Headphone Amplification

Well a couple of evenings careful experimentation has resulted in no explosions, I'm still reluctant to leave the H2 connected continuously to the SRM-717 until longer term verification that nothing bad is happening to the headphone or the amp. There's not a huge amount of difference between direct drive from the 717 and the Pass Labs/TR-2 drive. I'd give the nod to the 717 overall though. A big nod once you look at the difference in price between an adapter cable and the TR-2 of course. I also plugged the H2 into the SRM-212, and at anything other than the total bottom of volume control there's a mass of distortion and scratching sound as the H2 tries to suck every…

Hi All, I have just signed up as I am getting into the world of cans for the first time (at least at an audiophile level) - much like Forbigger in his Suggestion for desktop amps......current budget overstretch thread I've been looking at a Corda Cantate (as its what a local distributor has available, note: its not a Cantate.2) but see it seems not an overly popular unit here (getting a little 'shot down' as Forbigger said). However as I am in NZ there is a limit to what's available locally from distributors to try out in the range I'm looking... Anyway I'm after a good value mid-range home use type amp (i.e. not a portable), it'll be for a secondary set up that I o…

http://cls.audiogon.com/cgi-bin/cls.pl?preatube&1192058776 I'm not sure what it is, or what tubes those are...but it does look funky enough to be a "collector's" amp.

Audio Technica AT-HA35i melds headphone amp and iPod dock -- Engadget [url=http://www.audio-technica.co.jp/products/dj-plus/at-ha35i.html]Š”Ž

Hello forum. So I have some new Grados. I need to feed them from my Macbook Pro. Narrowed it down to Centrance DACport and Nuforce HDP... HDP has moar features, but from what I can gather, the DACPort is friendlier to the Grados. I want something relatively small and portable for now, so tubes and desktop amps are out. So with all that in mind: 1) Can anyone recommend a good new-world red to go with venison? 2) What is your favoured Bloody Mary recipe? 3) Does anyone one know what this suspicious looking rash on the inside of my left thigh is?

Hello to all forum users! My name is Martin and this is my first ever post, so please bear with me if I would make any kind of mistake. I would really appreciate if I could get some help please. I need to convert 100v Japanese amp to be working with UK power supply. I believe it could be re-wired; i am just not sure what wires and what pins on PCB needs to be changed. Also, I am looking to install XLR balanced inputs, is there any simple schematic how to do it? My DAC has an pre amp so the volume control on the 323A is not necessary. thank you for your time and help best regards Martin

So I recently purchased a Yamaha RX-V365 A/V Receiver for use with my new 5.1 system. The receiver has 3 HDMI inputs and one HDMI output. I had intended to hook my Blu-ray player and my satelite receiver into the A/V receiver via the HDMI inputs. As it turns out this receiver will not send audio to the speaker outputs via the HDMI inputs. This seems pretty lame to me, as the whole idea with HDMI is to have one cable carrying evrything. It also seems that this is fairly common. My receivers manual says to use the digit output of my Blu-ray into the digital input of the receiver. That works fine for 2 channel playback, but the manual says that it's only compatible…

Oh SNAP! Just when I thought my wallet was safe Tyll goes and drops a bombshell like this thing: For more information have a look at the Sponsored Thread on Head-Fi.

Please do tell what tubes your using and how they affected the sound and what headphones you are using with those particular tubes.

Audio-gd Compass Impressions, not a review! Gear: Laptop, Foobar and MonkeyMedia, ASIO4all, AD900, HD650, Audio-gd Powe Cable. Hey all Head-Case. First off, nice to see so many of the excellent posters I respected at the other headphone forum here. I wondered where you all had gone, I mean once in a while I'll see a blue moon post, but not enough! I had a wonderful opportunity to be among the first 18 testers to own the newest headphone solution from Audio-gd. For, I feel this is by far the best option for me as a beginner into headphone amps and dedicated DACs. Audio-gd is a small company out of Beijing China, lead by their lead designer, Mr. He Qinghua,…

Heh. Since this place is ALL about the controversy right now and it's open season on craziness, GIVE IT TO ME STRAIGHT DOC! I loves my MPX3.

All my little boxes of little tubes are starting to drive me crazy. They are all over my desk, all around the house. I've read not to store them in drawers, because the constant opening/closing could shake things up, so I've been keeping them on the top shelf of a dark closet, but they must creep out at night and spread all over my desk. So what do you do with your unused tubes, and do you have any nice, tidy, tube storage solutions?

