I need a small sealed sub

Hey guys, need opinions on a small sealed sub to go with a Harbeth desktop system I'm putting together. Space and budget are both tight, luckily I'm not looking for something with significant output, I just need something to fill in the low end of the Harbeth a little...thinking a small 8" would do the trick. One of those little Sunfire job would be perfect if they still made them and they were cheaper.

I think a sealed model would work best but I'm open to ports (see what I did there) if there are good options there.
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Comments

  • F1nutF1nut Posts: 43,123
    Look for a Velodyne SPL
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • txcoastal1txcoastal1 Posts: 10,656
    Are you using the P3ESR?
    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
  • AsSiMiLaTeDAsSiMiLaTeD Posts: 11,717
    edited March 2018
    I am

    With my dad coming to stay with us for a while I've got very limited space for a 2 channel system, so decided to build a nice desktop system around the Harbeth and a small integrated, need a small sub to match
  • txcoastal1txcoastal1 Posts: 10,656
    @DSkip

    Sunfire SDS8 8" Dual Driver
    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
  • AsSiMiLaTeDAsSiMiLaTeD Posts: 11,717
    I'll look into that one, also looking at the ML Dynamo 700 as it appears to also be acoustic suspension
  • DSkipDSkip Posts: 16,288
  • ConradiclesConradicles Posts: 5,891
    There are a few used REL subs on the bay that may fit your budget.
  • rooftop59rooftop59 Posts: 6,013
    https://www.ebay.com/itm/Martin-Logan-Dynamo-speaker/263513176319?hash=item3d5a9bf8ff:g:qkMAAOSwCoBaj47I

    Best sealed sub you can get for the money...All day every day and twice on sunday.
    Living Room 2.1: Dynaudio Contour 1.3mkii; Energy s10.2 sub; Cambridge Azur 851a; Cambridge Azur 752BD; Bryston BPD-1; NVidia ShieldTV
    Game Room HT: Denon AVR-X4200w; Definitive Technology SM350; Definitive Technology LCR2000; Definitive Technology Procinema 800; Mirage Nanasats; Sub - HSU VTF-2 MK5; LG UP870 4K BDP;
    ; Master Bedroom
    Cambridge Azur 551r; Definitive Technology SM45, ACI Titan Subwoofer Squeezebox Touch
  • rooftop59rooftop59 Posts: 6,013
    If you can find an ACI force it is an even better sub, but hard to find and most likely will cost closer to 300.
    Living Room 2.1: Dynaudio Contour 1.3mkii; Energy s10.2 sub; Cambridge Azur 851a; Cambridge Azur 752BD; Bryston BPD-1; NVidia ShieldTV
    Game Room HT: Denon AVR-X4200w; Definitive Technology SM350; Definitive Technology LCR2000; Definitive Technology Procinema 800; Mirage Nanasats; Sub - HSU VTF-2 MK5; LG UP870 4K BDP;
    ; Master Bedroom
    Cambridge Azur 551r; Definitive Technology SM45, ACI Titan Subwoofer Squeezebox Touch
  • mhardy6647mhardy6647 Posts: 23,630
    ALL212 wrote: »
    Here you go - the sealed ones seem to come back ok but the non-sealed ones tend to disappear. We are investigating...

    jlt0a4he1vtv.jpg

    Do they come in any other colors, or would I need to source some black paint and DIY?
  • ALL212ALL212 Posts: 1,149
    oh...black paint...not sure where to get that... >:)
    Aaron
    Enabler Extraordinaire
  • 98Badger98Badger Posts: 302
    I have an Energy ESW-M8 that I have been meaning to list for a while. It has seen very little use. It is very impressive considering the size. All original packaging. PM me if you are interested and I can send pics. Price will be reasonable. Around $150
  • txcoastal1txcoastal1 Posts: 10,656
    edited March 2018
    https://denver.craigslist.org/ele/d/subwoofer-velodyne-dls-3500r/6506835854.html

    https://denver.craigslist.org/search/sss?query=subwoofer&sort=rel


    Seriously take a look at your Denver CL ads, some pretty good deals on subs perfect for your PC near field rig
    Post edited by txcoastal1 on
    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
  • AsSiMiLaTeDAsSiMiLaTeD Posts: 11,717
    I've decided that I want to keep the Ampino in the mix (many of my issues would be solved if I wasn't married to this amp), so that's going to severely limit my options on a sub.

