Discuss Studio 2|4 / 24c, 2|6 / 26c, 6|8 / 68c, 18|10 / 1810c, and 18|24 / 1824c USB 2.0 Interfaces Here
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I measured the relative gains of the 8 channels on my 1824C @ 440 Hz and 2 kHz.

I got some really poor results, am wondering if this is normal.

I am NOT a professional recording engineer. I had noticed some substantial differences between the 8 channels so I did my best to try to measure them.

I used a tone generator and an SM58 into each of the 8 channels at both frequencies. Got similar results for both.

In both cases there was about a 20 dB spread between the most and least sensitive channels. For 440 Hz:

Ch.
1 -34.7
2 -13.5
3 -27.2
4 -33.5
5 -25.7
6 -26.1
7 -26.5
8 - 32.1

Channel 2 was consistently 10-15 dB more responsive than the other 7. The spread between channels 1, 3-8 was about 9dB.

Anybody have insight into what this means? I've already looked into repair and apparently Presonus does not support this device any longer.

Studio One 5.0.1 / Studio 1824C USB Midi I/F
Lenovo Y510P, i7-4300 MQ, Quad, 2.4GHz, 16GB RAM, Win 10, 700GB SSD
Gibson Les Paul, PRS McCarty, PRS DGT, Taylor 814, Taylor E14, Yamaha FG-300
1967 Fender Bassman, Mesa Boogie Mark 5:35
UA OX, BOSS Waza, Tone King Ironman II
Warm Audio WA76, Lexicon MX-200, TC Electronic M350, dbx 166, Presonus Channel Strip, BBE 422 & 882

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