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Which speaker driver shows the best measurements?

sloth_kwj

sloth_kwj

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I want to make Hall Of Fame(without price/performance) available in market.

Let’s assume tweeters are in nice waveguide. So not considering off-axis FR.

Tweeter :
Midrange :
Woofer 6inch : Purifi ptt6.5 (?)
woofer 8inch :
SubWoofer :
 
sloth_kwj said:
I want to make Hall Of Fame(without price/performance) available in market.

Let’s assume tweeters are in nice waveguide. So not considering off-axis FR.

Tweeter :
Midrange :
Woofer 6inch : Purifi ptt6.5 (?)
woofer 8inch :
SubWoofer :
Click to expand...

Judging from the what's being argued in this thread, any reasonably flat FR driver or which can easily be coaxed with a notch filter used within its optimal operating range will do.
As long as it Spins right you're fine.
You won't even need a 5-way, two is fine.

I don't agree, but then who am I to challenge the mighty guardians of the "Science"?
 
Last edited:
sloth_kwj said:
I want to make Hall Of Fame(without price/performance) available in market.

Let’s assume tweeters are in nice waveguide. So not considering off-axis FR.

Tweeter :
Midrange :
Woofer 6inch : Purifi ptt6.5 (?)
woofer 8inch :
SubWoofer :
Click to expand...
Unfortunately the best drivers aren't simply marked as best in size. That's because it really depends on the design features you're after. Linearity, sensitivity, used bandwidth/XO frequency, closed or BR/PR box, size (internal volume), power tolerance etc. There are more but these I can think of right now.

It's most of time a balance between the above properties. Ofcourse there are some which do more better than others, but as many have said before: it's more about how you use the driver in the complete system, than the individual properties of a driver.
 
Based off available Hi-Fi Compass measurements and caring about off-axis, distortion, and to an extent sensitivity & on-axis linearity (not needing much work).
”Budget” being <$100/ea

Tweeters
BlieSMa 34A & 34B:
https://hificompass.com/en/speakers/measurements/bliesma/bliesma-t34a-4
https://hificompass.com/en/speakers/measurements/bliesma/bliesma-t34b-4
Accuton C30-6-024:
https://hificompass.com/en/speakers/measurements/accuton/accuton-c30-6-024

Budget kings
Peerless BC25TG15-04 (used in Dennis Murphy’s AAM):
https://hificompass.com/en/speakers/measurements/peerless/peerless-bc25tg15-04
Hi-Vi K1 & Q1R:
https://hificompass.com/en/speakers/measurements/hi-vi-research/hi-vi-k1
https://hificompass.com/en/speakers/measurements/hi-vi-research/hi-vi-q1r

Midranges
SBacoustics SB12CACS25-4:
https://hificompass.com/en/speakers/measurements/sbacoustics/sb-acoustics-sb12cacs25-4

Budget King
Tectonic TEBM46C20N-4B (used in Dennis Murphy’s BMR):
https://hificompass.com/en/speakers/measurements/tectonic/tectonic-tebm46c20n-4b
Dayton RS52AN-8:
https://hificompass.com/en/speakers/measurements/dayton-audio/dayton-audio-rs52an-8
Peerless TC9FD18-08:
https://hificompass.com/en/speakers/measurements/peerless/peerless-tc9fd18-08
Vifa RS125-4 (1000Hz-3000Hz usage, good pairing for AMT/ribbons; low sensitivity, so go D'Appolito):
https://hificompass.com/en/speakers/measurements/vifa/vifa-tc6fc00-04

Midwoofers
Purifi PTT6.5W04-01A:
https://hificompass.com/en/speakers/measurements/purifi/purifi-ptt65w04-01a


Woofers
Not sure

Budget King
SBacoustics SB23NRXS45-8:
https://hificompass.com/en/speakers/measurements/sbacoustics/sb-acoustics-sb23nrxs45-8
 
Last edited:
MZKM said:
Based off available measurements and caring about off-axis, distortion, and to an extent sensitivity & on-axis linearity (not needing much work):