    I've been advised by a trusted source (who shall remain nameless) to absolutely NOT buy REL (due to issues not related to sound quality which apparently is still top notch), this is quite unfortunate because they're the one sub I've found that has the feature where I can wire the sub straight into the speaker terminals, in fact that's the preferred method. I may roll the dice and buy a REL anyway, but before I do that I wanted to see if there are other options out there.

    Anything else that you guys know of that has this functionality?

    I'd still like something on the small side but can go up in size as long as it's still nice and tight and will work in a small room. Budget at this point is whatever, if I can find something that fits my needs I'll make the dollars work.
  • rooftop59rooftop59 Posts: 6,013
    Danny did you look at the Martin Logan I listed? It can do everything you need hook up wise and has an excellent, accurate crossover and is very tight and musical. I have probably owned as many subs as you have headphones lol...
    Living Room 2.1: Dynaudio Contour 1.3mkii; Energy s10.2 sub; Cambridge Azur 851a; Cambridge Azur 752BD; Bryston BPD-1; NVidia ShieldTV
    Game Room HT: Denon AVR-X4200w; Definitive Technology SM350; Definitive Technology LCR2000; Definitive Technology Procinema 800; Mirage Nanasats; Sub - HSU VTF-2 MK5; LG UP870 4K BDP;
    ; Master Bedroom
    Cambridge Azur 551r; Definitive Technology SM45, ACI Titan Subwoofer Squeezebox Touch
  • AsSiMiLaTeDAsSiMiLaTeD Posts: 11,717
    I did but that won't work in my configuration I don't think. I don't know how I'd hook that up in my system.

    it has speaker inputs but I don't understand how those work. Do I hook those and my speakers both up to the same set of posts on the amp?
  • rooftop59rooftop59 Posts: 6,013
    I did but that won't work in my configuration I don't think. I don't know how I'd hook that up in my system.

    it has speaker inputs but I don't understand how those work. Do I hook those and my speakers both up to the same set of posts on the amp?

    https://www.martinlogan.com/uploads/documents/manuals/manual_dynamo.pdf

    Look at page nine. You can either run from amp to speakers and then speakers to sub, or from amp to sub and sub to speakers. In either case u have to double up on the same binding posts.
    Living Room 2.1: Dynaudio Contour 1.3mkii; Energy s10.2 sub; Cambridge Azur 851a; Cambridge Azur 752BD; Bryston BPD-1; NVidia ShieldTV
    Game Room HT: Denon AVR-X4200w; Definitive Technology SM350; Definitive Technology LCR2000; Definitive Technology Procinema 800; Mirage Nanasats; Sub - HSU VTF-2 MK5; LG UP870 4K BDP;
    ; Master Bedroom
    Cambridge Azur 551r; Definitive Technology SM45, ACI Titan Subwoofer Squeezebox Touch
  • AsSiMiLaTeDAsSiMiLaTeD Posts: 11,717
    I did find that same document, do we know if that’s actually safe for the amp?
  • rooftop59rooftop59 Posts: 6,013
    I believe it actually cuts the perceived load in half (like from 8 to 16 ohms). @mhardy6647 can u provide any insight?
    Living Room 2.1: Dynaudio Contour 1.3mkii; Energy s10.2 sub; Cambridge Azur 851a; Cambridge Azur 752BD; Bryston BPD-1; NVidia ShieldTV
    Game Room HT: Denon AVR-X4200w; Definitive Technology SM350; Definitive Technology LCR2000; Definitive Technology Procinema 800; Mirage Nanasats; Sub - HSU VTF-2 MK5; LG UP870 4K BDP;
    ; Master Bedroom
    Cambridge Azur 551r; Definitive Technology SM45, ACI Titan Subwoofer Squeezebox Touch
  • F1nutF1nut Posts: 43,123
    The way REL connects their subs is EXACTLY the same as what is called high level or speaker level inputs. You tap off the same binding posts on your amp and connect to the high level binding posts on the sub. It is entirely safe and is the preferred method as the sub is getting the EXACT same signal as the speakers. Using pre out or sub out connections result in not quite the same signal as your speakers are getting from the amp. That is why the high level method sounds better.

