DML Guitar speakers: Henry de Groh DML "panels" made with exciter inside the guitar
2023 ж. 11 Сәу.
3 205 Рет қаралды
Here I demonstrated and share testing of a 2.1 system consisting of two DML guitar speakers and a subwoofer. These should be listed for sale in my deGrohAudio shop on Etsy (www.etsy.com/shop/deGrohAudio...) and on ebay (www.ebay.com/usr/henrysutopia) Two tests (frequency sweeps) are presented: one using a Fosi BT30D amplifier; the other using a Dayton Audio DTA-2.1BT2 amp. Each guitar has one exciter attached near the sound hole on the inside of the guitars top; exciter: DAEX25FHE-4 from partsexpress.com
The sub is passive, sealed, and uses a 12" Dual driver.
And a shout out to Tech Ingredients for sharing so much DML testing with us all here on youtube.
Cool idea. Would be fun to see the the distortion measurement of the guitar speakers.
Interesting. Feel better
How do these compare to the normal dml panel speakers?
They sound excellent, similar to the panels, with very good dispersion (great off axis performance) and very wide frequency range. The major difference is the guitars have lower SPL (they are not as loud). the panels are like... 95 SPL sensitivity while the guitars are around 90 SPL. so panels are super efficient while the guitars are just very efficient. ;-)
"promosm" 😘
So you are saying, protect the guitar from all the "pleasant" sounds... BTW, that is one horrible looking sweep...
No, I didn't mean to say the guitars need to be protected from "pleasant" sounds, and after watching my post again, I don't know why you are asking that question. The guitars don't reproduce low frequencies well, thus low frequencies (below ~130 Hz) should not be sent to them. Thus a capacitor should be used in series between the amp and guitar to filter out low frequencies. A very low amount of smoothing was used, and tests were done in my basement, not some acoustically damped studio. the final sweep with the Dayton Audio amp I think is good considering the... acoustics of the room. And, the sound demo sounds great.