Low rent loudspeaker driver alert! :-)

mhardy6647mhardy6647 Posts: 15,300
edited November 27 in Speakers
One notes that good ol' PartsExpress is selling the Goldwood 8" twincone for 10 US Samoleums a pop through Wednesday this week.

https://www.parts-express.com/grs-8fr-8-full-range-8-speaker-pioneer-type-b20fu20-51fw--292-430

qi6wz0dyqhcb.png

Are these great drivers? No.
Are they great $10 drivers? Not particularly.
Is there fun to be had (e.g., on open baffles) for $20 invested in a pair? Very possibly.

YMMV, though, of course.

Yes, I do have a pair -- someplace. They're... interesting.

Figured it worthy of mention, so mention it I have.

:)
"Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

Comments

  • pitdogg2pitdogg2 Posts: 8,115
    Oh so you got stuck with some cr a pp y drivers and figured you fish someone else so you wouldn't be alone in that endeavor :o


















    Kidding :p
  • Viking64Viking64 Posts: 754
    "I'm an excellent driver." -Raymond "Rainman" Babbitt
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  • westmassguywestmassguy Posts: 5,797
    Me like whizzer cones
    Home Theater/2 Channel:
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    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • FestYboyFestYboy Posts: 913
    Those (in an appropriately sized enclosure) plus the great knob of deliciousness... And tubes...= Magic.
  • nbrowsernbrowser Posts: 7,019
    FestYboy wrote: »
    Those (in an appropriately sized enclosure) plus the great knob of deliciousness... And tubes...= Magic.

    I'm gonna build the Sugary Knob...it'll be bigger and sweeter than the deliciousness knob!
    Living room: Samsung UN55KU7000 4K UHD HDR 55 inch TV, Marantz CD6004, Pro-Ject Debut Carbon, Parasound zPhono, Mac Mini, Oppo BDP-93, XBox One S 2Tb, Kenwood DPX792BH car deck for radio purposes, Marantz SR5010 AVR, Parasound HCA-1200II, Front SDA 2 modded with Larrys Rings and RD0-194-1 tweeters, Rear Onkyo SKF-4800 Towers, Center CSiA6, BOOM Tannoy TS2.12 Sub, Audioquest Evergreen interconnects just about everywhere except from AVR to amp, MIT Terminator 4, MIT AVT3 speaker cables with extra terminals covered up Monitor 5 Jr+ in the wings for a center channel.
  • mhardy6647mhardy6647 Posts: 15,300
    edited November 29
    nbrowser wrote: »
    FestYboy wrote: »
    Those (in an appropriately sized enclosure) plus the great knob of deliciousness... And tubes...= Magic.

    I'm gonna build the Sugary Knob...it'll be bigger and sweeter than the deliciousness knob!

    Stupid but true story.

    The OTA TV broadcasting in Baltimore was (maybe still is? I dunno) centered on a tall "candelebra" tower located on a hill near Druid Hill Park and the city zoo (known in Bawlmerese as "Droodle Park") & the Hampden neighborhood in the city of Baltimore. All three of the network stations had their broadcast facilities there, and their studios nearby. The area was thus known as "TV Hill".

    One of those stations, WBAL, was allied with an AM radio station, WBAL-AM. WBAL-AM broadcasts at 1090 kHz, a 50 kW "clear channel" station heard over most of the northeast (and other places, too) at night.

    WBAL used to describe their studio location (on or near "TV Hill") as "Radio Knob".

    :)
    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

  • FestYboyFestYboy Posts: 913
    That facility still exists and is in operation. I pull digital OTA channels from there.
  • mhardy6647mhardy6647 Posts: 15,300
    I figured it was but I haven't been down that-a-ways for a while.
    Heck, my father, a TV repair person, used to buy parts from a distributor in the shadow of that big ol' tower (Kann-Ellert Electronics). They're long gone.
    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

  • ken brydsonken brydson Posts: 6,563
    mhardy6647 wrote: »
    Heck, my father, a TV repair person, used to buy parts from a distributor in the shadow of that big ol' tower (Kann-Ellert Electronics). They're long gone.

    HT/Main- Panny 50" G10 Plasma, Pioneer SC-1222k AVR, Panny DMP-BD60 BDP, Polk LS90 mains, CS350LS center, LS/fx side surrounds, LS50 surround backs, SVS 25-31PC+ sub, Harmony One

    Office Rig- Marantz 2252B, Denon 2910, Kenwood KD2070 TT, Polk RTA 12B's/ RTA8t
  • Polkaguy58Polkaguy58 Posts: 281
    That's funny, I'd been looking at those a while back, as I'd tried unsuccessfully to make a Fostex 6 1/2" full range speaker system before, but just couldn't handle the midrange honk that came from those drivers.
    I had a friend who made some nice one's out of the 8" Fostex drivers, but they were the size of a small refridgerator !
    I had to resign myself to the fact that I just don't have the room for a propper full range set up.
  • mhardy6647mhardy6647 Posts: 15,300
    some of the Fostexes are more pierce-y than others.

    IF (if!?!) you can find a pair of the discontinued FE-207E drivers, they're better behaved than some of the Fostexes and will perform adequately in a small BR box. Barely, but adequately.