Tweeters
BlieSMa 34A & 34B:
https://hificompass.com/en/speakers/measurements/bliesma/bliesma-t34a-4
https://hificompass.com/en/speakers/measurements/bliesma/bliesma-t34b-4
Accuton C30-6-024:
https://hificompass.com/en/speakers/measurements/accuton/accuton-c30-6-024

Budget kings
Peerless BC25TG15-04 (used in Dennis Murphy’s AAM):
https://hificompass.com/en/speakers/measurements/peerless/peerless-bc25tg15-04
Hi-Vi K1 & Q1R:
https://hificompass.com/en/speakers/measurements/hi-vi-research/hi-vi-k1
https://hificompass.com/en/speakers/measurements/hi-vi-research/hi-vi-q1r

Midranges
SBacoustics SB12CACS25-4:
https://hificompass.com/en/speakers/measurements/sbacoustics/sb-acoustics-sb12cacs25-4

Budget King
Tekton TEBM46C20N-4B (used in Dennis Murphy’s BMR):
https://hificompass.com/en/speakers/measurements/tectonic/tectonic-tebm46c20n-4b
Dayton RS52AN-8:
https://hificompass.com/en/speakers/measurements/dayton-audio/dayton-audio-rs52an-8


Midwoofers
Click to expand...
Thanks. I have to check Dayton and Tekton
 
Saddens me to not see any mention of scanspeak products here. Scanspeak makes some of the best speakers available. Their Illuminator line is known for their (Klippel verified) linear excursion with tamed breakup modes outside the typical passband. The 18wu midwoofer has the highest linear excursion of any 7-inch I have seen to date, with about 9mm one-way linear per IEC 62458 .

The Purifi mentioned already is a great option.
 
MZKM said:
Based off available Hi-Fi Compass measurements and caring about off-axis, distortion, and to an extent sensitivity & on-axis linearity (not needing much work).
”Budget” being <$100/ea

Tweeters
BlieSMa 34A & 34B:
https://hificompass.com/en/speakers/measurements/bliesma/bliesma-t34a-4
https://hificompass.com/en/speakers/measurements/bliesma/bliesma-t34b-4
Accuton C30-6-024:
https://hificompass.com/en/speakers/measurements/accuton/accuton-c30-6-024

Budget kings
Peerless BC25TG15-04 (used in Dennis Murphy’s AAM):
https://hificompass.com/en/speakers/measurements/peerless/peerless-bc25tg15-04
Hi-Vi K1 & Q1R:
https://hificompass.com/en/speakers/measurements/hi-vi-research/hi-vi-k1
https://hificompass.com/en/speakers/measurements/hi-vi-research/hi-vi-q1r

Midranges
SBacoustics SB12CACS25-4:
https://hificompass.com/en/speakers/measurements/sbacoustics/sb-acoustics-sb12cacs25-4

Budget King
Tectonic TEBM46C20N-4B (used in Dennis Murphy’s BMR):
https://hificompass.com/en/speakers/measurements/tectonic/tectonic-tebm46c20n-4b
Dayton RS52AN-8:
https://hificompass.com/en/speakers/measurements/dayton-audio/dayton-audio-rs52an-8
Peerless TC9FD18-08:
https://hificompass.com/en/speakers/measurements/peerless/peerless-tc9fd18-08
Vifa RS125-4 (1000Hz-3000Hz usage, good pairing for AMT/ribbons; low sensitivity, so go D'Appolito):
https://hificompass.com/en/speakers/measurements/vifa/vifa-tc6fc00-04

Midwoofers
Purifi PTT6.5W04-01A:
https://hificompass.com/en/speakers/measurements/purifi/purifi-ptt65w04-01a


Woofers
Not sure

Budget King
SBacoustics SB23NRXS45-8:
https://hificompass.com/en/speakers/measurements/sbacoustics/sb-acoustics-sb23nrxs45-8
Click to expand...

