rodman99999

Responses from rodman99999

Here to learn and more
I’m using a 9505(modded), to run my woofers. Stock, they put out 375 WPC, into a 4 Ohm load. Page 2 of the manual states they don’t recommend trying to run less than an 8 Ohm load, when bridged. http://www.hafler.com/pdf/archive/MAN0587D_9303_9505... 
Component Placement
With all the money spent on special racks, applications(chassis damping, etc), & various vibration isolation/elimination devices, to shield our amps and/or drain vibrations away from them, it seems totally counterproductive, to place them dire... 
Shipping out of country.
PCs and interconnects are all I’ve ever been willing to ship to other countries. As jl35 mentioned, sometimes the buyer will balk at the price declaration/insurance, BUT- that’s on them. USPS has provided the only realistic pricing, with their Fla... 
SB Acoustics 12” SB34NRXL75-8
Please, forgive my lack of comprehension(Oldtimer's Disease strikes again). 
SB Acoustics 12” SB34NRXL75-8
Make that, "Any ADVICE..."(typo). 
SB Acoustics 12” SB34NRXL75-8
You don't mention anything about a midrange or tweeter, without which, there's no need of a crossover and an unsatisfying result would be a given .   Any advise, regarding cabinet sizes,  compatible components and crossovers, can be gotten from th... 
Why so few speakers with Passive Radiators?
Legend- With a little research, you’ll find that both a properly designed/implemented radiator, and the mass of air in a vent, act as resonators and reinforce the system's TUNED bass response.  Below the tuning point, yes- cancellation occurs(and ... 
Redone kits
https://www.simplyspeakers.com/speaker-recone-kits.html or(especially, if you’ve no experience) http://www.millersound.net/ 
Why so few speakers with Passive Radiators?
Systems utilizing passive radiators ARE, "vented" systems. The Thiele-Small parameters and calculations, are identical for both. Only the application(vent or radiator) of the results(mass of port air/size and weight of the radiator), varies. https... 
Wow! Vintage HiFi magazines.
These guys offer reprints, of some of my favorite old rags(ie: Glass Audio, Speaker Builder, etc)   http://www.audioxpress.com/tags/Glass-Audio 
Tube or Trasistor
I’d like to have more info on the amps, as well. Input tubes(ie: phase splitter and driver) can make a major difference in your presentation. Especially, the thin, uninvolving presentation, that will result from tubes at the end of their lifespan.... 
A "primer" on soldering...
Good article, George. I’ve always used small alligator clips, as heat-sinks, on the leads of whatever I’m soldering. Can’t hurt, to be safe. I also like using solders with low melting points, and silver content. My faves: https://www.parts-express... 
Recapping your amp
A timing belt won’t degrade your engine’s performance, before it fails(completely). The point of my references was, that(electrolytic) capacitors do. Of course: to many, "...still working...", is good enough. Do you replace your racing tires, AFTE... 
Recapping your amp
Aluminum electrolytics can even go bad(via dielectric polarization), given enough time, on the shelf and unused(http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.823.6133&rep=rep1&type=pdf). Of course, heat and cycling, also take th... 
Speaker boxes. To rebuild or not to rebuild
@roxy54 - I would have mentioned that, but was trying to be kind(iow: +1).