Albatross
This question pertains to the Bose 601 series II and III speaker systems of the early to mid 80s. I own the series IIs and have never heard the IIIs. I read that they sound awesome. They sell on ebay for about 40% more than the IIs. If they sound better than the IIs I'd like to own them. Having not been able to actually hear them for myself I've done what research I can in comparing the two. Bose featured 'bass enclosures', creating a bass reflex speaker, in the series IIs, which lets more bass escape the cabinet than what's directly projected foreward by the drivers. These enclosures were not featured in the IIIs. Other than that and a more 'countersink', if you will, or sleeker appearance of the angled top deck, they're pretty close to identical. Their power ratings are equal as well. I once read a comment on an audiophile sight which stated that the series IIs bass response is freer and deeper than that of the IIIs. If by chance you've heard both these systems I would appreciate any comments or opinions you may have.
Answer
An interesting point about bass reflex speakers is that they are like a lung with extra capacity inhaling and exhaling air pushing out large amounts of sound. At certain frequencies these reflex speakers can have a vibration sound because the bass movement is passive in nature. What happens is the sine waves cross up causing a buzzing sound in the music. Its not often, but it is an unintended consequence. Any speaker's sound is based on the amplified power running through it. To get the most out of a speaker the amp should be at 90% or better of the speaker's rated capacity. No matter how low the volume, enough power is stimulating the whole speaker to squeeze out every ounce of sound. I have not heard the Bose 601 series II or III but I am sure they sound great with the right hook up.
I would stay with the IIs because you may not like the IIIs. You would be surprised many times the next series up is not necessarily better to the ear, though other aspects of the sound of music may be better featured. It will not hurt anything if you decide otherwise, after all half the battle is won when you know the sound that meets your musical tastes. Like you I appreciate Bose. However, I am not in love with all that Bose makes, it sure is nice when you hit that sweet spot isn't it.
Keep digging, many pleasant days of enjoying your music.
Best.
An interesting point about bass reflex speakers is that they are like a lung with extra capacity inhaling and exhaling air pushing out large amounts of sound. At certain frequencies these reflex speakers can have a vibration sound because the bass movement is passive in nature. What happens is the sine waves cross up causing a buzzing sound in the music. Its not often, but it is an unintended consequence. Any speaker's sound is based on the amplified power running through it. To get the most out of a speaker the amp should be at 90% or better of the speaker's rated capacity. No matter how low the volume, enough power is stimulating the whole speaker to squeeze out every ounce of sound. I have not heard the Bose 601 series II or III but I am sure they sound great with the right hook up.
I would stay with the IIs because you may not like the IIIs. You would be surprised many times the next series up is not necessarily better to the ear, though other aspects of the sound of music may be better featured. It will not hurt anything if you decide otherwise, after all half the battle is won when you know the sound that meets your musical tastes. Like you I appreciate Bose. However, I am not in love with all that Bose makes, it sure is nice when you hit that sweet spot isn't it.
Keep digging, many pleasant days of enjoying your music.
Best.
i have a car vibration issue?
Justin
i have a 1977 cadillac coupe deville. i recently installed a stereo system into it. i found that my back dash rattles. im wandering if there is a way i can tighten it down, maybe there are screws?. i have a chilton manual but it isn't very detailed. what a waste of 27 bucks. if anyone can let me know a solution i would appreciate it. thank you
Answer
The vibration is not caused because of your rear speakers not being tightened, it's because the power generated by the stereo system. Nowadays, the car stereo system generates 100W or more power, easy. Whereas a 35-year old car was not designed for that. 35 years ago, the stereo systems were pretty much like 15-20 W. The rear dash board is too flimsy for this kind of power.
Here is one thing you can do. It is to strengthen the dash board. Use a piece of wood to make another dash board and put a piece of foam material (carpet underpad should be good) between it. Otherword, the order goes like this, top to bottom, existing dah board, foam material, your customerized dash board. This would damp the vibration.
The vibration is not caused because of your rear speakers not being tightened, it's because the power generated by the stereo system. Nowadays, the car stereo system generates 100W or more power, easy. Whereas a 35-year old car was not designed for that. 35 years ago, the stereo systems were pretty much like 15-20 W. The rear dash board is too flimsy for this kind of power.
Here is one thing you can do. It is to strengthen the dash board. Use a piece of wood to make another dash board and put a piece of foam material (carpet underpad should be good) between it. Otherword, the order goes like this, top to bottom, existing dah board, foam material, your customerized dash board. This would damp the vibration.
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Title Post: Which of these 2 vintage speaker systems sounds better?
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Author: Yukie
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Rating: 98% based on 989 ratings. 5 user reviews.
Author: Yukie
Thanks For Coming To My Blog
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