Bose 901 series 4 manual

Is your question not listed? The Bose. Speaker System. Ask a question. About the Bose Series VI. Bose Series VI specifications. Related product manuals. When is my volume too loud? A volume above 80 decibels can be harmful to hearing.

Profits from Bose smart manufacturing, not corner cutting, has funded research that shaped much of today's the audio landscape. All of that said, in general, Bose products do sound like shit. One full range driver in the front, 8 on the back, 4 port tubes, and an active EQ box to make it sound reasonable. This is the speaker that back in proved commercial viability of omnidirectional, dipole, and all sorts of bizarre dispersion patterns.

Even today you can see some of these same ideas being used in new products such as Audio Kinesis "Late Ceiling Splash" technology , where very directional speakers are coupled with delayed reflections that add emersion to the listening experience. The pair of speaker I have for review are the most recent iteration of the design, the Series VI. This pair was made back in when Bose speakers were still made in America. The design has not changed since then, and honestly it's almost longer in the tooth than Klipsch Heritage speakers.

Blue cones with that famous for failing foam surround. The drivers also have the ugly looking tinsel leads on the front, but on the plus side the plastic baskets are branded three times along with the dust cap. These drivers are 1 ohm each, and are ganged up in such a way internally to produce an 8ohm load. The front grills are tweed and attached with a handful of tiny staples that are only possible to find with a magnet, so they stayed on for this review.

The rear grills are a molded metal mesh and the clip to cover the back drivers. The rear grill also works to cut the treble response from the rear drivers. If you try running these speakers without the rear grills expect shrillness on a scale that should not exist in the natural world. A two piece port, one side exits on the front of the speaker hidden behind the tweed grill, the other blasts air out of the rear of the speaker. The port tube design is something I've never seen duplicated, it makes for a very deep tuning without much physical volume.

The downside is that these ports can put a candle out from 6 feet away and are audible at full chuff. The cabinet is made of what looks like veneered MDF for the top and bottom, the rear of the speaker is a thick injection molded plastic. It's a pretty stout box if you account for all of the holes in it.

Awkward is an understatement, these terminals are in the middle of the bottom of the speaker. The idea is that you hook up your wire and thread it through the speaker stands.

Then, unless you want to put wood screws into your speakers to attach the stands, you are in for a chore. The dance of flipping the speaker while trying to hold the stand onto the bottom is a contortion that only the owners can understand.

Here are the stands mentioned above. This iconic design is really beautiful, if not the most functional. The wire is supposed to run through the top and out of the bottom, but there is no notch for it to slide under on the bottom. Instead the wire just kind of get smashed and the stand becomes slightly unbalanced. No crossover in this speaker, instead we have a required active EQ that shapes the sound before it goes to the amplifier.

This shows the default EQ used to correct the speakers. The blue line is for the default Bass EQ, the red line is for the secondary bass setting. Yes, that is a shit ton of treble boost, as well as a healthy chunk of bass boost. Here you can see the extremes of the EQ adjustment available. Choose up to 15dB variation in the treble tone, and 10dB to the mid-bass. My lovely wife puts up with so much. I took over the living room and pushed my main speakers into the corner.

This gave me room to set the 's up with in the " distance from the back wall as the owner's manual recommends. I ended up at 16 inches from the rear wall and pushed them a bit wider than my main speakers to give them as much room as possible to operate. Now in a perfect world these would have an uninterrupted wall behind them and closer to corners, but I don't have that option so the right channel is stuck on the hallway side.

One thing to note is that the setup recommendations have changed over the years. Originally the 's were to be setup mostly at ear level when seated. The setup for the past 30 years has been tied to these short stands, or hung from the ceiling far off axis.

There is even a recommendation for matching pairs of floor and ceiling 's in some manuals, something I'm sure a few die hards have tried. As for electronics I left all my gear for my main system untouched and opted to use a Macbook as the source and my trusty iNuke NU amp to supply whatever power was needed. I've heard these speakers many times of the past 20 years, in lots of different setups and they are still kind of hard to describe because they are so different from anything else out there.

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