    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • rooftop59rooftop59 Posts: 6,013
    There ya go!
    Living Room 2.1: Dynaudio Contour 1.3mkii; Energy s10.2 sub; Cambridge Azur 851a; Cambridge Azur 752BD; Bryston BPD-1; NVidia ShieldTV
    Game Room HT: Denon AVR-X4200w; Definitive Technology SM350; Definitive Technology LCR2000; Definitive Technology Procinema 800; Mirage Nanasats; Sub - HSU VTF-2 MK5; LG UP870 4K BDP;
    ; Master Bedroom
    Cambridge Azur 551r; Definitive Technology SM45, ACI Titan Subwoofer Squeezebox Touch
  • Jim ShearerJim Shearer Posts: 367
    As to speaker level connection from an amp to a sub plate amp:
    Amps which are class D, class T, and those marked 'BTL' (bridge tied load) could be damaged. With those types of amps, the black terminal isn't ground, it is 'hot'. I don't recall all the details, but this is what I was told by someone familiar with those types of amp topology.
    A day without music is like a day without food.
  • F1nutF1nut Posts: 43,123
    The negative binding posts on class D or T amps are not hot.

    When using bridged amps things become a little more complicated. One should always check the wiring schematic on the rear panel. This is a Bryston, note neither black binding post is used in bridged mode.

    hvri7wjcfryx.png


    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • Jim ShearerJim Shearer Posts: 367
    F1,

    That looks to me exactly like why the guys at DIYaudio told me NOT to use such an amp connected to the speaker level inputs of a plate amp--in bridged mode, both speaker wires are 'hot', and no common ground between channels if both are connected to the plate amp. Those guys at DIYaudio build stuff & I think they know what they are talking about.

    IDK, some gear might survive, especially if you have only one channel into the plate amp, but I'm not going to take a chance.
    A day without music is like a day without food.
  • mlistens03mlistens03 Posts: 2,648
    Is this small enough?
    3lo8e6p53lhm.jpeg
    In all seriousness, you could get a velodyne vx-10b, it’s not super small, but if it’s is small enough, I would totally get one. I used one for around 6 months and it is awesome.
    c870bvk31h4g.jpeg
    Not Tom or Trey or Jim just Micah
    KEF Q150s, NAD 1155 preamp and 4155 tuner courtesy of DaddyJT, NAD C352 playing power amp, BJC Belden cables, Technics SL3200, Marantz CD6004 courtesy of Clipdat, Salamander Archetype rack, Millenium Falcon :)
    I've always thought the goal of high-end audio was not to have your neighbors bang on the wall and say, 'Turn that darn music down' but to have your neighbors bang on the wall and say, 'Tell your friends to go home and you can practice later this week'.

    Resident Child of Club Polk
  • F1nutF1nut Posts: 43,123
    F1,

    That looks to me exactly like why the guys at DIYaudio told me NOT to use such an amp connected to the speaker level inputs of a plate amp--in bridged mode, both speaker wires are 'hot', and no common ground between channels if both are connected to the plate amp. Those guys at DIYaudio build stuff & I think they know what they are talking about.

    IDK, some gear might survive, especially if you have only one channel into the plate amp, but I'm not going to take a chance.

    You didn't look at the connection diagram on the back of that amp. Both are NOT hot, one is positive and one is negative. It's basically the same as a mono block amp.

    FYI, those guys don't know what they are talking about.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • EndersShadowEndersShadow Posts: 16,936
    @AsSiMiLaTeD

    Have you looked at the older HSU offerings (STF-1 or STF-2)? Small(ish) ported, downfiring, and have speaker level inputs...

    Might stumble across them used and they weren't super pricey New either.

    Also what about Outlaw Audio? They have their newer M8 sub. It is also ported, downfiring, and has speaker level inputs (though only clip springs so that stinks).
    "....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)
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