BIC DV62si Bookshelf Speakers Demo

hey everybody this week we’re going to
be looking at speaker upgrades and what
we look for in a speaker when it shows
up and look at the different levels of
upgrades that we can do before I get
started though I want to give a shout
out to all the students at the acoustic
engineering societies chapter at Purdue
University I think this is the third or
fourth year that these guys have ordered
our av1 kits and allowed the students to
build a V once as a project learning how
to build speakers and put them together
and this year they were posting pictures
on Facebook and it was great to go
through all those pictures and see the
young students out there building
speakers and learning about this stuff
that that’s just it’s fantastic I love
seeing every picture and to all you
students out there I hope you enjoy
those AV ones and to all the high
schools and stuff out there that are
interested in doing something like this
that want to do a speaker building
project I’ll be glad to work with you
guys on any of that stuff
just contact me here at GR research if
you have any interest in doing any of
those projects now let’s get down to
some business here these these are
speakers that have showed up for
measuring and testing and hopefully for
doing some upgrades this one’s been in
here for a little while I finally got to
the clip speaker let’s start with the
little big speaker on the end over there
that one is a Bic model it is the DV 62s
I let a customer sent in and I’m gonna
slide over get to the guest to the left
of the screen a little bit and give them
a room to post some measurements as I
talk about these and then you guys can
kind of follow along with me and see
what I’m talking about and go through
the measurements on each of these
speakers the little bit speaker if you
look at the frequency response on this
thing you’ll see it’s got a couple of
big peaks at the top of its frequency
range right up around 15k Hertz
somewhere around 6 or 7 K hurts those is
a pretty big piece
those are 7 8 DB Peaks almost some of it
may have to do with a little diffraction
issue they did not flush mount the
drivers in this model they’re just
surface mounting so that’s going to
cause some ripples in the response
around the tweeter probably not all of
it is diffraction though the tweeters
got some peaks in it the grille I had
very little effect on it there was a
little bit of an up and down around 28
730 400 Hertz there that the grille
caused a little bit of problem but
nothing compared to the frequency
response and the real issue that I had
with these speakers is the crossover
point looked pretty high on these I
could see from the measurements that
there was a pretty big suck out in the
off-axis response when you when you when
you measure the speaker and you start
measuring off axis that means you’re
turning it 10 degrees at a time the
woofers output is gonna fall off in the
off axis and what you want is you want
the tweeter to play down low enough that
when the effect says the woofer falls
off the tweeters there to play that
range and pick it up so it maintains a
smooth curve even in the off axis that’s
not what was going on here with the big
speaker as the woofer fell off in the
off-axis the tweeter wasn’t playing low
enough to fill that gap so if you look
at the horizontal off axis you’ll see
that about 20 degrees off-axis it’s
really starting to develop the hole at
30 and 40 degrees off-axis it’s
developed more than a 15 DB hole in the
response just because the crossover
point is so high the vertical off axis
didn’t look too bad that’s of course as
we’re moving the microphone up higher
that shows the time alignment in the
phase issue between the drivers and how
well they stay in phase over a pretty
good range these did stay in phase
pretty well as you started to move up it
started to lose some of that output at
one of the peaks and smooth out just a
little bit in the off axis vertically
and the impedance curve goes an
impedance resonance right near the pork
tuning and about 68 Hertz there’s a
little bit of a resonance going on there
if you look the spectral decay you’ll
see there’s some stored energy at the
bottom of the tweeters range that would
sound a little aggressive a little hot a
little bit of a ringing going on there
so what would we do with these creepers
what do I recommend I mean we could go
in and just replace the tweeter put a
better tweeter in there that’ll play
down lower and cross it down into that
woofer and make something out of these
things however now we’re talking about
changing out the tweeter designing a
whole new crossover basically we’re
designing a whole new speaker we’re just
salvaging the box which isn’t braced
too well to begin with I don’t well in
fact I don’t think there was any brace
in this box and the woofer is just a
pretty inexpensive polycomb woofer as
well so even if we threw a really great
tweeter at it you’re still limited by
the woofer my recommendation on this
before I would start changing drivers
new crossovers and the time and the
money you spend doing a big upgrade like
that at trying to make something out of
them you could have spent that money on
one of our kids for less money and I
have 10 times the speaker so in this
situation I would say before spending a
lot of money upgrading this model I
would say start over there are some
other options out there you could spend
that money on and get you a little
