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1970's Pioneer Drivers...
1970's Pioneer Drivers...
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Old 8th April 2009, 10:00 AM   #1
inrank is offline inrank  United Kingdom
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Default 1970's Pioneer Drivers...

anyone heard of, or have any info on some 1970's Pioneer PAX-25B drivers?
They seem to be a coaxial 2 way affair...

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Old 8th April 2009, 02:31 PM   #2
Viridian is offline Viridian  United States
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I have the coax PAX-30G's and they are quite amazing. The sweetest horn tweeters I have and the woofers have very low and tight bass. The only problem for me is that they are a bit low Qts for OB use, which I favour. But, factor in 103dB/W and digital domain EQ in iTunes and you can shelve/boost to get what you want. I'm amazed at what these drivers can do. Very detailed and dynamic.

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Old 9th April 2009, 02:51 AM   #3
tomtt is offline tomtt
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1970 Q 1972 S PAX-25B Speaker, Full Range 20w
1966 M 1966 M PAX-25F Speaker, Full Range 20w

from here -



Click the image to open in full size.

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Old 9th April 2009, 10:11 AM   #4
inrank is offline inrank  United Kingdom
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Thanks, still not found any T/S specs at all, i guess they are quite efficient, like their model brothers.
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Old 14th April 2009, 12:55 PM   #5
inrank is offline inrank  United Kingdom
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All i have found is -

Fo - 20,000Hz
Fs - 40-50Hz
Impedance - 8 Ohms
Power - 20w
SPL - 102 (dB/w)

They seem similar to the PAX-30B and PAX-20A in terms of the tweeter

What do you think they are worth? as a Blind punt and a bit of fun
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Old 14th April 2009, 03:07 PM   #6
dublin78 is offline dublin78  United Kingdom
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10??? for fun.
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Old 5th February 2014, 02:31 AM   #7
Pepe is offline Pepe  Sweden
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Been eyeing a pair of pioneer pax-30a drivers for a wile now. After some searching on the net found this info.
"The PAX-A30 12 inch driver is driven fullrange. The horn tweeter is crossed over at 3kHz
These superb drivers have massive 12.5 pound magnets Sensitivity 95dB 8 ohm. Circa 1974"
From this page: VintageAudioWorld.com - Speakers
So wich is it 95db or 102db sensitivity?
Good driver for open baffle or to low Q for that?
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Old 5th February 2014, 03:44 AM   #8
GM is offline GM  United States
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~95 dB/W/m according to this: Pioneer PAX-A30

Fairly low Q, appears to be an Altec 601 'wannabe', so depending on what you drive it with it probably can be used in whatever alignment you want.

Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
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Old 13th February 2014, 11:28 PM   #9
croweproductions is offline croweproductions  Canada
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I had the pax-20e for 2 years and loved them. They are a great value because nobody knows about them. They are tone monsters with amazing vocals. I had to EQ a 1khz peak out of it so it wouldnt sound like an AM radio, but once dialed in, they sound fantastic. I later switched to a passive notch filter because i was getting more into vinyl and couldnt rely on my itunes/pure music EQ. Even though they are effecient, they are 16 ohm, which halves the output depending on how your amp handles the load. But when i switch to my Fostex Fe163en-s which is rated at 95db, they were about the same loudness with my 10wpc tube amp. The fostex loses some tone(i contribute tothe pax's alnico) but makes up for in increased dynamics and overall output/power handling.
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Old 12th June 2017, 05:41 AM   #10
maxchau is offline maxchau
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I picked up a pair of these locally a couple months ago. These speakers are amazingly musical. Driven by 1.5W PSE 6W1 tube amp with a Russian 12Z1L SRPP pre and tube dac and tube usb-spdif converter from Ukraine. A pair of Monitor Audio Radius 360 8" subs reenforce the low end. The sound is completely top notch. I sold the Altec Model 15 right after. Leaving them free air is not a issue and is louder than I want at times. Very airy, detail and sounding very close to the real thing (organic). You may say I am totally convinced.

I used to own Soundlab 3, ML CLS, Mag various models, Legacy Focus, Infinity Res 90, Ess 3 rock monitor (still own) Apogee Slant 6, Accoustat 1100. So point of reference is plenty. I am not saying it outperforms all of them but it is definitely the most musical to my experience.

The key is to use the best upstream and it will reward the user with upmost satisfaction. Anything heard that you don't like is most likely not from these PAX A30s.
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