Hi, I posted this yesterday in another forum and a respondent suggested that I repost here (moderators, feel free to eliminate yesterday's post). Both are well respected companies, each with their own construction technologies with products similarly priced. Any experiences that you can share...

Hi, Both are well respected companies, each with their own construction technologies with products similarly priced. Any experiences that you can share with both or either is appreciated. Audioquest: Coffee http://www.audioquest.com/mini-usb-digital-audio/coffee Wire World: Silver Starlight...

Hi, I was recently having a chat with an experienced Headfi poster regarding my system which I am in he process of upgrading (new amp) and they were advising me that I might be limiting my systems performance because of my DAC's onboard USB-S/PDIF interface. They were recommending that I...

Hi,   I found a photo online of the inside of a Grace design m903.     I am curious as to whether from what you see you can make heads or tails of the headphone amp design (not the DAC) from this image? Besides the slick packaging and nice interface, electronically do you think that...

Hi, I started a long thread over in the summit Hifi forum a week or two ago searching for a better HF amp than my current amp which is a Grace Design m903. I was looking at amps between $1,000-$2,500. http://www.head-fi.org/t/629322/hd800-1-000-2-500-amp-sonic-bliss 8 helpful pages later I...

Hi, I am considering having a 4-channel Sigma/Beta 22 built to use with my HD800s. There are a number of upgrades available. I wanted ask this more technically oriented forum if they feel any of these are worthwhile: 1. Additional Sigma 22 power supply (comes w/ additional 80VA toroidal...

Hi,   I had an earlier post last week where I was asking about tube amps for an HD800.  But I have been thinking a bit more broadly about it and considering also solid state or hybrid amplifiers as well. The thought for a tube amp was because so many experienced HD800 users preferred them, and...

Gear: DAC: Grace Design m903 Tube Amp: ? Headphones: Sennheiser HD800 Single Ended Candidates: DNA Sonett 2 Eddie Current Zana Deux SE Woo Audio WA2 Other? Balanced Candidates: DNA Stratus Eddie Current Super 7 Woo Audio WA22 Other? Amp Criteria: maximize bass performance, sonic...

Hi, I have heard the HD800s with my Grace Design m903 and i thought they sounded great (no reference to compare to). I overwhelmingly see Headfi participants recommend tube amps for the Sennheisers. If I wanted to just use it as a DAC and buy a tube amp for the HD800s what amps would recommend...

Hi, What jazz albums have you been listening to lately that combine great musical artistry in performance together with a great recording to enjoy on your headphones? Here are 25 jazz albums that I feel combine both aspects: Branford Marsalis, Trio Jeepy Bucky Pizzarelli, Swing Live C.I...

Hi, I just auditioned some HD800s with some stock cables and some Cardas Clear cables in my home this week (library loaners). I did feel like I heard an improvement with my rig (Grace Design m903 using the 1/4" HF jack) in terms of bass response, airiness of the sound stage and smoothing out...

Hi, I will be auditioning 4 different high-end over ear headphones over the next 4-8 weeks. They are loaners and will be used on my home system which is great opportunity. I may get them two at a time, so I won't have the luxury of direct A/B comparisons. This will mean that I must rely on...

Hi, I have a Grace Design m903 and I am considering upgrading to some high-end cans. I use the m903's balanced TRS outputs for my active monitors so I use the 1/4" headphone amp outs for headphones. I am considering getting either: Audez'e LCD-2 Beyerdynamic Tesla T1 HiFiMAN HE-500 Sennheiser...

Hi, I have this DAC/amp ( Grace m903) and I use it to power AKG K 702s. Despite being 62 ohm cans, i need to run he amp at 80% volume to pwer these. It has an output impedance of 1.2 ohms and puts out 1200 mW @ 50 ohms, 240 mW @ 250 ohms and 100 mW @ 600 ohms. I use the balanced TRS outputs for...

Upgrade Options: Where to go from AKG K 702? Background: I am listing mostly to Jazz and blues with some rock and classical now and then. My iMac is my primary music source using Decibel and iTunes. I have a Grace Design m903 usb DAC-HF amp. The amp has an output impedance of 1.2 ohms and puts...

For use un-amped with my iPhone or iPad to listen to music on long-haul flights.  I listen to jazz, blues and classical. I appreciate, neutrality, musical detail and large/deep sound stage. I also appreciate quality of build and wearing comfort. Both of these IEMs are well regarded. I suspect...

Hi, I am on the verge of ordering a Grace Design m903 DAC/headphone amp to drive my AKG K702 headphones. They are rated at 62 ohms with a max power rating of 200 mW. The hf amp in the m903 has an output impedance of 1.2 ohm and has a max power output of about 1.2 watts @ 50 ohm and 600 mW at...

Hi, What DAC and HF amp should get for these cans and active monitors.(xlr connection) using an iMac ( USB or optical out)? Some units that units that I am considering are: Antelope Zodiac Benchmark DAC1 USB Burson HA-160D Grace m903 Larry DA-11 Vioelectric HPA V800 + tbd amp Other Some are...

Hi,   I purchased a set last week with a HeadRoom Micro Amp.  I have a very good DAC in my audio interface (RME Baby Face) which is hooked to my iMac via USB 2.0.  I am considering returning my Micro Amp and replacing it with a "better" amp. By better I am seeking a transparent, neutral...

Hi,   I own AKG K702s and I am thinking of purchasing Neumann KH 120 active monitors to use with my new iMac.  What integrated DAC/Headphone amps would you recommend to:   - Have a USB in from the iMac - Headphone out to drive 62 ohm AKG k 702s - Has XLR outs to connect to the KH...

Hi,   These headphones will be used with my iMac and my audio interface (30 ohm output) for both home recording (guitar) and general listening.  Since I will use them also for tracking isolation and lack of leakage when recording with a condenser mic is important.  I have idenified a number...