Originally Posted by BassMojo
How warm do the A23s run? I am also running A21/51 amps for my mains and an older 2205A for Atmos. I may consider replacing the 2205A to a pair of A23s to keep all amps in the Halo line, but they like the 2205A would be located in an enclosed cabinet. Thanks in advance.
The A23 runs a bit warmer than the A21. As someone else said nowhere near as warm as the A51. That said, all of my gear is located in a custom 4 TEIR VTI OPEN RACK.
After months of research I went with the VTI BLGSB404-13 (and ordered an additional 9 inch rack) with smoked black glass shelves. It looks fabulous and goes great with either the silver (which we have) or black PARASOUND Halo amps. *I didn't use the black mesh "wire management" that was included with the rack
Each Halo power amp and my ONKYO PR
-SC5508 Preamp has its own separate rack shelf and I intentionally designed it so that absolutely NOTHING IS STACKED ON TOP OF ANY OF THE POWER OR PRE AMPS. The result is all of my amps run cool to slightly warm even after 5 to 8 hours of strenuous use because there is a free flow of air surrounding all four sides and I chose higher shelf to provide "breathing room" above each of the power and pre amps as well. The ONKYO and the A23 have shorter height shelfs because they don't generate as much heat as the A51 & A21 and need less breathing room. This set up provides maximum ventilation. *The VTI rack was one of the best investments I made, worth every penny. The added benefit is that the VTI rack system is flexible and can be added to, or rearranged as additional rack space is needed.
*3 Important facts to consider: 1) Proper ventilation for electronic equipment like this is vitally important because excess heat destroys electronics equipment. 2) If you are going to enclose this gear in a closed cabinet it is essential that you also incorporate some sort of ventilation, fan/cooling management system into the cabinet to dissipate the heat. 3) Unlike the A21, A31, A51, the A23 DOES NOT HAVE EXTERNAL COOLING FINS designed to dissipate the heat generated by the power amp. So yes, the A23 does run warmer but it's not hot to the touch in our set up.
I hope this helps