further down the line the next model
here is this little pulk
it’s a model signature s20 and if you
look at the frequency response of the
pulk you’ll see that it measured really
well on the on axis frequency response
really smooth there was a little peek at
the tweeters response very top in around
14k Hertz not much though not anything I
would concern myself over that’s pretty
high in frequency the woofer appears to
be a little poly cone woofer it is a
stamped steel frame there’s going to be
able to
ringing in the frame the customer that
sent me this looks as if they’ve already
puts a little LED strips on the frame
and it did a great job of damping out
the ringing on that frame that’s a good
tweak that almost anybody can do on
these things the grill worked pretty
well it had a few little ripples along
the way there that it it had a little
bit of effect but overall the grills
made pretty nicely
tell them magnetically and it had very
little effect on the response this is a
little plastic cover that goes on it
after you mount the woofer it flush
mounts the tweeter it looks real nice
they did a good job on the aesthetics
the cabinet looks really nice it’s got a
layer of foam that’s been put on the
inside I don’t know if that came that
way I think maybe a customer may have
already done that
but any rate I looked really good the
off axis horizontally look look pretty
smooth vertically and the off axis
looked pretty good as well the as you
started moving higher and higher you
started seeing in the measurements there
you can see a little bit of a dip area
at the crossover point but not real bad
overall they did a pretty good job with
the crossover design and everything that
response is real smooth if you look at
the spectral decay you’ll see a little
stored energy starting around 700 Hertz
or so when the woofers response but it’s
not bad it’s not bad and there’s a
little trace there somewhere near the
crossover points a little bit of a ring
but not much overall pretty good job the
one issue that I had with these was in
the impedance curve if you look at the
impedance curve you’ll see right it down
there just above the tuning frequency
there’s a pretty big little dip in the
response there it’s pretty aggressive
dip it drops to 2.2 ohms right there and
a lot of it is caused by this little
piece that goes on the back I can see
what they’re trying to do here they’re
there they’ve got this pointed
protrusion that faces straight into the
port that tends to want to deflect that
output to the sides so you could put the
speaker up close to a wall and hopefully
it would minimize
the game that you would get from the
port of course the frequency range that
it’s gonna have output on this port is
so low it’s gonna be omnidirectional
soon as it leaves anyway so not really
sure what the point is here and removing
it brought that dip up a little bit the
dip came up and it reached a minimal
there at 3.1 so it came up almost a full
ohm just by taking this off there’s
still some port resonance going on in
here somewhere
that little dipped area is still there I
did try adding some felt on the inside
and trying to see if I could figure out
where it is or what’s going on the best
thing I did was just took a little bit
of polyfill and just slid it in the port
it reduce the port output it knock that
dip right out of it it smooth the
impedance out that worked out really
well so for you guys that have these if
you’re thinking about the port output
and you’ve got plenty of base output
from the port and would like to soften
it it will smooth out a little resonance
it’s in that area it should improve the
sound of it a little bit take away that
that resonance it’s in that area over
although these things measured really
well there’s no need to reinvent the
wheel on these things pop guys the
engineers there did a pretty good job
designing the crossover for this stuff
so what would I recommend on one of
these I would say let’s go in and
upgrade the quality of the parts because
the parts quality is very indicative of
any speaker in this price range it’s
it’s budget level oriented it’s the
whole network is just mounted on the cup
I’ll throw a little picture up you can
see what the network looks like there
like I said just budget level parts so
it’s a room for improvement there yes
there’s a lot of room for improvement
there but obviously at the price points
that they sell these they’re not going
to be able to put a couple hundred
dollars where the high-end parts in them
that would double or triple the price of
the speaker so what I’ll do is I will go
in and draw out a schematic of the
network that is on here and I’ll offer
you guys just an upgrade kit that’s too
all new parts that you could
point-to-point wire it’s going to be the
exact same network that came with the
speaker just higher quality parts should
improve the detail levels the resolution
the vocal region everything across the
board and clarity wise will improve on
throwing a little set of two connectors
to replace the binding post and it’ll be
an inexpensive upgrade that should
improve these quite a bit now next is
the little clip speaker this is the
center channel that clips made it’s very
similar to the little mini monitor that
I did a few weeks back I did the RP 600
M this is the RP 600 C so basically
using the same drivers it’s just
designed for center channel use and if
we look at the frequency response
