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Pursewarden
0
Apr 1, 2023
I've had a Cayin CS-55A integrated amp for a couple years and I love it. I use it primarily for headphone listening - Focal Elear and Audeze LCD-2. If the HA-1AMK2 will be a significant improvement over the CS-55A headphone output, I will jump on this in a second. Cayin makes great products at a very reasonable price point. But I can't find specs for the headphone output of the CS-55A anywhere. Does anyone have a sense of how the HA-1AMK2 will compare to the headphone output on the CS-55A? Any thoughts would be much appreciated.
Fayne
2588
Apr 1, 2023
PursewardenThe CS-55A likely provides higher power output. The headphone jack is more or less directly wired to the 8Ω terminals. Even in triode mode, the push pull of EL34/KT88 is going to have a lot more juice than a single ended EL84. Assuming my ohms law math isn't overly wrong, we're talking something like 4-10 watts (depending on triode/pentode mode and if the resistors on the headphone jack pcb are in line with the signal or are for dealing with floating a ground) for 32Ω cans. The HA-1MK2 likely will sound better with sensitive cans than the CS-55A. Probably a lot more euphonic, with all those extra harmonics not getting cancelled out.
Eridani
0
Jul 23, 2023
PursewardenIs the headphone jack on the CS-55A just for convenience? Does it go through the tubes at all?
(Edited)
tutetibiimperes
266
Jul 23, 2023
FayneIt would be interesting to see if it puts out full power through the headphone jack or if there’s an inline resistor or voltage dividing network. Primaluna runs their headphone outs directly from the amp, but they unfortunately use a voltage divider so that you can’t get full amp power through the headphone jack.
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