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| Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) Discussion of cables, power (the electric kind), tweaks, & accessories. |
03-30-2008, 08:32 PM
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Head-Fi'er
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Join Date: Nov 2007
Posts: 61
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I just ordered one, can't wait to try it out. 
__________________
[Headphone Rig] Bel Canto DAC3 -> Headamp Gilmore Lite -> Darth Beyers V3, Darth Beyer V3DX Deep Cups, Grado HP-1000
[Home Rig] Bel Canto REF1000 Monoblocks -> ML Source
[Portable Rig] Headamp Pico -> Mylarone XBi, Beyerdynamic DTX 50, Klipsch Image, Bose QC-2
[Interconnects] All DIY-ed
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03-30-2008, 09:45 PM
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500+ Head-Fi'er
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Join Date: Mar 2006
Location: Helsinki, Finland
Posts: 747
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This looks very interesting indeed. Very keen to see impressions on headphones performance.
__________________
Headphones: ATH-W5000, AKG K501, Grado HF-2, Alessandro MS2i, ATH-ESW10JPN, Sennheiser IE8, Yuin PK1
Amps: RudiStor RPX33 EV-08, Graham Slee "Green" Solo, MiniBox-E+, iBasso D10
Source: Bel Canto USB Link - Lavry DA10, Mytek Stereo96 DAC, Benchmark DAC1 USB, Valab DAC
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03-30-2008, 11:05 PM
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Headphoneus Supremus
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Join Date: Feb 2005
Location: Plano, TX, USA
Posts: 2,114
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Quote:
Originally Posted by n3rdling
I'm confused; how come sometimes I'll read about amps that are 100wpc that "can't drive x speakers", but then there will be some tiny 10 or 12wpc amp like this one that's driving inefficient speakers? Is that the advantage of T-amps? Would this amp be able to run a 4Ohm, 86dB loudspeaker?
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A lot depends on the listener, speakers, average listening levels, source material, amplifier to speaker impedance compatibility, distance from speaker, etc. As long as the speakers' impedance are compatible with the amplifier though, any amp will be able to run them, the only question is how loud and if you like the sound. As for sound signature preference, can't help you there, but may be able to shed some light on loudness.
A general rule of thumb I use is to keep 18 dB of headroom over my average listening level. Why 18 dB? The vast majority of material keeps spikes below 12 dB, but an extra bit of headroom just in case something does and to giving the amp a little buffer isn't a bad idea. This can be adjusted as you see fit, though if you're want a system capable of reproducing to certain 1812 Overture recordings correctly, 40 dB or so of headroom is needed.
In a nearfield situation (~1 m from the speaker), maximum average listening volume is 82 dB. IMHO, this is enough for the usually less rigorous applications that call for nearfield speaker usage. (Computer, desktop, etc. usage)
In a listening room situation (~2-4 m from the speaker), maximum average listening volume is 76-79 dB. IMHO, this is questionable. I like to listen around the 85 dB range when listening for enjoyment. This setup wouldn't work for me as at 85 dB as I'd be chopping my headroom in half and risk amplifier clipping. But if you like listening at low levels, this may work.
Assumptions and math for calculations above: Speaker sensitivity is 86 dB/Wm per speaker. Double that for pair, so assume 89 dB/Wm. Amplifier power is 12 WPC. Converted into dBW, is ~ 11 dBW. From that, full scale output is is ~ 100 dB at 1 meter. Also assuming that we want to keep 18 dB of headroom and assuming SPL drop of 3dB for every doubling of distance, referenced to 1 m.
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Simplified Rig: Zune 80 > Shure SLC-4
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Last edited by marvin; 03-30-2008 at 11:15 PM.
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03-31-2008, 12:09 AM
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Headphoneus Supremus
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Join Date: Jun 2006
Location: Seattle
Posts: 2,050
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I wonder how hard it would be to cram a DAC in one of these??