measurement on this one you’ll see that
the tweeter and the woofer don’t quite
reach each other there’s a little bit of
a hole there where they’re crossing
where they’re not really summing and
they’re crossing well down in the output
range so that they’re leaving about a 3
or 4 DB hole in the response there
another thing I notice is the tweeters
output level is about a DB and a half
hot on the bottom in so it’s a little
bit of a brighter aggressive sound and
speaker but there’s a pretty big hole
there at the crossover point sometimes a
little bit of softening of the crossover
point can not necessarily be a bad thing
but in this case if you look at the
horizontal off axis you see cancellation
starting in that same area what I mean
by that is this is designed to be a
center channel speaker so ideally you
want to be setting in front of it it
needs to have a good coverage area for
the people that are sitting seated that
are watching the movie and when people
start getting in the seats that are more
off axis what happens is there’s a time
delay between the output this one for
the output of this woofer and that time
delay is such that it starts causing a
cancellation effect and on this speaker
even at just 10 degrees off axis you can
see that cancel
starting to occur in that same region
where there was a hole already so
instead of it being about 3 DB holders
about a 6 DB hole or more maybe almost
seventy me if you look at the tweeters
output in that region and if you get 20
or 30 degrees off-axis you museu dip
there 30 or 40 degrees off-axis there’s
a 15 DB dip there and there’s a about a
10 or 15 DB dip and another frequency
range around 6 to 700 Hertz so a lot of
cancellation going on in that range so
well let’s look at the rest of the
measurements real quick the vertical off
axis that’s up and down it looks really
smooth the response doesn’t change the
impedance curve also looks really smooth
I don’t see any problems with impedance
other than there’s an imbalance the
feedings dropped to 3.3 ohms at the
bottom end so keep in mind if you have a
receiver that you’re using with these
things and a lot of those receivers
don’t like low impedance loads make sure
your receiver can handle over a pittance
load it’s also higher on the higher
frequency range so it’s kind of an
impedance mismatch again so a lot of
amplifiers are gonna see that as a
little bit different load spectral decay
looked really clean on these so I see no
issues there in the spectral decay
overall pretty clean here’s the port on
the back there that’s that flared port
worked really well there’s the crossover
again a little bit cheese there you know
pretty much what you’d expect at these
price points just like everything else
low budget crossover parts electrolytic
caps the line core inductor same cast
resistors you know that’s all the cheap
stuff so what would I do on this one
well I wouldn’t want to do on this one
is same thing I did on the other clips
models that were sent in for an upgrade
I want to design a new network for these
things I’m going to extend the drivers
range over into each other so that
there’s something smoothly so even as
you start to get off axis the hole that
wills
to appear because one morphers delayed
in time versus the other won’t be as bad
because there won’t already be a hole
there and if I rang the tweeters
crossover range down just a little bit
it’ll also help fill that so they’ll
have a better horizontal coverage area
we’re gonna do a much higher quality
parts upgrade and try to keep this still
in a nice budget region below in maybe
half a sheet of nowhere is new crossover
parts and maybe some a pair of tube
connectors
that’ll improve clarity and detail
across the board just like we did with
the smaller monitor and that’ll be an
easy upgrade just like those other
models so I’ll put that together I don’t
know the price yet probably looking at
somewhere in the 120 range for an
upgrade for this thing we’ll see so
that’s it for this week that’s kind of
what we look at when we examine a
speaker you know there’s times we may
look at it and say it’s not we’re
spending more money on something start
over
money better well-spent sometimes we
don’t have to do any new engineering
work all we have to do is upgrade the
parts quality and that’s something a lot
of you guys can do as well that’s what
we’d recommend on the Pope with the
clips a little bit of a redesign and an
upgrade and we’ll get these things to
sound and lots better for you guys if
you have a speaker you want to send us
send it on in I’ll do measuring and
testing and give me an evaluation just
like we just did that’s where we start
it doesn’t cost anything for me to do
that for you or I don’t charge or
anything to do that that’s free just
send it in if it’s big I’m gonna charge
you a handling fee we’re having a box in
unbox and ReWalk something to send back
to you but that’s usually pretty small
so remember that’s the only way I can
tell you anything about your speakers I
can’t tell you good or bad what to do
without having it here I can’t evaluate
it without it being in my presence I
can’t measure and test it unless it is
here can’t stress that enough I still
have people saying can you upgrade my
speaker and how much will it cost I
don’t know I don’t know how much it’s
gonna cost until I
it so if you have any questions throw my
way post them in the comment section
thanks for watching guys and we’ll see

