Zu Audio Dirty Weekend...

kharp1kharp1 Posts: 2,453
Been eyeing a higher efficiency pair of speakers and ended up grabbing a pair of these from the Zu site today. Not sure exactly what to expect, but, I'll give them a few laps around the track.

https://www.zuaudio.com/loudspeakers/omen-dirty-weekend-2
Main System:
Joule-Electra LA 100 MKIII
Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
Marantz SA-14S1
Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
Dual SVS SB2000
Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

Secondary Rig:
Parasound P5, Audio Electronics by Cary Constellation
Marsh a200s, Audio Elecrtonics by Cary Hercules
Pioneer Elite DV-45a, Denon DVD-2910
Klipsch Epic CF-1, Vandersteen 3CE sig
Analysus Plus Oval

«1

Comments

  • EndersShadowEndersShadow Posts: 15,864
    @mrbiron has a pair IIRC
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • mrbironmrbiron Posts: 4,811
    Mine aren't dirty....mostly

    I bought a new pair of MK-1Bs about 4 years ago and love them. Won't be moving them for a while (because I'll be broke in 6 months). I think the new release Dirty Weekends have the newer driver than what I have. Can't comment on that.

    I've run them off an Anthem MCA20, the PS Audio Delta (bought from kharp), PS Audio Sprout, and still use it with a small Peachtree Decco.

    Everyone swears they love tube gear. I don't have any experience with this...

    You'll like then...maybe.
    Zu Audio Omen MK-1B's, Peachtree Decco65, Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, Zu Mission SC's, HTPC, One, Bottlehead Reduction & Crack w/Speedball
  • mhardy6647mhardy6647 Posts: 18,747
    mrbiron wrote: »
    ...

    Everyone swears they love tube gear. I don't have any experience with this...
    ...
    ...it can be arranged, you know?

    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mrbironmrbiron Posts: 4,811
    I know...
    When are you coming to Mass again?.... :p
    Zu Audio Omen MK-1B's, Peachtree Decco65, Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, Zu Mission SC's, HTPC, One, Bottlehead Reduction & Crack w/Speedball
  • mhardy6647mhardy6647 Posts: 18,747
    Gotta pick up Mrs. H at BOS from Alaska in a coupla weeks -- got any trips to the airport pending?

    I doubt that she'd appreciate a detour on the way home :p
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mhardy6647mhardy6647 Posts: 18,747
    Oh, for the OP's benefit, there's a voluminous thread on the titular Zu loudspeakers @ AK:

    http://audiokarma.org/forums/index.php?threads/zu-audio-omen-dirty-weekends.524871/

    My apologies if it is the OP's thread there, too! :/
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mpitogompitogo Posts: 271
    Sweet. Looks like they’re back in stock. They were originally only offered during St Patrick’s weekend back in March. I’ve been eyeing a pair for a new project, ACA balanced monoblocks output of 20wpc at best into 8ohms.
    Music-2.0 Raidho D-3.1 | Audio Research Ref 40 | Jeff Roland 925 | Esoteric Grandioso K1 | Transparent Reference, IC, Speaker and Power | HRS SXR Rack
  • kharp1kharp1 Posts: 2,453
    I went the cheap route and ordered the rustic hickory. Put the sangria maple in the cart, but, decided to go plain Jane incase I didn't like tfem, less money put out. I just like getting different, interesting things in my system and checking them out.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • ClipdatClipdat Posts: 4,507
    I thought this bit from their website was interesting:

    "Make sure you have 1/4” [6 mm] or so gap between the bottom of the Omen loudspeakers and the floor. The finger ports are part of the Zu-Griewe box loading technology. They are not ports as used in a bass-reflex design but the finger ports do need to see the acoustic impedance of the room to function; blocking them turns Omen into an interesting but sealed design."
    Got Dayens?
  • tonybtonyb Posts: 29,555
    Seeing that they are pretty high up there efficiency wise, what are you going to drive these with bro ?
    HT SYSTEM-
    Pioneer elite vhx 21
    Sony 4k BRP
    Tad 803 bookies
    Polk 500 surrounds
    Polk s35 center
    SVS SB-2000
    Sonos

    Music-

    Joule la-100 pre
    B&k 1403 amp
    Cary xciter dac
    Cullen modded Sonos
    ERA D5 bookies

    Cables-
    Acoustic zen Satori speaker cables
    Analysis plus crystal oval ic's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable
  • txcoastal1txcoastal1 Posts: 9,870
    Just a heads up
    If you don't have a low watt SET amp/integrated be very careful with the know

    Some preamps and integrated's have issues controlling volume on high efficient speakers
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • halohalo Posts: 4,304
    I read a bit of the thread on AK posted by @mhardy6647 and it looks like a sweet little SET amp is your best bet with these. Looks like you’re also going to need some tile and bolts from the Home Depot to angle these up properly. Most of the reviews are really positive on these Kerry! Enjoy!
  • mhardy6647mhardy6647 Posts: 18,747
    That's what I would do :p but something like the AmpCamp Amp might be a nice option.

    There's no problem per se with high power amplification -- the problem with some high-power amplifiers is that they really don't perform very well qualitatively or quantitatively at very low output power levels.

    When one only needs milliwatts of power for comfortable listening levels, the perfomance of an amplifier at milliwatts of output is paramount to the quality of what comes out of the speakers. Most amplifiers aren't, IMO, carefully designed for great performance at low output power levels because current fashion runs to low-sensitivity loudspeakers.

