ls90 with 8 watt tube amp

ohskigod
ohskigod Posts: 6,502
edited March 2006 in 2 Channel Audio
I'm buying that little Raddii from Russ 8wpc tube push pull (a future question will be...what does push pull mean :) )

anyway, I'm looking at my currrent speakers and wondering what would be best to run with it.

I have a pair of B&W DH550 bookshelves I am currently usinf with my Dodd pre and Sonic impact amp (dont laugh, this rig sounds surprisingly good, but no low end). Since the Radii will replace the sonic inpact, the B&W's are obviously on the list, but at 86db efficiancy, I know I can do better

I also have RT55's and LS90's, would it be kosher to use them, they actually have higher efficiency ratings but are bigger speakers, any comments as to wether it will be kosher or not?
Living Room 2 Channel -
Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

Upstairs 2 Channel Rig -
Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
Post edited by ohskigod on
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Comments

  • cmy330go
    cmy330go Posts: 2,341
    edited March 2006
    I would think the RT55s would be the best of the 3 since they have the highest efficiency and are still a smaller speaker. I would think the LS90s and the B&Ws would be about a toss up. But I wouldn't be afraid to try any of them. I think it's amazing what little amps like that can do.

    Just my .02 worth.
    Congrats and ENJOY!
    Dave
    HT
    Mits WD-65737, DirecTV, Oppo DV-970HD, XBOX ONE, Yamaha RX-A1030, Parasound Halo A23, Rotel RB-985, Music Hall MMF-7, Parasound PPH-100, LSi-15, LSi-C, LSi-FX, LSi-7, PSW-1000, Monster HTS2600

    2 CH
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  • ohskigod
    ohskigod Posts: 6,502
    edited March 2006
    cmy330go wrote:
    I would think the RT55s would be the best of the 3 since they have the highest efficiency and are still a smaller speaker. I would think the LS90s and the B&Ws would be about a toss up. But I wouldn't be afraid to try any of them. I think it's amazing what little amps like that can do.

    Just my .02 worth.
    Congrats and ENJOY!
    Dave



    rt55 smaller and more efficient is a good point. and easier to carry into my basement :D

    sounds like an plan, at least to start. thanx
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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  • reeltrouble1
    reeltrouble1 Posts: 9,312
    edited March 2006
    Spend more money.

    http://cls.audiogon.com/cgi-bin/cls.pl?ddspkrfull&1143424786

    One of my goals is to build a SET rig using these unless some peep beats me to it. Then I will just build something else.!!

    RT1
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  • ND13
    ND13 Posts: 7,601
    edited March 2006
    I'd try em all and see which does the best job. Don't always look at the specs.
    "SOME PEOPLE CALL ME MAURICE,
    CAUSE I SPEAK OF THE POMPITIOUS OF LOVE"
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  • ohskigod
    ohskigod Posts: 6,502
    edited March 2006
    reeltrouble1 wrote:
    Spend more money.

    http://cls.audiogon.com/cgi-bin/cls.pl?ddspkrfull&1143424786

    One of my goals is to build a SET rig using these unless some peep beats me to it. Then I will just build something else.!!

    RT1


    OUCH!

    I am considersing a possible DIY project, high efficiency full range driver speaker someday :)
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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  • ohskigod
    ohskigod Posts: 6,502
    edited March 2006
    ND13 wrote:
    I'd try em all and see which does the best job. Don't always look at the specs.

    just out of boredom you can count on it :D
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2006
    reeltrouble1 wrote:
    Spend more money.

    http://cls.audiogon.com/cgi-bin/cls.pl?ddspkrfull&1143424786

    One of my goals is to build a SET rig using these unless some peep beats me to it. Then I will just build something else.!!

    RT1


    Damn, dude... don't buy those! Go to madisound, pick up the drivers brand new for $160 and build some better cabinets yourself. If nothing else, they're using the wrong drivers for a bass reflex- those are FE206's which are good for BL horns, TL's and Voight pipes.

