post #76 of 89
3/22/07 at 9:01pm
I've got a Trends TA-10 and am pretty happy with it. I've got 4.7 ohm resistors jumping the terminals on mine and I did notice an improvement with them.
Does anyone have any info on modding this amp? I'm happy enough with it that I'm not likely (at least in the near future) to be spending thousands on a RWA or Firstwatt or anything when this is doing the job as well as it is. But I can't let the wallet off that easily
I was thinking of ordering another one of these amps, getting a nice enclosure, putting it all in one fullsize case, build the power supply into it so that it's plugged in with a regular kettle lead rather than the adaptor thing that comes with it. Upgrade whatever internals will make a difference, maybe do something to lower the gain so that I can use more range on the volume knob (I'm the same, no more than 9 o clock at the moment), maybe sort out that channel imbalance (though it occurs lower than my regular listening volume so it's not really a problem). I'd also like a proper XLR connector so I don't need the K1000 pigtail. Maybe add some ye olde style meters on the front of the case for some audiophile bling.
I'd use my current TA-10 during the build and then stick it up on the classifieds.
I'm fairly handy with the practical side of DIY and a soldering iron, but have no idea about the theory. I couldn't go about modifying the workings of the amp without having some guide or instuctions to follow. I could manage the case, the power side of it, the output connector, maybe the meters myself.
Strange, just got my second set and these sound more full with great bass even through the SI t-amp which on my other set sounded thin. Gonna run them through the Hafler to see how they do in the morning.
Is this a case of older K1000 being bassier than newer K1000? What's the serial number of the two headphones in question?
Oh, and have you measured the DC offset of your SI t-amp? I know a high offset could be detrimental to the K1000's health, but I don't know how much would be too much.