    :p
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mhardy6647mhardy6647 Posts: 18,747
    edited June 13
    Heh -- sorry to harp on this point, but, in fact :) if one looks at "objective" (quantitative) measurements of typical Class AB amplifiers for the last 50 years or so, they're at their best, measurably, at ca. 1 watt output. Lowest distortion of various kinds; broadest, flattest frequency response, stuff like that*.

    That's dandy with loudspeakers of nominal sensitivity of, say, 85 dB SPL at 1 meter for 1 watt input.

    With loudspeakers at, say, 105 dB sensitivity (at 1 meter for 1 watt input), the story may be rather different.

    __________________
    * I am not suggesting that the measurable things are necessarily the be-all and end-all components to assess sonic performance, but they are markers for sonic performance :p


    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • tonyp063tonyp063 Posts: 398
    A wise man once said
    "if the first watt sucks, why have 199 more of them"?
  • mhardy6647mhardy6647 Posts: 18,747
    ... and another guy* said:
    "What this country needs is a really good five-watt amplifier."

    That guy said a lot of clever and even prescient things. Too bad he didn't actually make better sounding loudspeakers ;)

    __________________
    * This guy.

    dokxjytkdoow.png
    s0vo8ym9sh68.png

    https://www.stereophile.com/news/11338/index.html

    see also:
    https://www.klipsch.com/quotes-anecdotes
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mhardy6647mhardy6647 Posts: 18,747
    edited June 13
    tonyp063 wrote: »
    A wise man once said
    "if the first watt sucks, why have 199 more of them"?

    ... but, to the point at hand, it's more like "if the first fifty milliwatts suck, why have 450 more like them" :|


    Srsly :)

    A loudspeaker capable of 105 dB SPL at 1 meter per 1 watt input power* will produce 85 dB at 1 meter with 10 milliwatts.

    ______________________
    * The sensitivity of the Klipschorn is 104 dB @ 1 meter per 1 watt, if memory serves -- 'bout the same as my Frankenaltecs.
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • kharp1kharp1 Posts: 2,453
    I'm not sure on which amp will end up with them, but, I'll try the AE by Cary EL34 amp, and, of course, the MastersounD Evolution 845. Wonder what kind of real life SPL I can achieve with 55 watts of SET power? Just something to play around with.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • mhardy6647mhardy6647 Posts: 18,747
    edited June 13
    Depends, to a great extent, on the drivers in the loudspeakers, I would think.

    Modern drivers may exhibit quite a bit more power compression than did drivers in the olden days when watts were precious and no one wanted, nor could afford, to have 'em going to waste.

    Of course,the ability of the drivers to simply handle high levels of input power without immolation is also a factor. The old warhorses were not so good at that -- even though they made darned good use of the power they could sink.

    :)


    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • ClipdatClipdat Posts: 4,507
    Looking forward to photos once they arrive, great looking speakers imo.
    Got Dayens?
  • txcoastal1txcoastal1 Posts: 9,870
    The problem with higher watt output w/ high eff. speakers is the sensitivity of the volume control
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • kharp1kharp1 Posts: 2,453
    txcoastal1 wrote: »
    The problem with higher watt output w/ high eff. speakers is the sensitivity of the volume control

    Warmth can get obliterated quickly, too.
    Main System:
    Joule-Electra LA 100 MKIII
    Pass Labs Aleph 30, McCormack DNA-125, Parasound A21
    Marantz SA-14S1
    Usher CP-6311/Tyler Acoustics Taylo Reference Monitor, LSA-1
    Dual SVS SB2000
    Wireworld Equinox 7 bi-wire, Wireworld Silver Eclipse 7 IC

    Secondary Rig:
    Parasound P5, Audio Electronics by Cary Constellation
    Marsh a200s, Audio Elecrtonics by Cary Hercules
    Pioneer Elite DV-45a, Denon DVD-2910
    Klipsch Epic CF-1, Vandersteen 3CE sig
    Analysus Plus Oval

  • txcoastal1txcoastal1 Posts: 9,870
    Just making sure you are aware

    I've been seriously wanting to test some Zu's with my Unison Research Simply Italy Integrated 12watt. I still have some NOS tubes still in the box that I purchased from Brock ...a couple years ago :D :D :D

    Looking forward to your thoughts bro

    Feel free to PM me and give me a shout
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • txcoastal1txcoastal1 Posts: 9,870
    @mrbiron
    That's an great looking set up!
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • mrbironmrbiron Posts: 4,811
    Too bad my Dehu is in the photo... :(
    Zu Audio Omen MK-1B's, Peachtree Decco65, Bryston BDA-2, Cheap TT, PS Audio UPC200, PS Audio AC3's, Zu Mission SC's, HTPC, One, Bottlehead Reduction & Crack w/Speedball
  • txcoastal1txcoastal1 Posts: 9,870
    mrbiron wrote: »
    Too bad my Dehu is in the photo... :(

    As long as it's not your dicDoo :)
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • mhardy6647mhardy6647 Posts: 18,747
    txcoastal1 wrote: »
    The problem with higher watt output w/ high eff. speakers is the sensitivity of the volume control

    That's a preamp problem (gain and or volume control taper) not an amp problem.
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
  • mhardy6647mhardy6647 Posts: 18,747
    txcoastal1 wrote: »
    @mrbiron
    That's an great looking set up!

    can't wait to see 'em in his new house... ;)
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

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

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
«1
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!