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"DBT is for suckers"
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Home Rig:
Arcam CD73, WOO 3+ very upgraded, Senn HD580 with Custom Kimber Kable Headphone cable and DIY interconnects, MS-1's recable with Silver plated copper, Custom power cables,Custom IC's and Audio grade fuses ALO Wood Ipod Dock
Portable:
5G ipod or CD player, Red Tomahawk or Portiphile, Koss Ksc-75's recabled by Apuresound with a 75 Ohm resistor, Livewires T1, Headroom 4" mini to mini, ALO Bling Bling dock
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03-31-2008, 07:02 PM
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Headphoneus Supremus
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Join Date: Apr 2005
Location: Ontario, Canada
Posts: 3,349
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When is the silver one being released? I'd like to try one of these.
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cheers, warpdriver ( feedback)
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04-02-2008, 03:36 AM
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100+ Head-Fi'er
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Join Date: Dec 2007
Posts: 291
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Link has 3 or 4 reviews:
Nuforce Icon feedback
The 6moons was pretty detailed; those speaker cables bundled don't look half bad, either.
I'm really wanting for a good review on its headphone amp, though 
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04-02-2008, 04:41 AM
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500+ Head-Fi'er
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Join Date: Sep 2001
Location: Anaheim, CA
Posts: 728
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In the comments section at the end of the 6moons Icon review:
"We will be introducing an earphone (MSRP $79) that will sound better than anything on the market, even those headphones costing 2 to 3 x the price. The earphone is in production now :-)"
Huh? So how good will they be? 
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04-04-2008, 04:44 AM
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100+ Head-Fi'er
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Join Date: Dec 2007
Posts: 291
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Quote:
Originally Posted by Phenic
I just ordered one, can't wait to try it out. |
Keep us updated
Are they going to ship yours soon or are they shipping it with everyone else (Apr 25 or something)?
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04-08-2008, 05:59 PM
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Junior Head-Fi'er
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Join Date: Nov 2005
Posts: 27
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Did they just sell out of the red ones? I'd like to get my hands on one to try out....
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04-08-2008, 10:21 PM
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Head-Fi'er
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Join Date: Nov 2007
Posts: 61
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Quote:
Originally Posted by CountChoculaBot
Keep us updated
Are they going to ship yours soon or are they shipping it with everyone else (Apr 25 or something)? |
Same time as everyone else I think which is end april.
__________________
[Headphone Rig] Bel Canto DAC3 -> Headamp Gilmore Lite -> Darth Beyers V3, Darth Beyer V3DX Deep Cups, Grado HP-1000
[Home Rig] Bel Canto REF1000 Monoblocks -> ML Source
[Portable Rig] Headamp Pico -> Mylarone XBi, Beyerdynamic DTX 50, Klipsch Image, Bose QC-2
[Interconnects] All DIY-ed
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04-10-2008, 05:55 AM
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Headphoneus Supremus
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Join Date: May 2006
Location: Indiana
Posts: 4,509
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Quote:
Originally Posted by blippster
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Those are Texas Instrument N5532s, yes. I see that it has a Burr-Brown PCM2706 DAC chip; I don't recall anyone here mentioning its functionality as a USB DAC, though it is listed in the 6moons review.
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Team Value-Fi.
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04-10-2008, 03:15 PM
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Headphoneus Supremus
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Join Date: Apr 2005
Location: Ontario, Canada
Posts: 3,349
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The preorder for the Silver Icon is open now on Amazon. Go get them!
__________________
cheers, warpdriver ( feedback)
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04-11-2008, 10:27 PM
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500+ Member:
Never looks a gift amp in the jackhole.
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Join Date: Jun 2001
Location: quivering with anticipation......
Posts: 1,996
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Sent an e-mail to the local Nuforce dealer - Marigo Audio- asking if he had one in stock. No response. Been over a month now. Kind a killed my interest in the product. Anyone listened to one yet?
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"Beneath my goody-two-shoes lies some very dark socks". - Lisa Simpson
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04-12-2008, 04:39 PM
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Headphoneus Supremus
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Join Date: Feb 2007
Location: WA USA
Posts: 2,430
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Quote:
Originally Posted by blippster
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that is what you get from a "real IEEE engineer"..... "good enough, per my calculation you will never be able to hear the difference anyway" 
__________________
Life is to short to drink lousy coffee or put up with half-as$ phones.
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