Will I be able to drive these with a home stereo amp? I have the Hifiman 4xx and must push the amp to about 1 o'clock for a desirable volume, which sound great btw. I also have a fiio a5 and the e17k alpen and the Earstudio es100. Just wondering if anyone has experience with smaller maps. The home stereo amp is strong Harmon kardon from the early 90s.
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lionelsbox
8
Dec 15, 2019
If it's a 90s amps, most likely yes. What's the amp specs for the headphone socket? Mine is exclusively plugged into a NAD C320BEE (early 2000s) amp with 220 ohms headphone socket. Sounded brilliant. Powerful & muscular sound, smooth mids and very clear highs. I couldn't get the volume knob past 8.30 before my ears start to hurt. I've done back to back comparison between the NAD and Schiit Magni 2 Uber and couldn't split the two apart. Newer hifi amps however, unless specified, is likely to have lower impedance as times (headphones) have changed and therefore less suitable to drive traditional high impedance, high end cans like 650 (6XX).
Brutus64
26
Dec 15, 2019
It's a Harmon kardon AVR 30. I've looked all over to find info on the headphone jack to no avail. It powers the 6xx decent. The 4xx on the other hand, not as well. I have the JDS Labs Atom, and it isn't any better pushing the 4xx. Thanks for your response.
jgillingham
15
Dec 5, 2019
I tried this with a Yamaha RX-777 stereo receiver (100 Watts per channel) from the early 2000s. It has more than enough power. Volume control at 9 o'clock is very loud. The Yamaha drives the headphone jack through 470 Ohm resistors connected directly to the main amp speaker outputs. This is common in old stereo receivers and integrated amps. The result is that they will drive a lot of power into high-impedance headphones like HD6XX (300 Ohms) but not so much into low-impedance phones like HE4XX (35 Ohms).
Brutus64
26
Nov 29, 2019
Amps, not maps.