ABGs get shit on in this community quite a bit. Almost as much as slap haha.
The main complaint is that they are essentially too quiet to be heard. There have been wild claims made in this sub about how they are essentially useless when unamplified. This never jived with my own personal experience. I play mine nearly all the time during the summer, whether it's on the deck, at the beach or around the campfire, and I've asked many many times if people can hear me, and they can hear me just fine. So what gives?
Part of it is undoubtedly because I play very aggressively: lots of slap/pop, lots of strumming chords, etc. But still it seems as though people are in disbelief when I tell them I can be heard no problem when playing around the campfire with a few acoustic guitars and hand drums and singing.
I'm a scientist (I perform and publish research in AI and computer aided decision making, but it still counts as "science"), so why not do a little experiment. I used the following:
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Scosche SPL 1000 sound pressure tool. It's not the best, but I've been using it to check mix levels for years and it's consistent. It has a function to measure the max SPL which is what I used. I think it was targeted at people to use for those "loud stereo" contests that people sometimes have where they put a 10,000 watt stereo into a Honda Civic.
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Warwick SSII-5 with new strings
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Ampeg BA-112v2 set at volume "1", which is my normal in-my-living-room practice volume - it can be comfortably heard over regular talking but isn't so loud as to wake up the family when they are sleeping.
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Ortega DS5 acoustic bass with mostly new strings (they've lost some zing)
I measured the SPL at 3 distances: 30 cm, 300 cm, 635 cm (which were just convenient measuring points in my living room that didn't have objects or walls between them and my amp - basically my longest straight run). Averaged over 3 trials.
In all cases both the amp and the ABG were aimed at the SPL tool which was elevated on a stool that's 1 m in height. My house is quiet (nothing running) and well insulated, I'm the only one home right now, and there's no traffic on my little dead end street.
I played the same run on both instruments: a slapped run on the E string with a strummed chordal part that lasts about 20 seconds.
For reference: Normal conversation is 60dB, alarm clocks are around 80dB, and typically acoustic guitars fall in the 60-80dB range.
Distance
|
Electric + Amp SPL (avg Max dB)
|
ABG SPL (avg Max dB)
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30 cm
|
85.5
|
83.1
|
300 cm
|
85.4
|
81.7
|
635 cm
|
76.8
|
78.5
|
If we can draw any conclusions from this, the ABG played as I do sits around the acoustic guitar level. This certainly makes sense with my experience. I also found it interesting that it registered as louder around the 6 m point, but only by a few dB which is negligible.
Is this scientific? Not really. The SPL tool I use isn't a precises calibrated instrument, I only did 3 trials and my environment isn't what anybody would classify as a controlled environment. I also have no way of proving that I played with the same intensity on each instrument (I mean, I did, but there is no proof). I also didn't do any analysis of my data beyond a quick a dirty averaging.
In any event, it's absolutely possible that an acoustic bass guitar can keep up with an acoustic guitar. I'm not saying the instrument is perfect, but it's not that bad people. They are odd instruments - terrible for projecting nice bassy lows (because they lack a large enough resonating chamber) but perfectly adequate at projecting the mid range. It's like the viola of the bass guitar world. Weirdly inadequate and yet somehow it still works.
Perhaps some day when I have more free time I can run a more thorough experiment with multiple instruments.
If anybody has any thoughts or questions I'd love to hear them.