Dayton 8" Full Range Open Back with Eminence 15" Powered Sub - $300/pr

0 Members and 1 Guest are viewing this topic. Read 7187 times.

FredT300B

  • Full Member
  • Posts: 542
Sold  These speakers are every flea power SET tube amp enthusiast's dream: high sensitivity, a benign impedance load, surprisingly flat frequency response from 40hz to 20khz with no distracting treble peaks, open dipole soundstage, with deep powerful bass. When most full range single driver speaker enthusiasts say a speaker has good bass, they mean it actually has some output below 60hz. Not these. The powered 15" Eminence woofers produce tuneful pipe organ bass you can feel down into the high 30's!

I've enjoyed these for about a year, and now it's time to sell them to move on to a new project. These speakers incorporate an open back Dayton Audio PS220-8" full range point source driver with an H-frame Eminence Alpha 15 subwoofer. The subwoofers are driven by their own dedicated 70w Audiosource plate amps, which are included. The full range drivers are 95.6dB sensitivity, making these speakers an especially good match for flea power single ended triode tube amps. My 3.5 watt 2A3 amp drives them to room filling volume levels. The Dayton drivers run full range from their natural dipole rolloff at about 200hz. A parallel notch filter is included in the signal path to tame these drivers' peak at 3.6khz. The Eminence drivers fill in from 180hz down to about 38hz. 

I'm offering them for $400, which is less than it would cost to build your own pair. Sorry, no shipping. These are for local pickup only at my house in Houston, Texas. They will fit into the back seat of a mid size car like my Nissan Altima. Reduced to $300 $250.




« Last Edit: 24 Jul 2015, 03:17 pm by FredT300B »

FredT300B

  • Full Member
  • Posts: 542
BUMP These high sensitivity dipole speakers are still available for only $400 cash (or check) and carry from Houston, Texas. The Dayton Audio open back full range drivers are remarkably accurate and clear from 200hz to 20khz, and the H-Frame Eminence woofers provide palpable bass below 200hz. They are pictured here just as they appeared at the 2013 Lone Star Audio Fest, driven by Oddwatt Audio OddBlock KT88 amplifiers.




pandpliers

  • Jr. Member
  • Posts: 12
Pm sent.

FredT300B

  • Full Member
  • Posts: 542
Still available for pickup in Houston. Includes speakers and two subwoofer plate amps. $400  :thumb:

skeeter99

Oh man I want these! Too bad I'm in Seattle! Ugh ... Any high res pics you can post just to make me drool more? Or feel free to PM me and send me some to my email :D I've seen your craftsmanship in other threads and undoubtedly these are up to the same standards. GLWS!

Scott

FredT300B

  • Full Member
  • Posts: 542
AN UNBELIEVABLE OFFER FROM FRIENDLY FRED :D

Reduced to only $386 for the pair, which is the price of the drivers alone! This driveaway special includes the painted and fully assembled enclosures, 8" dipole Dayton Audio single drivers, 15" Eminence Alpha 15A H-frame dipole subwoofers, and two Audiosource subwoofer plate amps. Still for local pickup only in Houston. Their sensitivity is the 95dB sensitivity of the Dayton Audio 8" full range drivers. These will fit in the back seat of a mid size car like my wife's Altima. You know you've been wanting to try high sensitivity single driver speakers. And you know you've been wanting to try open back speakers. Give yourself a Christmas present.  :thumb:

http://www.parts-express.com/dayton-audio-ps220-8-8-point-source-full-range-neo-driver--295-346
« Last Edit: 27 Nov 2014, 12:05 am by FredT300B »

markn

  • Jr. Member
  • Posts: 100
Fred,

Can you tell me what the notch filter is if I wanted to build a pair?

Thanks!

Mark

FredT300B

  • Full Member
  • Posts: 542
Can you tell me what the notch filter is if I wanted to build a pair?


The filter consists of a 0.2mH air core inductor, a 12.5 ohm resistor, and a 9uF metalized poly cap wired in parallel with each other, and installed in series with the positive speaker terminal.

markn

  • Jr. Member
  • Posts: 100
Thanks Fred!

JPoole95

Hi Fred,

I met you a few years back at a Dallas Audio Club meeting in McKinney and again at LSAF in 2012.  Jim Rivers and I came to visit your display room there.

This looks quite interesting to me.  I imagine the plate amps get an input from the preamp so you would need 2 outputs and then use a splitter at the plate amp end?

Have you tried these with a higher wattage amp?  Just wondering if they can only work best with lower powered amps.

Thanks!
John Poole
McKinney, TX

FredT300B

  • Full Member
  • Posts: 542
I imagine the plate amps get an input from the preamp so you would need 2 outputs and then use a splitter at the plate amp end?
Have you tried these with a higher wattage amp?  Just wondering if they can only work best with lower powered amps.

The plate amps have both line-level and speaker-level inputs. I prefer to use the speaker level inputs so I can swap out different main amplifiers without having to change the gain settings on the plate amps. These speakers work fine with my 4w/ch Oddwatt Audio EL84 Poddwatt amp, but for full output capability they like about 20 watts or more. They sound best to my ears with my 20w/ch EL34 amp and with my 200w/ch Krell integrated.  :thumb:

FredT300B

  • Full Member
  • Posts: 542
Reduced to $300. Where else can you get the coherence of a single driver point source speaker, deep powerful bass, smooth frequency response, a benign impedance curve, the openness of a dipole, and high sensitivity for so little money? I'm downsizing and I need to move them. Audition them at my house in West Houston.  :thumb:

Goosepond

  • Full Member
  • Posts: 1181
  • Virna!
PM sent.

Gene

FredT300B

  • Full Member
  • Posts: 542
Bump - $250/pr

Texas42

PM Sent.