clemenules
Member
- Joined
- Jan 23, 2020
- Messages
- 22
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1. How likely is it I damaged my speaker based on situations below?
2. How do I test if my speakers are working to spec?
Equipment:
Speakers elac dbr62
DAC minidsp 2x4hd
ADC / mic interface Motu M4
Mic SoundID Reference Measurement Microphone
Amp IMG Stageline sta 800d (= 2x Hypex ucd400 = 2 x 400W @ 4ohm)
Decibel meter c weighted
Laptop with REW
Situation 1: accidental but short (1s) full blast signal through speakers.
Situation 2: full range sweeps @ 75db c-weighted @ 3m
Situation 1:
Dac has 2v output unbalanced, amp has 1v input sensitivity unbalanced. Hence, I set the minidsp at max - 6db, thinking this will ensure my amp NOT sending a clipped signal. Before finishing Rew/dac/amp and audio interface to get to 75db at listening position, minidsp is at - 6db but amp and windows are at 100%. Some background app decided to give me a notification, accompanied by a short windows "chime". At full blast. It lasted only 1 or 2 seconds, and I'm not sure if it was my speakers or my ears distorting at the moment, but it did not sound well. Could this have damaged my speakers? One song in particular sounds sometimes wonky in the first few seconds, and sometimes not. I'd like to know how likely it is I broke my speakers and or how to exclude them from the problem discovery.
Situation 2:
After I had completed a bunch of sweeps I watched my speakers while a sweep was running (instead of watching my laptop). No clicking sounds, but the movement of the woofers on the dbr62 was EXTREME at the low end of the sweeps. Sweeps were done at 75db c weighted at 3m. Could this have damaged my dbr62 woofers? Should I refrain from doing full range sweeps with bookshelf speakers?
Thanks for any input!
2. How do I test if my speakers are working to spec?
Equipment:
Speakers elac dbr62
DAC minidsp 2x4hd
ADC / mic interface Motu M4
Mic SoundID Reference Measurement Microphone
Amp IMG Stageline sta 800d (= 2x Hypex ucd400 = 2 x 400W @ 4ohm)
Decibel meter c weighted
Laptop with REW
Situation 1: accidental but short (1s) full blast signal through speakers.
Situation 2: full range sweeps @ 75db c-weighted @ 3m
Situation 1:
Dac has 2v output unbalanced, amp has 1v input sensitivity unbalanced. Hence, I set the minidsp at max - 6db, thinking this will ensure my amp NOT sending a clipped signal. Before finishing Rew/dac/amp and audio interface to get to 75db at listening position, minidsp is at - 6db but amp and windows are at 100%. Some background app decided to give me a notification, accompanied by a short windows "chime". At full blast. It lasted only 1 or 2 seconds, and I'm not sure if it was my speakers or my ears distorting at the moment, but it did not sound well. Could this have damaged my speakers? One song in particular sounds sometimes wonky in the first few seconds, and sometimes not. I'd like to know how likely it is I broke my speakers and or how to exclude them from the problem discovery.
Situation 2:
After I had completed a bunch of sweeps I watched my speakers while a sweep was running (instead of watching my laptop). No clicking sounds, but the movement of the woofers on the dbr62 was EXTREME at the low end of the sweeps. Sweeps were done at 75db c weighted at 3m. Could this have damaged my dbr62 woofers? Should I refrain from doing full range sweeps with bookshelf speakers?
Thanks for any input!