luvdunhill

If your looking for good resonance control without adding a ton of mass, Kevlar is a good choice.

what does she weigh so far? Also, I may have some extra environment unfriendly #12 lead shot that could work well for you. Where / how will you cut out the ballast chambers for the fill?

I'd ask Madisound or PartsExpress. They should be able to help you.

909: just to further the point, this weekend I did some driver break-in and pumped 20 Hz to a set of tweeters at low levels ... Also, I have done some spice simulation of a MM cartridge and often times, you're better altering the R and not the C loading. For example, the cartridge I'm looking at is a MM cart with 45mH inductance. The best loading seems to be 100pF (including cables) and 22K input impedance. I need to measure the capacitance of the cables, but I'm guessing they are not much lower than 100pF, so just a small amount of capacitance is needed.

MOTMOTMOTMOTMOTMOTMOTMOTMOTMOTMOT FOTMFOTMFOTMFOTMFOTMFOTMFOTMFOTMFOTM =)

I have a lot of things to post, but first things first.. I have mailed out all the JFETs. The numbers on the tape indicate the Idss that I measured for that device. Perhaps somewhat counter-intuitive, you may want to match the higher Idss value with the higher resistance values.. for example, measure the 4 22 ohm resistors and pair the highest value with the highest value written on the piece of tape for a given group of four. Reason being that forward transfer admittance (Yfs) varies directly with Idss. The inverse of Yfs is the apparent resistance of the JFET and we want to match the drain currents across the four JFETs. To to this, we want to ensure that 1/Yf_i + R_i is close the the same value, for all pairs i.

even with moving coil you should consider using a small amount of capacitance if your preamp doesn't already include it. Again, this acts as an input filter than enables the preamp to operate more efficiently.

it is a high pass filter that is used to protect your drivers from subsonic frequencies or so called "woofer pumping". Since your drivers cannot reproduce frequencies under a certain value, this filter protects them by enabling them to operate in their intended frequency range.

then you don't understand what it's used for

Sanyo eneloop 16 x AAA @ 800mHA. Hope they work pretty well.

how short sighted of me

I'm glad you are enjoying it. I really preferred 100R when I was running the DL-103D (IMHO the ultimate of the series). Did you have a chance to try the couple different opamps? I had a circuit drawn up to use the National opamp, but just never had a chance to do anything with it. It was basically a Bugle that was designed from the start to handle LOMC. Maybe one day I'll revisit it

I'm happy waiting (even without communication), but is there some sort of cut-off point for trying to pursue a refund via PayPal?

step-down transformer? cannot be too much, as their replacement part list price is reasonable. Go to the German version of the website then look for the price list for replacement parts.

I don't think it's too overkill.. Just lower the bias and your good to go. Holy slew rate though!

Spritzer: What about giving one of these amplifiers a go for the SR-007: -innoxx audio- High voltage tube amplifier for esl (electrostatic loudspeakers)

please use the subsonic filter. It's there for the safety of your system.

yup, I have some of that on hand I think this is what AMB uses for his internal wiring, but I could be wrong.

perhaps for the input, the Cardas shielded wire would be a good option. I'm thinking about trying those for myself. Also, all the rest of the devices have been matched and will be mailed this week. Thanks for your patience (except DigiPete).

holy Doppler effect batman!

I dunno if I'd call that an idler..the motor shaft is coupled to the "pulley"..

well, everything is an option for DIY, right? =)

great pun