and I think its sound is more open up now. After I used the SPL meter (C weighting) and pink noise to match the volume, immediately I realized that the bass amount from NP was NOT any lacking compare to Sierra-1.

The reason why I felt it was lacking in the past 2 nights was due to the volume mismatching. Since NP is slightly less efficient than Sierra. I need to boost about 1.5dB to match but I didn't do a exactly match in the past. Due to the tonality up-tilting of the Sierra-1, NP probably has always produced less SPL even though I "thought" they roughly sound similar by ear.

Tonight after raise the volume up a bit, and I enjoy NP quite a bit tonight. I have got out of "evaluation mode" and started to explored a little bit into my music collection. The tonality of Sierra-1 and New Phil are totally different. Sierra-1 sounds like a teenager and New Phil a mature adult. I am going over my music to be more familiar with NP's sound.

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post #5402 of 5415 Old Yesterday, 08:35 PM
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Quote:
Originally Posted by dukja View Post
I was thinking about Dennis' comments on the bass and realized that I haven't done rigorous volume matched comparison. This is the 3rd night I run in New Phil and I think its sound is more open up now. After I used the SPL meter (C weighting) and pink noise to match the volume, immediately I realized that the bass amount from NP was NOT any lacking compare to Sierra-1.

The reason why I felt it was lacking in the past 2 nights was due to the volume mismatching. Since NP is slightly less efficient than Sierra. I need to boost about 1.5dB to match but I didn't do a exactly match in the past. Due to the tonality up-tilting of the Sierra-1, NP probably has always produced less SPL even though I "thought" they roughly sound similar by ear.

Tonight after raise the volume up a bit, and I enjoy NP quite a bit tonight. I have got out of "evaluation mode" and started to explored a little bit into my music collection. The tonality of Sierra-1 and New Phil are totally different. Sierra-1 sounds like a teenager and New Phil a mature adult. I am going over my music to be more familiar with NP's sound.
Hmmmmmm No one has accused me of being an adult before. The Phil monitors, along with most of my other offerings, are quite low in sensitivity. That's partly due to the drivers I use, part to my preference for deep bass extension over midbass warmth, and part due to more complete baffle step compensation than most other companies use, which results in less output in the 1,000 Hz region. There are plenty of high-sensitivity systems on the market, and many may prefer them for Home Theater. But for dedicated music listening, I've just found that higher quality drivers tend to me lower in sensitivity.
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post #5403 of 5415 Old Yesterday, 08:45 PM
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Thanks again for explain your approach. I always appreciate to be able to know the reason behind.

BTW, what was freq range that you referred to as "mid-bass"? I was not too sure about that.

"Mature adult" in a good way, like a dark chocolate for the Valentine. I hope that goes as a compliment.

Enjoy the voice of Mary Black from New Phil!
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post #5404 of 5415 Old Today, 10:54 AM
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@ dukja - thanks for your comments and review. I haven't heard a lot of reviews of the new Philharmonitor but I'm very interested in them. Keep posting comments!
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post #5405 of 5415 Old Today, 12:00 PM
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Originally Posted by Dennis Murphy View Post
Hmmmmmm No one has accused me of being an adult before. The Phil monitors, along with most of my other offerings, are quite low in sensitivity. That's partly due to the drivers I use, part to my preference for deep bass extension over midbass warmth, and part due to more complete baffle step compensation than most other companies use, which results in less output in the 1,000 Hz region. There are plenty of high-sensitivity systems on the market, and many may prefer them for Home Theater. But for dedicated music listening, I've just found that higher quality drivers tend to me lower in sensitivity.

