Setup: I bought THX 789 for the massive output of idk 6W/32ohms, but whenever I try to use my Sundara/Modhouse Argon/HD600/Arya V2/...whatever, I cannot reach decent listening levels in terms of db without getting this scratching/hissing noise in the background ... I think it's distortion. (DAC I use: Geshelli labs - J2, set to max volume) Settings: With an XLR output, gain setting level at 2/3 and the volume knob set to 2-4 o'clock, hearing distortion from a 250-350$ THX amp shouldn't be a thing, should it? With somewhat hard to drive headphones, I'm not reaching 70db, but I can already hear this godforsaken noise on all tracks without a constant stream of sound. If you dare to up the volume past 4 o'clock, or past 12 on gain setting 3/3, this noise becomes so loud, it might as well be an additional instrument Music: The tracks I usually listen to involve so few instruments, that you don't have a constant stream of sound. (e.g. Creep - Lena Hall) I'd love to get some feedback!...
Jun 5, 2024
Rules to Remember
Power Calculation Example Let's use the B&W 703 S2 speaker, which has a specification of 89dB spl /1W/1m. Most people will be using two speakers. This means double the power so it effectively makes the speaker specification 92dB SPL /1W/1m, or 3dB higher, as per rule #1. Now let's look at how rule #2 works. Every time you double the distance from the speaker, SPL decreases by 6dB. The table below shows how our 92dB from earlier decreases with distance.
Refrences: (1) https://www.ecoustics.com/articles/ideal-spl-home-theater/