This amp just showed up on "the other web site" Does anyone have an opinion on this amp? What are the other tubes worth? http://www.head-fi.org/forums/f42/fs-singlepower-mpx3-slam-269408/ For the same money i could have this.. http://www.headphone.com/products/headphone-amps/the-desktop-line/2007-headroom-portable-desktop-amp.php thanks for putting up with the stuuupid newb. Lee Ross

Why do some amps have two volume controls? My HeadAmp KGSS has two volume knobs. I always set them at the same setting. I would prefer one knob and not have to set the volume twice or use both hands at once. They are stepped attenuators so it isn't too difficult to do so, but one knob would still be more convenient. Is there a reason for this?

Well I was a little bored last night so I opened up my PrimaLuna Prologue One and was very impressed by the point-to-point wiring so I took some pictures. Lower res versions here: http://head-case.org/photos/thumbnails.php?album=6

I just got an SRM-T1 (my first Stax amp) to go with 404LE (my first Stax headphones). I see there is an earthing terminal. Under what circumstances should I use this, and how should I use it? (Balanced cable specially made up?) TIA Nic

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Hello everyone, it's been years... (for anyone that remembers me anyway) I am researching what amp best suits my somewhat bespoke needs, and thought there might be some useful opinions here, especially since I've been rather out of it for ages. To cut a long story short, about one year ago I suffered an accident that damaged my ears, the result being that I have severely reduced dynamic range in my hearing. Though my sensitivity is normal and frequency response is good (i.e. little to no hearing loss), my pain and distortion threshold has been lowered to around 80dB. This means that for real music listening (classical in my case), I can manage with a level that …

I have a 2nd hand headamp aristaeus, the background noise follows the volume pot. I measured ac between L+/L- and R+/R-, the left is 3.48v when volume pot is turn to max while right is 1.74v, I swapped ecl84 and 12ax7 but still same value. Also I tried to adjusted vr p1, p2+,p3- but it didn't help, same value. May I ask how can I solve the issue? Thank you in advance.

Hi all, I just ordered my first tube amp. I have alway been a solid state guy, and was wondering what all this hype is about. I have a new pair of AKG K701 headphones, and figured that a headphone amp might be a good place to start. So I ordered a WooAudio WA6. Here is a link. http://www.wooaudio.com/products/wa6.html. I won't get the amp for about 7 more days, and am just curious if people can explain to me the differences I might be hearing over solid state. If nothing else I am really going to love the glow. People tell me that tubes are more laid back than transistors. Does this mean I will hear a more smoothed over detail in the sound? They also say that tubes don't …

Lets talk about the Moon Audio Luna, a headphone amplifier. All of the pictures, features, available model information, and specifications were taken from the Moon Audio website. The Moon Audio Luna headphone amplifier marries the resolving power of vacuum tubes to the very highest quality audio transformers to bring nuanced, dynamic sound to headphones. The Luna has been designed to minimize audible (as opposed to measured) distortion and allow the subtle details and dynamic contrasts of recorded music to pass unaltered to your headphones. The Moon Audio Luna uses vacuum tubes and Lundahl audio transformers to achieve the goal of giving you all of the m…

Would like to hear some thoughts from the experts here? Most commercial boards are thrash just looking at the head-case forum posts. or you guys are super sceptical or both. No picture of backside PCB (yet) though. Thanks for any insight Cheers

I'm wondering why blind tests are not done over at headfi. I've listened to a lot of portable amps and I dont understand the ratings and rave reviews some receive over other. Between my ppa2, pimeta and mini3, I dont think I can reliably pick out which amp I'm listening to at any given moment. It leads me to believe that the prettier the amp is, the better some folks think it sounds. On the other hand, maybe I have tin ears.

http://www.head-case.org/forums/headphone-amplification/7028-mysteriously-musical-amplifier-moth-300b-problem.html Well, I'm hearing the same symptoms on my Stax T1S now. This amp has no output transformers so... what's going on here <.< And no, its not just the new Shuguang CV181-Z that's doing this, the tube I was using before this was doing it too, albeit less audibly (probably because its only half the size).

I was wondering what you have been paying for your 6sn7w's. I saw a pair of metal base 6sn7w's that went for $459 on ebay, and another pair, again on ebay, for almost $500 .... both buy it now. I am trying to get a current market value of these tubes. I know tkam uses them, but anyone who buys these tubes or has any input, please post .... your input is welcome.