Parasound JC-1 Heat Dissipation


I am looking at purchasing a pair of Parasound JC-1 monoblocks based on the excellent feedback both here and other places. After a flurry of upgrades this year, the power amplifier is the next piece of equipment to upgrade. I have made the decision to stick with solid state since I like keeping my system powered up at all times and the Wilson Benesch loudspeakers like lots of power.

My current system:
- TRL Marantz SA-14 SACD player
- Conrad-Johnson 17LS tube preamplifier, Amperex Holland 60s tubes
- Rotel RMB-1095 5X200W multichannel power amplifier
- Wilson Benesch Discovery loudspeakers

My only concern with the JC-1s is the amount of heat generated since they run the first 25/10 watts in Class A mode and consume 250W in idle mode. This is of concern especially during the summer months.

My audio room is sealed, 16.5ft X 12.5ft X 8ft, and is located on the main floor of my house.

Also wondering if I can reduce heat dissipation if I set the bias switch to low (10W Class A) and only switch it to high during listening sessions. If I do this, does it take time to warm up to fully take advantage of 25W potential?

Also if I have a fan blowing on the power amplifiers outside of listening sessions, is this of any use?

Any feedback from others who have a pair of JC-1s in a similar room is appreciated.

Also the match between the JC-1s and the C-J preamplifier which only has unbalanced output.
shuang

Showing 2 responses by rhyno

my room is slightly smaller than yours, and you'll likely find as i that any amp that throws off heat (the JC1s do, esp in high bias) will heat up the room to an uncomfortable degree in the summer.

JC1s are very nice amps as well, and i could live with them if i could live w/ the heat---low bias might work, but i wasn't about to try and fail.

solution i arrived at: macintosh 501s. ice cold 24/7 and great sound.

rhyno