    EDIT:
    Ok, so fostex does have plans for them in a bass reflex- It's the sigmas that won't work well there...
    http://www.fostexinternational.com/docs/speaker_comp/pdf/recom_enclose/206e_enclrev.pdf
    http://www.fostexinternational.com/docs/speaker_comp/pdf/recom_enclose/207e_enclrev.pdf
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited March 2006
    I found my SDA1Cs to sound much better on my ASL AV20s than my RT55s. The 55s pulled much more out of the amp than the bigger box speakers. I would hook them up to everything you own, even the Amazings to hear what the low wattage can do. We rarely get the chance anymore to see how tube power can be different and the right match can be lots of fun. I think the synergy of a tube amp with right speakers makes more difference than with solid state.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

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  • ohskigod
    ohskigod Posts: 6,502
    edited March 2006
    sounds like a plan

    those fostex plans look interesting too, might be a project for down the road. ah, but let me get the amp in the door first :)
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2006
    Yeah, the Fostex are fun to play with- They'll go every bit as loud as my LSi's but do it on only 80 watts. They're ideal for low powered tubes...

    Everything I've done has been ugly as hell MDF, but they sound great- especially female vocals.
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • ohskigod
    ohskigod Posts: 6,502
    edited March 2006
    dude, i'm all about lookin ugly as hell but sounding great when it comes to my DIY projects :p
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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  • unc2701
    unc2701 Posts: 3,587
    edited March 2006
    If I get sick of playing with these Fostex's I'll be sure to pass them on to the forum- Right now I've got the 8" ones in my sig, plus the FE168 sigma's that only work in BL horns. At some point the wife is gonna get sick of it :)
    Gallo Ref 3.1 : Bryston 4b SST : Musical fidelity CD Pre : VPI HW-19
    Gallo Ref AV, Frankengallo Ref 3, LC60i : Bryston 9b SST : Meridian 565
    Jordan JX92s : MF X-T100 : Xray v8
    Backburner:Krell KAV-300i
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  • dragon1952
    dragon1952 Posts: 4,899
    edited March 2006
    The LS90's are pretty efficient and they only use 6 1/2" drivers so I think you'd be fine with those.
    2 channel - Willsenton R8 tube integrated, Holo Audio Spring 3 KTE DAC, audio optimized NUC7i5, Windows 10 Pro/JRiver MC29/Fidelizer Plus 8.7 w/LPS and external SSD drive, PS Audio PerfectWave P3 regenerator, KEF R3 speakers, Rythmik F12SE subwoofer, Audioquest Diamond USB cable, Gabriel Gold IC's, Morrow Audio SP5 speaker cables. Computer - Windows 10/JRiver, Schiit Magni 3+/Modi 3+, Fostex PMO.4n monitors, Sennheiser HD600 headphones
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  • amulford
    amulford Posts: 5,020
    edited March 2006
    Dennis Gardner wrote:
    I would hook them up to everything you own, even the Amazings to hear what the low wattage can do.


    Not worth the chance, you'd probably cook that amp. Tha Amazings or that amp are will suffer dearly...
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  • audiobliss
    audiobliss Posts: 12,518
    edited March 2006
    amulford wrote:
    Not worth the chance, you'd probably cook that amp. Tha Amazings or that amp are will suffer dearly...
    Just curious...but why?
    George Grand wrote: »
    Jstas wrote: »
    Simple question. If you had a cool million bucks, what would you do with it?
    Wonder WTF happened to the rest of my money.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited March 2006
    They are real tough impedance loads to drive..........
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • amulford
    amulford Posts: 5,020
    edited March 2006
    Well, the Amazings are power hungry. REAL power hungry.

    Trying to get them to perform will probably overdrive the amp, and distort. If the distortion doesn't kill the ribbons, it won't drive eight 12 inch woofers...
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  • ohskigod
    ohskigod Posts: 6,502
    edited March 2006
    the platinums are 8 ohms, but they still require alot of power to get em moving. sometimes it seems like my carver 4.0 works real hard during certain parts of music, the power meters really start dancin
    Living Room 2 Channel -
    Schiit SYS Passive Pre. Jolida CD player. Songbird streamer. California Audio Labs Sigma II DAC, DIY 300as1/a1 Ice modules Class D amp. LSi15 with MM842 woofer upgrade, Nordost Blue Heaven and Unity interconnects.

    Upstairs 2 Channel Rig -
    Prometheus Ref. TVC passive pre, SAE A-205 Amp, Wiim pro streamer and Topping E50 DAC, California Audio Labs DX1 CD player, Von Schweikert VR3.5 speakers.

    Studio Rig - Scarlett 18i20(Gen3) DAW, Mac Mini, Aiyma A07 Max (BridgedX2), Totem Mites
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