    9598891997_cb427c3552_z.jpgDSC_5663 by Mark Hardy, on Flickr

    (dang, I wish this room still was that clean and spare!)
    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

  • FestYboyFestYboy Posts: 913
    Id be glad to take some of the "junk" that has taken residence in that room for you... As an act of good will to get back the the clean and sparse state as seen in the picture. o:)
  • DaveHoDaveHo Posts: 1,570
    That must have been move in day. I can't ever recall seeing your room that empty!
  • msgmsg Posts: 3,502
    mhardy6647 wrote: »
    (dang, I wish this room still was that clean and spare!)
    nhbpdcfc9b50.jpg
  • Polkaguy58Polkaguy58 Posts: 281
    some of the Fostexes are more pierce-y than others.

    IF (if!?!) you can find a pair of the discontinued FE-207E drivers, they're better behaved than some of the Fostexes and will perform adequately in a small BR box. Barely, but adequately.

    I kind of like to mess around with old 4" full range drivers when I get the urge.
    Usually I'll run into a pair of 70's Radio Shack Solo 1's at a tag sale and buy them for the banana pulp Foster drivers, with the little screened hole in the center cap.
    I've dropped those drivers into many donor boxes (like an old pair of Minimus 7's for example).
    Someone once gave me a pair of Mirage Omnisat egg shaped speakers that he'd blown and I stuck a pair of those drivers in there and removed the tweeter, creating full range holographic sound rear channels that actually sounded great with my Polk Monitor 5's !
  • mhardy6647mhardy6647 Posts: 15,300
    The drivers of which you speak are - presumably - OEM versions of the venerable (and still in production) Fostex FE-103. The AlNiCo magnet versions have a particular cachet. :)

    You probably knew all of that :)

    Did you ever try the ol' Damar (or, as some would have it, Dammar) varnish damping technique on the paper cone, ceramic magnet descendants of those drivers (i.e., the R/S 40-1197 4" FR drivers)? :)

    On this topic :neutral: --
    and FWIW...
    my favorite-est cheap driver ever were the Pioneer-branded OEM 4" FR drivers sold for some while on clearance by PartsExpress under their part number 269-469. These drivers became known in some circles as the "69 cent wonders because, towards the end, that was their going price. They are phenomenally good sounding little drivers, top to bottom (no kidding).

    I wish I'd have bought more of them when they were around. I still have... a few :/ but not as many as I wish I would.

    32805517572_babed2ff59_h.jpgDSC_7032 (2) by Mark Hardy, on Flickr
    32144924153_4884d91a98_h.jpgDSC_7031 (2) by Mark Hardy, on Flickr


    Our son built these in high school as part of a science fair project :)

    11531710354_69a241cb49_b.jpg269-469BR by Mark Hardy, on Flickr

    29620662235_2e2d1a2572_h.jpgDSC_5788b by Mark Hardy, on Flickr
    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

  • mhardy6647mhardy6647 Posts: 15,300
    heh -- you got me goin'... :/

    http://ratch-h.com/69centwonder.html
    http://ratch-h.com/farm.html

    5uddthlgjv9r.png

    ryfx95utladr.png

    a proud young woman and her loudspeaker(s):

    lnfr1xljuoxr.png

    075bwd5ksnq6.png


    I did, one warm summer day years back, and just for shoots and Googles, build a pair of 1 x 8 open baffle line arrays with these drivers. They sounded... interesting.

    A Bessel array might be a better way to go.

    :)

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

  • Polkaguy58Polkaguy58 Posts: 281
    Oh to have that much real estate !
    It's probably a good thing that I live in a small apartment, because there's no little woman to tell me NO when I find stray speakers that want to come home with me.
  • JLSticeJLStice Posts: 28
    @mhardy6647
    mhardy6647 wrote: »
    I figured it was but I haven't been down that-a-ways for a while.
    Heck, my father, a TV repair person, used to buy parts from a distributor in the shadow of that big ol' tower (Kann-Ellert Electronics). They're long gone.

    We lost our last hold-out of a real electronics store in Baltimore last turn of the year:
    https://www.facebook.com/Baynesville-Electronics-109976629042766/
    Gonna miss that place, and real people with know-howc, and just poking around at all the niftys.

    We still have lots of Arrows and the like around, but that's more construction and industrial and half of them wouldn't know a discrete component if it bit em...
  • Viking64Viking64 Posts: 754
    Towson! That's where John Waters is from. :p
    Polk SDA SRS 2.3TL
    Silk Audio MS38SE Tube Amp
    Yamaha DSP A-1 AV Amp
    Panasonic TC-P65S2 Plasma TV
  • mhardy6647mhardy6647 Posts: 15,300
    Went to high school in Towson (well, nominally Towson... close by, at any rate).
    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

  • Viking64Viking64 Posts: 754
    mhardy6647 wrote: »
    Went to high school in Towson (well, nominally Towson... close by, at any rate).

    You weren't there when that nun was murdered, were you? :#
    Polk SDA SRS 2.3TL
    Silk Audio MS38SE Tube Amp
    Yamaha DSP A-1 AV Amp
    Panasonic TC-P65S2 Plasma TV
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