These speakers exhibit an audible compression when played above about 90dB at a couple meters away. Therefore, they are best used in the near/midfield and not ideal for a large home theater setting, even if you plan to use a subwoofer. Inch Silk Dome Tweeter with Waveguide: The outcome of countless hours of design refinement, the BS5’s tweeter produces a smooth, extended, and predictable treble response with the help of its integrated waveguide. The result is music full of accurate detail and precise imaging.

NEUMI BS5 Bookshelf Speakers | NEUMITECH

It also boasts of a wide dispersion waveguide that enhances direct control. This waveguide is also responsible for eliminating diffraction, allowing users to enjoy across-the-board coherency, deeper lows, and smooth sounds. You can use this speaker as the main speaker in a compact or limited space, and they guarantee to produce sounds that will fill up all compact spaces.

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I ran the on-axis response through REW’s automatic EQ generation with a flatness target of ±2dB and came up with the following: Below is a breakout of the typical room’s Early Reflections contributors (floor bounce, ceiling, rear wall, front wall and side wall reflections). From this you can determine how much absorption you need and where to place it to help remedy strong dips from the reflection(s). Notice the strong dips again at 800Hz and 1600Hz. The reference plane in this test is just below the tweeter, per the manufacturer. A single RCA input was used and the volume was set to default. No grille was used. When shopping for a bookshelf speaker, bear in mind that they do not have the power to produce rumbling bass sounds, but they will produce bass sounds that will fill up your office, your room, your library, and any other small or medium-sized room. Again, any bit is really appreciated. I would love to be able to fund a remote controlled turntable for my measuring. As it is, I walk about 2 miles (literally) between my computer and the DUT to spin it about 150 or so times (ground plane measurement + free-field measurement) at a distance of 40+ feet one-way which adds up.

Neumi BS5 User Manual - NEUMITECH

The blue shaded area represents the ±3dB response window from my calculated mean SPL value. As you can see in the blue window above, the Neumi BS5 has a ±3dB response from 64Hz - 20kHz but only if you ignore the dip in response around 800Hz. Neumi claims a ±3dB window of 50Hz - 20kHz (typical in-room). I don’t believe their spec is a reach but obviously the notch at ~800Hz throws things off. Unfortunately, this notch is pervasive and is brought on by the port, as far as I can tell (more discussion in the Near-Field measurements portion further down). A tighter window of linearity is provided in gray as ±1.5dB from the mean SPL and this speaker does a decent job of trying to stay within that range but the port noise at 800Hz and ~1600Hz make things fall out of that window fast. The treble above 8kHz also begins dipping/peaking enough to keep it out of the tighter window.

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Here's a thought, if you forum software allows you to conduct polls (as AH does), you could have a poll at the top of the review and let readers rate it. This makes it obvious that the rating is not based on any rigorous analysis. I think it would probably result in a decent system as long as you don't have fan-boys blindly up-rating everything by a specific maker or down-rating everything by a different maker! Like I say, "a thought" I'd have to let it percolate for a few days and even then like to do it on a trial basis to see how it would play out! So, if any of you are on Facebook and interested in entering the giveaway, join my group at this link: Also, per Neumi’s direction, the grille was off for these measurements. I do have comparison data of the grille on vs off in my Miscellaneous section below. Precise imaging and accurate detailing are all features of this bookshelf speaker, while its enclosure comes with vertical corners for baffling diffraction. It also has a magnetic grill for eliminating mounting holes. Specifications The passive and active speakers are the two main styles of a bookshelf speaker, and active speakers are considered the all-in-one type of speaker. So it is because they come with inputs, volume controls, and a preamp.