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| Portable Headphone Amps Discussion of portable headphone amps. |
03-27-2008, 07:25 PM
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Headphoneus Supremus
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Join Date: Aug 2007
Location: Rocky Mountains, CO
Posts: 11,823
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Quote:
Originally Posted by shinew
ouch, 9 hours is long time to be on headphones, i can't stand my hd600 on for more than 2-3hrs. I can listen to er4 all day though 
seems to me the 2move offers the best bang for the buck. I wonder if i should buy a predator to compare it w/ my 2move and keep the one i like the most...
BTW, which track & timing of the Diana Krall - The Gril in the Other Room are you refering to? I would like to check it out with my 2move. thanks. |
I have 4 tracks from that CD I use for testing: title track Girl in the Other Room, Temptation, Black Crow, and Departure Bay.
__________________
Quote:
Originally Posted by Leonardo_BVB
...honestly, it's like comparing ugly Betty with Scarlett Johjansson, you do not know where to start because you cannot take your eyes off Scarlett...
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Larry Head-Fi Feedback
Oct 09 Colorado CanJam @ RMAF Impressions
SEE PUBLIC PROFILE "ABOUT ME" FOR LINKS TO REVIEWS AND MY GEAR.
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03-27-2008, 08:01 PM
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100+ Head-Fi'er
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Join Date: Sep 2007
Posts: 130
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Damn, this thread is really really tempting me into getting a Predator, it sounds exactly what I'm looking for, but I recently ordered a UHA3 and it has yet to turn up.
To make matters worse I COULD afford, althought I'd be a little short for a couple of weeks.
This stupid forum, I dunno.
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03-27-2008, 10:05 PM
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100+ Head-Fi'er
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Join Date: Mar 2008
Location: Australia
Posts: 185
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Quote:
Originally Posted by HeadphoneAddict
I had a question about how many opamps go in the amp why more than one. From my limited knowledge, in 4-channel amps there is also an opamp in the ground channel = 2 total opamps. This is not 4 audio channels like quadrophonic, but 2 main and 2 ground channels.
See the post above:
I mentioned the LM6172 replaces the LT1364 (near the tip of the battery and by the 3.5mm jacks. I stated the THS4032 replaces the NE5532, which is closer to the tail end of the amp, to the side the battery. You just observe the orientation of pin 1 before you remove them, but if I recall pin one is closest to the 3.5mm jacks on the 1364, and closest to the battery on the 5532.
If the chips you selected are SOIC (SOIC = solder on integrated circuit) and need to go on a single browndog DIP adapter (DIP = dual insertion process). HiFlight sells these pre-soldered for people, so PM him if you are not competant.
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thanks heaps addict you answered all my queries. i'll go ahead and order 1x LM6172 SOIC and 1x THS4032 SOIC for the D2. I'll also order a bunch of SO8 to 8-pin DIP Adapters so i can also try out my OPA2111's. SO8 to 8-pin DIP Adapter (p/n 970601) - 970601
these are the right ones yeh?
I read in the other D2 thread about the duel SOIC to 8-pin dip where you solder a opamp on both sides of each adapter ... but i'll leave that for another day :P Speaking of which, do you plan on trying that out?
edit: typo replaced LT1364 with THS4032
__________________
headphones: hd650, se530, hd25, hd200, b&o A8
headphone amp: iBasso D2 (opamps - LM6172 & THS4032)
Last edited by wired00; 03-28-2008 at 01:54 AM.
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03-27-2008, 11:38 PM
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1000+ Head-Fi'er
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Join Date: Jan 2008
Location: Montreal
Posts: 1,336
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New toy
Here's a picture of my new toy 
__________________
pico DAC / iPod Touch 2G → ALO Rx → JH13 PRO
pico DAC → Millet Hybrid MiniMAX → Grado HF-2
"Feedbacks"
Last edited by pfillion; 03-28-2008 at 01:11 PM.
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03-28-2008, 01:35 AM
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Headphoneus Supremus
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Join Date: Aug 2007
Location: Rocky Mountains, CO
Posts: 11,823
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Quote:
Originally Posted by wired00
thanks heaps addict you answered all my queries. i'll go ahead and order 1x LM6172 SOIC and 1x LT1364 SOIC for the D2...
...dip where you solder a opamp on both sides of each adapter ... but i'll leave that for another day :P Speaking of which, do you plan on trying that out?
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You mean THS4032 because you already have a 1364.
Someday I'd like to try the dual side with OPA627.
__________________
Quote:
Originally Posted by Leonardo_BVB
...honestly, it's like comparing ugly Betty with Scarlett Johjansson, you do not know where to start because you cannot take your eyes off Scarlett...
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Larry Head-Fi Feedback
Oct 09 Colorado CanJam @ RMAF Impressions
SEE PUBLIC PROFILE "ABOUT ME" FOR LINKS TO REVIEWS AND MY GEAR.
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03-28-2008, 01:37 AM
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1000+ Head-Fi'er
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Join Date: May 2007
Location: USA
Posts: 1,395
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Quote:
Originally Posted by pfillion
Here's a picture of my new toy
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Very nice in red.