BIC DV62si Bookshelf Speakers Specs

DesignTwo-way, “venturi” tuned-vent bookshelf
Frequency Response43Hz – 21kHz (+/- 3dB)
Sensitivity90 db @ 1 watt, 1 meter
Drivers6 1/2″ poly/graphite woofer, custom-designed 3/4″ poly soft dome tweeter
Gold-Plated TerminalsYES
Recommended Power10-175 watts per channel
Impedance8 Ohms
Dimensions14.25″ H x 8 7/8″ W x 9 1/8″ D
Weight31 lbs Per Pair

BIC DV62si Bookshelf Speakers

The BIC DV62si bookshelf loudspeakers are considered to be the best and most versatile system for your home theater or music system. These loudspeakers are truly fantastic for hihigh-qualityound that will enhance your movies and music performances even better than you have imagined. The BIC DV62si bookshelf loudspeakers are made with the highest of standards and they possess all the features that a good set of bookshelf speakers should have. You can choose from many models of the BIC DV62si loudspeakers which will suit your requirements. This is why this brand is one of the most commonly selected among customers who are looking for quality loudspeakers.

The BIC DV62si bandpass bookshelf speaker in five-band. They come with an aluminum frame that is durable and a textured black lacquer finish. These are powered by a pair of true electric drive transistors driven by 9-volt batteries. There is a switch that can be found behind the left speaker that allows you to change the frequency response of this particular model so that you can get the exact frequency response that suits your needs.

The BIC DV62si is one of the bookshelf loudspeakers that have been featured in many product reviews on the Internet. A feature overview of the BIC DV62si bookshelf loudspeakers is as follows: this model has a frequency response that is more than twenty-five percent of the bandwidth of the audio signal; it incorporates a horn that produces low-frequency sound waves; the horn is of the variety. This model has a low distortion figure and its power handling is very satisfactory. There is also an option for increasing the volume level from five to eight pounds. In addition, there is also a remote control feature that makes it easier to operate the bookshelf loudspeakers.

