herman

Responses from herman

How much DC is considered safe?
An 8 ohm speaker with 32mV across it would dissipate 128 microwatts or .000128 watts. I think you are safe. 
Suspended vs. Non Suspended TT on Concrete Floor
Jeff, what is a sonotube? I have the same situation and may try that approach. 
Speaker efficiency vs. power requirements
Your math is Ok, but 90 dB is not the starting point for your dynamic range. Dynamic range is the difference between the softest and the loudest, and 90 dB is pretty loud to start with. 120 dB is EXTREMELY LOUD, equivalent to a jet taking off. 140... 
A quick question?
If you have to put your ear to the speaker, it is not a problem. Forget about it. 
Words From the Wise
1. Start with a great front end. Information lost or corrupted at the beginning can't be corrected with speakers.2. Tube amps are generally more musical than solid state. For the same money initially invested, tubes are better. They just cost more... 
Original Packaging, you gotta have it.
I suggest using UPS and letting them pack it. They offer a service where they put that expanding foam stuff around the item inside a heavy box. Yes, it will cost you about $15 to $20 depending on the size of the item but I've had very good luck wi... 
The best way to shield components from each other?
Some (most?) shielded speakers are not actually shielded due to the afore mentioned difficulties in constructing an effective magnetic shield. The trick is to take an additional magnet of equal strength and align it in the cabinet so the magnetic ... 
DC Power/AC Inverter power supply
The inverters I am familiar with don't produce a pure sine wave. But assumming that they do, the power out has to be less than the power in because nothing is 100% efficient. Since the formula for power is I x V = P (current times voltage = power)... 
Cable shoot-out: Part IV
chicken, egg ?egg, chicken ? 
Cable shoot-out: Part IV
I would offer the following for your consideration. You are putting the cart before the horse. It sounds like the room is the weak link and that should be your focus at this point. Cables should be the final touch on a system after optimizing all ... 
Speaker Cables, One side longer- bad idea?
Hi Bwhite, Any job openings at your company? If you have the time to post all that at work AND get paid enough to afford this hobby, I'm in.Interesting thoughts though. 
Audio Cost Allocations
The most important component in your system is your front end. Find what like and them build your system around it.garbage in = garbage out 
Nashville Audio or Home Theater Shops
There are only two high end stores. The better one is Nicholson's (ask for Tom Berry or Larry Staples), they usually have a pair of Pipedreams set up. The other is Audio Video Environments. The last I checked they were more heavily in to the home ... 
Soudstage issue
It is pretty common to have the piano spread across the soundstage. These recordings are done with the microphones close to the piano so the perspective when they are played back is that of a person playing a piano or standing right next to it. It... 
Mark Levinson No.37 and 36s Vurs ML 39 CD Player
Don't take my word as the final answer, but it seems I remember my dealer telling me that a 39 used the same transport mechanism as the 37 and the same DACs as a 36, just in a single box. If that is true, you would be going from a 36S to a 36 plus...