Have you ever considered creating an efficient speaker geared towards Home Theater?
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post #5406 of 5415 Old Today, 01:58 PM
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Have you ever considered creating an efficient speaker geared towards Home Theater?
Not that Dennis couldn't, but there are a lot of good high efficiency designs out there, both commercially and DIY. I'd like to see a Dennis designed HT speaker, but just so you know there are options out there and very good options.
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post #5407 of 5415 Old Today, 02:06 PM
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Not that Dennis couldn't, but there are a lot of good high efficiency designs out there, both commercially and DIY. I'd like to see a Dennis designed HT speaker, but just so you know there are options out there and very good options.
Yes I am aware. I like Dennis's usage of high quality components and his crossover designs are renowned. I've heard great things about his speakers, especially their value.
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post #5408 of 5415 Old Today, 02:09 PM
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Yes I am aware. I like Dennis's usage of high quality components and his crossover designs are renowned. I've heard great things about his speakers, especially their value.
Jeff Bagby is another great speaker designer who has done both commercial and DIY designs. He has done some high efficiency designs. I have a pair of Phil 3's and I've built two of Jeff's designs. They have similar design goals and are both extremely talented. Dennis may do a high efficiency design, but in the meantime Jeff's designs are excellent as well.
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post #5409 of 5415 Old Today, 03:19 PM
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Originally Posted by Adam James View Post
Have you ever considered creating an efficient speaker geared towards Home Theater?
Go to page 136 of this thread, Philharmonic Audio - Dennis Murphy, start reading at post 4061, and read the next 25 or so posts.
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post #5410 of 5415 Old Today, 04:09 PM
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I powered them up with Rotel RA-970BX (60W) and recapped Pioneer SX-950 (85W). Rotel sounds more lively but Pioneer has more bass volume. Both of them have room to improvement.
Congratulations and thank you for sharing your experience with the new Phils.

I was using a Rotel RA-960BX for over 15 years. It powered the bass section of a bi-amped system, and was totally reliable. On top of that I had made some basic upgrades on the input section - better input coupling caps, supply caps and opamp.

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BTW, I was using my fully balanced headphone system: Sennheiser HD800 power by Audio-Gd's Phoenix class-a amp and Ref-7 DAC as the reference to provide tonality check.
If I recall the Rotel is an early 1990s design.The Pioneer is from the 1980s? If they haven't been recapped, then I imagine they are severely constraining the potential of the speakers. BTW what DAC or source(s) are you using?
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post #5411 of 5415 Old Today, 05:01 PM
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Wasn't Salk going to do some high efficiency speakers? I wonder what happened to that.

Absence of evidence is not evidence of absence

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post #5412 of 5415 Old Today, 08:51 PM
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I was using a Rotel RA-960BX for over 15 years. It powered the bass section of a bi-amped system, and was totally reliable. On top of that I had made some basic upgrades on the input section - better input coupling caps, supply caps and opamp.
Thanks for the note on Rotel. I am pondering change its power cap. From DIYaudio, some people suggest change out the AD827 but others posted no effect. I'll PM you for your experience.

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If I recall the Rotel is an early 1990s design.The Pioneer is from the 1980s? If they haven't been recapped, then I imagine they are severely constraining the potential of the speakers. BTW what DAC or source(s) are you using?
And my Pioneer is totally recapped by myself. It is going strong. I am not familiar with vintage sound but this Pioneer sound more relax and laid back. The stage is also farther than Rotel. It does has more bass puff-ness but I still prefer Rotel's sound. I am looking for some better amp (maybe a little higher wattage). Any suggestion for Dennis' speaker?

My DAC is Audio-GD's DAC19 10yr anniversary version. It is a PCM1704UK R2R DAC.
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post #5413 of 5415 Old Today, 08:52 PM
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Wasn't Salk going to do some high efficiency speakers? I wonder what happened to that.
More than the Exotica's? Those are 92 @2.83v/1m. Not truly high efficiency, but pretty darn good.
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post #5414 of 5415 Old Today, 10:01 PM
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More than the Exotica's? Those are 92 @2.83v/1m. Not truly high efficiency, but pretty darn good.
Check out this thread. Seems to have gone quiet but he had some prototypes.

http://www.audiocircle.com/index.php?topic=132445.0

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post #5415 of 5415 Old Today, 10:56 PM
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Originally Posted by mrlittlejeans View Post
Check out this thread. Seems to have gone quiet but he had some prototypes.

http://www.audiocircle.com/index.php?topic=132445.0
I think those are kind of in limbo. I think they would be excellent for home theater, and better than most high efficiency designs I've heard for music, although I still prefer the lower sensitivity designs for that. Jim and I have worked on a couple of other super high sensitivity prototypes using expensive compression drivers, but we just don't like the sound of those things. They're great for gun shots at 105 dB, but for violins, not so much.
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