Sennheiser PC37X randomly goes bad after disconnecting the cable ?
Greetings, Yesterday I was using my headset like normal with my macbook, just listening to music and on a call with people like usual, and the headset was perfectly fine. The stock wire that came with the headset is extremely long and yesterday it annoyed me very much that it kept getting tangled with itself, so I decided to see if the cable is replaceable. I pulled out the cable from the headset and saw the adapter, and looked online for a replacement. Upon plugging it back in, the audio sounded extremely muffled and washed out. Im not sure what I did wrong to make it mess up like that as I've always taken good care of it, ive had it for about 2 years and its always just been chilling on my desk, but anywho I thought the cable just went bad and ordered a replacement. The replacement came, and the issue is still persistant, so I am not sure what the issue is I've tried multiple different headsets and the issue is not with the port, and I also tried it with my windows laptop and...
Apr 23, 2024
- Frequency response: + 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHz
Balanced Output:- THD: -130 dB, 32 ohms, 1 mW: 0.000032%
- THD: -130 dB, 32 ohms, 100 mW: 0.000032%
- THD: -122 dB, 16 ohms, 1 mW: 0.000080%
- THD: -122 dB, 16 ohms, 100 mW: 0.000080%
- Gain: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB), selectable via front switch
Single-Ended Output:- Output power: 1800 mW, 32 ohms, <1% THD (watts per channel)
- THD: -135 dB, 300 ohms, 100 mW: 0.000018%
- THD: -133dB, 32 ohms, 100 mW: 0.000022%
- THD: -130 dB, 16 ohms, 1 mW: 0.000032%
- THD: -125 dB, 16 ohms, 100 mW: 0.000056%
- Gain: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB), selectable via front switch
We’re on track to meet our estimated ship date of October 31, and we'll check back in around the middle of October with the status of the shipment.I'm sorry, am I reading right that the Balanced output allows one-thousand six-hundred and twenty-four decibels of gain? Are we trying to distort spacetime with our headphones?
Yes, we are... But I do think it's a copy+paste error where the decimal points were dropped. I don't even think the tech exists that can measure -13 kdB, and this amp certainly can't output 18 kW
Thanks for the update :)
What about those of us that have sources with 4V or 5V outputs? How does this change affect us? Also, what are the output power specs now?
Client of the first drop here.
Thanks
The 789 can tolerate the following rms input voltage from your DAC without clipping:
-10dB Mode: 7 V 0 dB Mode: 7 V +10 dB Mode: 2.1 V
And on the 789, the RCA unbal and XLR-3 bal have same input voltage tolerance.
So for my DAC that outputs 4.5Vrms, which of the following is correct? - I should make sure not to use the highest gain or - I can use the highest gain without going past a certain volume
Thanks, Traian
Thanks for the quick and detailed replies.
Just to confirm, are you implying that I should avoid the maximum gain altogether without any form of prior attenuation? Or I can still use it by making sure to select a lower volume on the amplifier's knob?
Thanks, Traian
I must say I am a bit disappointed, as I thought the XLR input could handle pro levels without issue (typically up to +24dBu at 0dBFS).
If 7V/19dBu is the clipping limit (1% distortion?), then what max input voltage should be considered to keep the stellar performance of the amp unaffected?
The 7V/+19dBu output is actually unclipped. Clipping (1% THD) starts a bit higher than that.
I don't think we ever released any specs stating support for +24 dBu sources. Supporting +24dBu input would have required a 4th position on the gain knob and more relays internally. Due to CBOM budget limits, something had to give.