World's best midrange Blind Testing - Need your help.

Jump to Latest
#342
Second impression:

There is some of these drivers that sound quite similar. And by similar i mean: i would NOT bet 2 bucks in a blind identification test...

Also, i'm seeing some kind of patterns (that i'm not surprise at all) in which some drivers perform/sound better with some music excerpts.

Still got a surprise: Hok-Man-Yim percussion excerpt. Was expecting the high efficiency to win on that one, but the 10F delivers the best result; more texture, more micro-dynamics, you feel the variations in amplitude, etc..

Next, i'll ''study'' Miles trumpet. 😎
 
#344
http://www.scan-speak.dk/datasheet/pdf/10f-8424g00.pdf

86dB, really ?

Mms 2.77g
Bl 4.8


Once again, i have the strong feeling that we cannot rely on manufacturers specs sheets (cheats?)... Is the Chinese specs are reliable ?

Some seems much overrated while other looks underrated. Sure, that's some kind of butt dyno listening test, but sure it doesnt feel like i'm testing 86db against 100db drivers. Especially NON-EQ!
 
#345
I have the 2-disc Hok-Man set - "Falling Leaves" is good to weed out textures - you can hear some of the coloration with no real damping in the back chamber of this 1955 cabinet - there is only 1/2 cubic foot rear chamber airspace for the 1772 https://www.youtube.com/watch?v=yWnKpr4coPE

I don't think the little cones will do Jack Sheldon from what I've heard from the Vifa - a front horn system will - perhaps 10F can - ?
 
Last edited:
#346
The 10F is between 86 and 87dB according to my measurement and consistent with padding required to level match a woofer I used.

Are you saying you think it is higher? Part of the reason why it may sound louder is that it has flat output up to 16kHz. Are you running fullrange or low pass at 7kHz?
 
Last edited:
#347
xrk971 said:
The 10F is between 86 and 87dB according to my measurement and consistent with padding required to level match a woofer I used.

Are you saying you think it is higher? Part of the reason why it may sound louder is that it has flat output up to 16kHz. Are you running fullrange or low pass at 7kHz?
Click to expand...

420 to 6800hz at this moment.

I'm saying that i think Scan-speak/Visation/serious-bigger manufacturer provides more accurate specs than some other suppliers...

it's only a feeling, i might be wrong. Anyway i don't care much about it because soon i'll EQ and match the SPL.
I'm doing this non-EQed testing only out of curiosity. Like i said previously; for me using an EQ is mandatory. Could'nt live without a DSP anymore. Steep xover slopes + EQ = WIN.
 
#348
xrk971 said:
Your impression is consistent with the results of round 2 from my tests. Also the reason why I chose it as the mid tweet for my 2-way reference monitors. It is flat and needs no EQ. Very neutral yet engaging to listen to for long periods.



We told you so... The 8ohm has even lower distortion and more power handling.
Click to expand...

If you can believe the published graphs on the Peerless TG9, the 8 ohm version (available at Madisound but not Parts Express) has a little more extension at the high end.
 
#349
I wish the Vifa TC9 driver was being looked at too, since it's identicle to the Peerless TG9 except for the cone material and color. Not everyone likes the look of the TG9 light gray cone with black dust cover. It looks a little bit like an eyeball.

The TG has a smoother FR than the TC, according to the published spec, but it would be interesting to see what it really looks like from someone who isn't trying to sell it.
 
#350
The TG9FD is pure white cone not light grey. The basket has 3 legs rather than 4 like TC9FD and the VC former appears to be made of aluminum or brass. There is also more open venting on the spider on the TG9FD. It has a few more tweaks I suppose in addition to the fiberglass cone. Also, the TG9FD doesn't come with the unsightly foam gasket glued to the front bezel.

The dust cap appears to be black treated paper on both.
 
#352
1772

freddi said:
I have the 2-disc Hok-Man set - "Falling Leaves" is good to weed out textures - you can hear some of the coloration with no real damping in the back chamber of this 1955 cabinet - there is only 1/2 cubic foot rear chamber airspace for the 1772 https://www.youtube.com/watch?v=yWnKpr4coPE

I don't think the little cones will do Jack Sheldon from what I've heard from the Vifa - a front horn system will - perhaps 10F can - ?
Click to expand...

Hi Fred,

The 1772 flat out plays wonderful music. Shunned by some because of the whizzer. A tad bit of recessed response in the 1.0-1.6 Khz range, but suits my ears because I am sensitive to this sometimes GRATING range. Not perfect, but just plays the music.

best regards, Scott L
 
#353
Hi Scott - 1772 is good for a fullrange😀 - I need to figure out the best overall K-coupler (if any) for it. Back to this thread - some speakers need to be able to produce a lot of peak power to sound "real" - guess the way recordings are made and compressed that its not much of an issue with regular music releases. The little Vifa are good - but they're "little"😀

hey XRK971 - re: the PRV5 - did you measure significant on-axis rise? - that could help with some horns
-the vertical scales are presented a bit different below but PRV's data on the 4ohm unit has some
roughness at its top - I've not seen the 8ohm 5" for sale

be nice if they include 20 and 30 off axis traces

8ohm version
cHKYhkm.jpg

4ohm version
DB2EdMC.jpg
 
Last edited:
#354
Bob Richards said:
If you can't use a midrange driver up to at least 7kHZ, then you can't keep crossover points outside of the F range where the ear is most sensitive (800HZ - 6kHZ), and the range where virtually all effective stereo imaging is done (since interaural crosstalk will confuse imaging below about 800HZ).
Click to expand...

Doesn't bother me in the least and crossing at 7kHz adds in significant compromises in and of itself.

Poorly designed xovers make for poor sounding loudspeakers, of which there are many. If, with careful driver selection, you botch the xover at 7kHz then it is going to have less sonic impact than if you both it at 2kHz.

If you design an excellent crossover at 2kHz though it does not screw with imaging.
 
#357
freddi said:
Hi Scott - 1772 is good for a fullrange😀 - I need to figure out the best overall K-coupler (if any) for it. Back to this thread - some speakers need to be able to produce a lot of peak power to sound "real" - guess the way recordings are made and compressed that its not much of an issue with regular music releases. The little Vifa are good - but they're "little"😀

hey XRK971 - re: the PRV5 - did you measure significant on-axis rise? - that could help with some horns
-the vertical scales are presented a bit different below but PRV's data on the 4ohm unit has some
roughness at its top - I've not seen the 8ohm 5" for sale

be nice if they include 20 and 30 off axis traces

8ohm version
cHKYhkm.jpg

4ohm version
DB2EdMC.jpg
Click to expand...

Wow the 4ohm version looks rough on top. My 8ohm measures very similar to factory curve. They are available at PE for $100 ea.

Where did you get that response plot for the 4ohm ? Because the one in PE website shows a much smoother response with a rising response at HF's.

http://www.parts-express.com/pedocs/specs/294-2704--prv-audio-5mr450-ndy-4-specifications.pdf
 
Last edited:
#360
xrk971 said:
The TG9FD is pure white cone not light grey. The basket has 3 legs rather than 4 like TC9FD and the VC former appears to be made of aluminum or brass. There is also more open venting on the spider on the TG9FD. It has a few more tweaks I suppose in addition to the fiberglass cone. Also, the TG9FD doesn't come with the unsightly foam gasket glued to the front bezel.

The dust cap appears to be black treated paper on both.
Click to expand...
I'll be darn, I never noticed the 3 legs rather than four on the TG9. Brass is too heavy for a voice coil. Maybe anodized aluminum (?). Thanks for the info.
 
You must log in or register to reply here.
Top Bottom