The Dayton RS52AN-8 may have to come off the list; measurements of more recent drivers have shown problems:
http://www.htguide.com/forum/showthread.php?33490-Driver-Evaluations-for-a-new-project/page10
(Posts 322-326)
 
hardisj said:
Saddens me to not see any mention of scanspeak products here. Scanspeak makes some of the best speakers available. Their Illuminator line is known for their (Klippel verified) linear excursion with tamed breakup modes outside the typical passband. The 18wu midwoofer has the highest linear excursion of any 7-inch I have seen to date, with about 9mm one-way linear per IEC 62458 .

The Purifi mentioned already is a great option.
Click to expand...
Looking only at those measured by HiFiCompass, they are good (better than equivalent SEAS models if I recall), but I don't remember finding one where I couldn't find better/cheaper offering from another brand.
 
MZKM said:
Looking only at those measured by HiFiCompass, they are good (better than equivalent SEAS models if I recall), but I don't remember finding one where I couldn't find better/cheaper offering from another brand.
Click to expand...

Find a 7-inch midwoofer with (Klippel verified) 9.1mm one-way linear excursion at the (standard) 10% THD/IMD limit (per IEC 62458) like the Scan 18wu.

I'll wait. ;)

(p.s.: the Purifi doesn't even do that)
 
When 'cheaper' comes into it you need to be specific about location - some of these have major price differences and/or availability issues depending on where you are.
 
MZKM said:
Like I said, looking only at those measured by HiFiCompass.
Click to expand...

HFC doesn't offer excursion testing, either.

And, unfortunately, the IEC 62458 method isn't used widely. So many mfg's will state "linear" excursion, but that is based on geometry of voice coil vs gap height and/or +10% delta.

FWIW, every SB Acoustics driver I have tested to date clocks in at about HALF of their spec'd one way "linear" excursion, one-way. Scanspeak is one of the few companies who reliably tests at (or even above) their spec.

I have tested probably close to 100 drive units. I would never shy away from a Scanspeak product based on my experience.
 
The right concept is more important than selecting a good or superior speaker driver.

Following some of my usual recommendations:

# Tweeter
Seas-DXT
Beyma TLP150H
BMS compressions drivers

# Mid
Tang Band 75-1558SE
Dayton RS52

# Midwoofer
Wavecor WFxxxBDxx
Scan-Speak Discovery
Seas L16RNX3, L19RNX1, ER18RNX; ER15RLY
SB-Acoustics NBAC

#Woofer/ Sub:
Scan Speak 30W4558T00
Scan Speak 26W4558T00
SB-Acoustics SW26DBAC76 (shallow)

In addition PHL-Audio and B&C-Speaker also have some nice speaker drivers..
 
hardisj said:
HFC doesn't offer excursion testing, either.
Click to expand...
Doesn’t THD at different levels tell you a decent amount?
IMD testing has also been done for recent woofers.

AudioXpress uses the Klippel driver analyzer device, but I never know how to read those graphs, other than I guess the more symmetrical the better.
For instance:
https://audioxpress.com/article/test-bench-the-seas-l19rnx1-prestige-titan-series-woofer

20201001200700_Figure4-SEAS-L19RNX1PrestigeTitanWoofer.png

20201001200700_Figure5-SEAS-L19RNX1PrestigeTitanWoofer.png

20201001200947_Figure6-SEAS-L19RNX1PrestigeTitanWoofer.png

20201001200947_Figure7-SEAS-L19RNX1PrestigeTitanWoofer.png

20201001200947_Figure8-SEAS-L19RNX1PrestigeTitanWoofer.png

20201001200947_Figure9-SEAS-L19RNX1PrestigeTitanWoofer.png


No clue if this is good or bad.
 
Last edited:
hardisj said:
FWIW, every SB Acoustics driver I have tested to date clocks in at about HALF of their spec'd one way "linear" excursion, one-way. Scanspeak is one of the few companies who reliably tests at (or even above) their spec.
Click to expand...

Which SB woofers have you tested? I saw the Satori MW13P on your website, but none of the regular SB woofers...
 
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