rcrump

Responses from rcrump

Parasound P/LD-2000
Daltonlanny, I suggest what happens in Las Vegas stays there until the unit is introduced. Yes the unit is being designed by CTC, but it is a long way from production. We were contracted by Parasound well over a year ago, but things are not moving... 
Does digital affect analog sound??
CDP, DACs, Transports and FM tuners affect analog adversely......Each needs to be isolated from not only analog, but from each other. Best thing I have found to use to accomplish this is several Bybee modules, one for each non-analog piece.......I... 
Parasound HCA-3500, Am I Crazy?
Hey Sean, thanks for the kudos, but Curl was the one who found the problem when he started testing the JC-1 prototypes and luckily there was a second source for the part originally developed by IR that didn't have the curve tracer drawing circles ... 
Parasound HCA-3500, Am I Crazy?
Hey Plato, International Rectifier makes some mosfets that are set up as switches and strangely enough Harris makes a replacement part that works well and does not spew a ton of second harmonic......Second harmonic comes across as a bright etched ... 
Parasound HCA-3500, Am I Crazy?
Audio girl, the HCA 3500 has a ton of 2nd harmonic distortion compared to the JC-1 and that is probably what you like and dislike about the 3500........I changed out a couple of mosfets and the 2nd harmonic dropped dramatically and the two amps so... 
Parasound JC1's vs. Sim Audio W10
The pricing of the JC-1 will go from 6K/pr to 7K/pr effective 5-1-05 due to increased parts costs.....Bob CrumpCTC Builders 
Wilson Audio, Talon, Rockport and B&W
Jtinn, tired of you badmouthng another product to promote a brand you sell.......Merak-Sheritan's are OK as used them in 2004 at the CES.......I prefer my Rockport Syzygys better, but like the Antares better as well........There are some pix of th... 
Parasound JC1's vs. Sim Audio W10
Hi Jordan......I spent a couple years updating the HCA-3500 before specifying parts for the JC-1s. I spent over ten years working out the passive parts for the CTC Blowtorch.......This included break-in of 30-60 days per change so lots of patience... 
Parasound JC1's vs. Sim Audio W10
Both the Nichicon and the Black Gate use an unusual electrolyte and there are some oil filled caps that take a while to break-in as well.........JC-1s go through a similar phenomenon as the VR4jrs as imagine they were dull as dirt from 35-55 days ... 
Parasound JC1's vs. Sim Audio W10
Brrgrr, the amps go through ups and downs during break-in, but the worst is the first thirty days whilst they go between brilliant to thin......They settle down after thirty days and go dull and finally wake up at about 55-60 days and stay there..... 
Parasound JC1's vs. Sim Audio W10
Hi Shane,Break-in time with the JC-1s is horrible as it takes right at 30 days for the thinness to go away and almost 60 days for units to open up. Why? Probably the huge Nichicon caps if I had to point a finger, but not certain........ 
Parasound JC1's vs. Sim Audio W10
Hi Shane,In low bias the unit will go into AB mode at about 10w which is audible with my Rockport speakers and isn't in high bias which allows about 30w of class A. I normally run the amps 24/7 in low bias and flip the switches to high bias when I... 
Parasound JC1's vs. Sim Audio W10
Gladstone, I run my JC-1s in high bias 24/7 and have for a couple years for both my Rockports (an easy load) and my Sound Lab M-1s (tough load) and curious what speakers are a tougher load than the Sound Labs? I chose the parts in the units and wi... 
Buy an Audio Research SP10 MkII or an SP11 MkII ?
Within six months of purchasing the SP-11 I had purchased a Vendetta SCP-2 phono amp which ate the SP-11s phono stage in terms of musicality and noise.......I would go for the SP-10 which is very musical and quiet enough for medium output moving c... 
parasound 3500 verses parasond jc1
Steve, sorry but suggest you measure it........We did and found a ton of 2nd.........Glad you and your customers like the brightness this imparts on the sound as it saves $5 or so in parts for the revisions along with maybe ten minutes of work.......