snailtrax Posted November 7, 2013 Share Posted November 7, 2013 I want to try one of these, mainly out of curiosity, on my Lascala's. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=230-108 "Output power: 70 mW (32Ω), 12 mW (300Ω)" Can someone do the math and give a reasonable opinion as to the volume I should expect using an Iphone 3 as the source, and this headphone amp as the "Amp"? I am thinking it might be suprising. I have no idea what the output of the Iphone 3 is. I already have a home-made adapter made up to adapt an earphone plug to speaker terminals. I can see it now, just a AAA battery making all that music. I want to impress one of my "Car Audio" friends that believes the only way to get performance is with a pair of 1500 watt amps and power wires as big as your thumb. I already have a couple of small t-amps and am quite pleased with their performance. He hasn't seen the t-amps in action yet. I may be in for a disappointment, but I may try one anyway. Thanks, Bill Quote Link to comment Share on other sites More sharing options...
Islander Posted November 7, 2013 Share Posted November 7, 2013 In Sam Tellig's test/impression of the La Scala II a few years ago, he found that a 3.5 watt amp did produce music, but the dynamics were a bit limited. If you're going to buy it to use as a headphone amp anyway, why not try it, but don't expect much volume. Quote Link to comment Share on other sites More sharing options...
WMcD Posted November 7, 2013 Share Posted November 7, 2013 There really is no math available with respect to the LS. The LS probably dips to 4 ohms and the specs for the headphone amp only goes to 32 ohms. But that sort of relation shows that you can expect no bass. The AAA battery can't do too much. If you are interested in small amps (and cheap) try http://www.parts-express.com/pe/showdetl.cfm?partnumber=300-380 at least it seems to have specs at 4 ohms. The distortion seems high when you push it to the limits but could be very respectable at 1 or 5 watts, which are all you need. WMcD Quote Link to comment Share on other sites More sharing options...
NBPK402 Posted November 7, 2013 Share Posted November 7, 2013 We experimented the other day and used a Samsung Note phone to drive one LaScala outside! It was ok to listen to for background music only... But I have no idea how much power the phone was putting out. I am assuming it was way below even a 10th of a watt. Quote Link to comment Share on other sites More sharing options...
NBPK402 Posted November 7, 2013 Share Posted November 7, 2013 I want to try one of these, mainly out of curiosity, on my Lascala's. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=230-108 "Output power: 70 mW (32Ω), 12 mW (300Ω)" Can someone do the math and give a reasonable opinion as to the volume I should expect using an Iphone 3 as the source, and this headphone amp as the "Amp"? I am thinking it might be suprising. I have no idea what the output of the Iphone 3 is. I already have a home-made adapter made up to adapt an earphone plug to speaker terminals. I can see it now, just a AAA battery making all that music. I want to impress one of my "Car Audio" friends that believes the only way to get performance is with a pair of 1500 watt amps and power wires as big as your thumb. I already have a couple of small t-amps and am quite pleased with their performance. He hasn't seen the t-amps in action yet. I may be in for a disappointment, but I may try one anyway. Thanks, Bill If you want to impress them... Get a boombox and drive a pair off the headphone amp... We did that back in the early 1980s and it sounded like a big stereo! Quote Link to comment Share on other sites More sharing options...
snailtrax Posted November 7, 2013 Author Share Posted November 7, 2013 Thanks for the input. No need to try this then. I'll stick with the small Lepai. Quote Link to comment Share on other sites More sharing options...
Marvel Posted November 7, 2013 Share Posted November 7, 2013 In Sam Tellig's test/impression of the La Scala II a few years ago, he found that a 3.5 watt amp did produce music, but the dynamics were a bit limited. How ironic, since many CDs don't have dynamics. I USE 3.5 watt amps and the dynamics aren't limited when I listen to classical/orchestral music, or lots of other music. I wonder what Tellig means by limited? 1 Quote Link to comment Share on other sites More sharing options...
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