Ma6Jia 0 Report post Posted March 16, 2004 Hi all Something just to share with you all. A 2-in-1 beauty, as descripted in the title. - Frequency Response 10 to 40K +/- 1 dB - S/N >= 90dB - Distortion <= 0.3% - Output power >= 1W (30 ohm) - Match headphone impedance from 10 to 600 ohm Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 16, 2004 Front inside view. Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 16, 2004 Using ALPS volumn control. WIMA/PHILIPS CAP. R type transformer. Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 16, 2004 Line-in on the left which is connected to the PCSP. Pre-out are on the right is not connected. Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 16, 2004 (edited) From the bottom window, can see the two tubes lighted up. Before it is heated up, the sound is quite harsh. Once is heat up, you can fry an egg on top of the unit. Edited March 17, 2004 by Ma6Jia Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 16, 2004 Anybody interested to have some audition? Share this post Link to post Share on other sites
av98m 0 Report post Posted March 16, 2004 Nice! But doesn't the egg-frying hot surface present a safety concern? Share this post Link to post Share on other sites
Q00 0 Report post Posted March 16, 2004 Nice! Any specs on this unit? Is it a tube amp/preamp? Share this post Link to post Share on other sites
julery 0 Report post Posted March 16, 2004 haha same same cans but not headamp, yours the POWER! Share this post Link to post Share on other sites
augustineRS 0 Report post Posted March 16, 2004 Yours look great too. Have the same cans too, but ampless... Share this post Link to post Share on other sites
hacknet 0 Report post Posted March 16, 2004 what tubes are they? what config are they in ? SRPP? Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 17, 2004 av98m: I have not try to fry an egg, but the hot surface is definitely not so good for the kids. I had turn it on over night, about 6~7 hours, with a pcdp run through out the night, it survive after one week. Q00: It is a tube headamp cum pre-amp. julery: Can see that you love this can too ). auqustineRS: welcome to the discussion. hacknet: The output power tube is Hitachi K214/J77 field effect tube. Sorry I don't know what config it is. Share this post Link to post Share on other sites
hacknet 0 Report post Posted March 17, 2004 hmm... wow... field effect tubes... sorry to break the news but the K214/J77 are actually Field Effect Trasistors. also know as MOS-fets. the tubes don`t look common thou... Share this post Link to post Share on other sites
Ma6Jia 0 Report post Posted March 17, 2004 ya, may be you are right it is a field effect transistors. in fact I am not sure there is this thing call field effect tube. may be I have to pull out the complete PCB to take a look. sorry I don't know much about tubes. Share this post Link to post Share on other sites
av98m 0 Report post Posted March 17, 2004 av98m: I have not try to fry an egg, but the hot surface is definitely not so good for the kids. And small animals too I guess. Don't want to come home and find fried chinchilla in my room! Share this post Link to post Share on other sites