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03-28-2008, 01:46 AM
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Headphoneus Supremus
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Join Date: Jul 2005
Location: Miami Beach, Florida
Posts: 16,100
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Nice work Larry, have you given any thougtht at using an AD8620 in the D2? I have one on the way, plus I already received two LM6172 and a couple of THS4032's. 
However my D2 only has about 340 hours of burn in and I am waiting for the 400 hour mark before I roll any op-amps. 
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03-28-2008, 01:47 AM
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100+ Head-Fi'er
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Join Date: Mar 2008
Location: Australia
Posts: 185
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Quote:
Originally Posted by HeadphoneAddict
You mean THS4032 because you already have a 1364.
Someday I'd like to try the dual side with OPA627.
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had a panic there, quickly checked my order and i HAD ordered the THS4032... just a typo in this post phew.
__________________
headphones: hd650, se530, hd25, hd200, b&o A8
headphone amp: iBasso D2 (opamps - LM6172 & THS4032)
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03-28-2008, 05:07 AM
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Headphoneus Supremus
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Join Date: Aug 2007
Location: Rocky Mountains, CO
Posts: 11,823
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pfillion, any chance you might be able to resize down to 800x600 or something 
__________________
Quote:
Originally Posted by Leonardo_BVB
...honestly, it's like comparing ugly Betty with Scarlett Johjansson, you do not know where to start because you cannot take your eyes off Scarlett...
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Larry Head-Fi Feedback
Oct 09 Colorado CanJam @ RMAF Impressions
SEE PUBLIC PROFILE "ABOUT ME" FOR LINKS TO REVIEWS AND MY GEAR.
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03-28-2008, 08:05 AM
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100+ Head-Fi'er
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Join Date: Mar 2008
Location: Australia
Posts: 185
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yay got my D2
playing my first song on the se530s - Bob marley Live Jamming. Amazing. Crowd cheering and clapping the beat all around me...back up singers sound like they're standing to my right, bob in front and band all around...
Directly comparying with and without the amp? just seems like i have my ears clogged with gunk without it. Im simply amazed how much it opens the headphones up, especially Mid to high just seem much clearer... bass feels warmer. Can't wait to try a few different opamps once its got 300+ hours
I was mostly just expecting the hiss to be gone, but man...everything is enhanced. Oh and speaking of hiss... i can turn the volume to full with no song playing and its absolute silence. mmmmm
Lovin' it
Time to burn them both in i guess
__________________
headphones: hd650, se530, hd25, hd200, b&o A8
headphone amp: iBasso D2 (opamps - LM6172 & THS4032)
Last edited by wired00; 03-28-2008 at 08:28 AM.
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03-28-2008, 11:34 AM
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100+ Head-Fi'er
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Join Date: Sep 2007
Posts: 130
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Emailed Ray Samuels about the Predator last night. My willpower is pathetic.
Does anyone have any experience ordering from them outside the US?
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03-28-2008, 01:14 PM
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1000+ Head-Fi'er
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Join Date: Jan 2008
Location: Montreal
Posts: 1,336
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I'm in Montreal, Canada.
Don't worry about the service, I have purchased the Predator Tuesday of this week and it's been delivered to me yesterday.. 
Quote:
Originally Posted by Crackerman
Emailed Ray Samuels about the Predator last night. My willpower is pathetic.
Does anyone have any experience ordering from them outside the US?
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__________________
pico DAC / iPod Touch 2G → ALO Rx → JH13 PRO
pico DAC → Millet Hybrid MiniMAX → Grado HF-2
"Feedbacks"
Last edited by pfillion; 03-28-2008 at 01:22 PM.
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03-28-2008, 01:19 PM
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1000+ Head-Fi'er
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Join Date: Jan 2008
Location: Montreal
Posts: 1,336
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Done.
Quote:
Originally Posted by HeadphoneAddict
pfillion, any chance you might be able to resize down to 800x600 or something |
__________________
pico DAC / iPod Touch 2G → ALO Rx → JH13 PRO
pico DAC → Millet Hybrid MiniMAX → Grado HF-2
"Feedbacks"
Last edited by pfillion; 03-28-2008 at 04:48 PM.
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03-28-2008, 01:49 PM
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100+ Head-Fi'er
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Join Date: Sep 2007
Posts: 130
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Okay thanks.
I'm a little wary about having things sent all the way over to the UK at the moment because for some reason my UHA amp has been held up at customs.
How long does it usually take for RS to reply, by the way?
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03-28-2008, 04:42 PM
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1000+ Head-Fi'er
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Join Date: Jan 2008
Location: Montreal
Posts: 1,336
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Couple of hours..
Quote:
Originally Posted by Crackerman
Okay thanks.
I'm a little wary about having things sent all the way over to the UK at the moment because for some reason my UHA amp has been held up at customs.
How long does it usually take for RS to reply, by the way?
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__________________
pico DAC / iPod Touch 2G → ALO Rx → JH13 PRO
pico DAC → Millet Hybrid MiniMAX → Grado HF-2
"Feedbacks"
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