In the review of the BIC DV62si bookshelf loudspeakers, there are a detailed feature analysis as well as comparisons with some of the other similar bookshelf loudspeakers that are available on the market. The main performance factor that is being compared here is the frequency response. The speaker was compared using a phase-division multi-band filter (that is used to equalize the high frequency response of the speaker and the response of the entire system) at maximum output power into a six vsix-voltmp. The output power was measured at one meter and the comparison was done using three channels. The output strength versus the distortion ratio of the speaker were measured at ninety db. This means that the speaker could handle sounds from all the music genres.

The final feature overview includes some general information about the bookshelf loudspeakers. The BIC DV62si bookshelf model has a lightweight design that is easy to assemble. The weight of the speaker is 4.1 lbs., which is on the light side for speakers. The material it is made of is graphite, which is a low-maintenancemaintenance choice. When looked at on a shelf or stand, the BIC DV62si bookshelf can easily go unnoticed.

Overall, these are three speakers that will give you great sound quality in a small, compact enclosure. You should look at the features that they come with and compare them to other brands. They also come with a subwoofer and a poly-dome enclosure, which are an added feature. For the best performance, you should take a look at a speaker that uses a paper cone. Some of these speakers use rubber dome drive for optimum performance.

BIC DV62si Bookshelf Speakers FAQ

BIC bookshelf speakers

BIC bookshelf speakers are a great option for any home theater or audio system. BIC, as it is called, is a joint venture between Companies Buying a Home Theater System and Acoustic Designs, an audio engineer and designer based in London, England. BIC bookshelf speakers, (which also goes by the name of “Birch Technology”) are engineered to provide you with the best in sound quality and value. Acoustic Designs has been around for over forty years; they understand the full spectrum of speaker systems, their installation requirements, and the exact needs of your particular piece of equipment.

BIC bookshelf speakers come in several different models. Some are small and compact, and others are quite large. The sizes available are designed for specific uses, such as bookshelves, office cubicles, and entertainment centers. They come in many finishes and styles, so that you are certain to find a model to match any decor. Many of them also have wireless options, so you do not need wires running down to your TV or speakers.

You will find that BIC bookshelf speakers offer a wide array of features and can add greatly to the quality of your music or movies. You may choose to buy a stand for your bookshelf speakers, to help it fit into a designated area, or to simply free up some room. There are several different types of stands, including those made of steel and wood, which can be found in various colors, styles, and materials. If you prefer not to purchase a stand, some models come with a built-in shelf, but they are not as common or as convenient.

BIC in-wall speakers

BIC in-wall speakers are very popular with home builders and those that like to entertain on a regular basis. These speakers offer high quality sound reproduction for a great price. You will get a sub-woofer in the wall as well as the normal speaker in each of the five main channels for all your music, movies, television, and stereo needs. You do not have to replace the speakers as these can be bought pre-owned and exchanged in the event that you run into problems or the sound no longer suits your needs.

BIC offers many finishes to choose from to fit into your decor. They come in traditional, modern, and casual styles. There are models designed to mount flush against the wall and others that are set up at an angle and resemble a picture on the wall. The speakers themselves are made out of sturdy metal, which makes them easy to install and use.

When you are purchasing BIC speakers you need to know how many speakers are going to be installed so you can make a good choice. Each individual speaker should be checked to ensure that they are mounted and working properly. You can find many speakers in this manufacturer, but some models may be more expensive than others. If you need a large number of speakers, it is a good idea to purchase a system that allows you to add more in the event that you get overwhelmed by the choices. There are many great systems available that allow you to buy multiple pairs in the same style so you can mix and match different styles easily.

Last update on 2021-08-25 / Disclaimer: as an Amazon Associate I earn from qualifying purchases.

3 verified buyer reviews
  1. First and foremost, I am a jerk when it comes to audio. I have a habit of purchasing expensive equipment and then fiddling with it until it sounds fine. (Or what I consider to be perfect; I realize this is subjective). I purchased these for my garage, the one space in my house I don’t care about, because I wasn’t about to spend a grand on speakers that would be ruined by metal and wood shavings. Now that I’ve qualified what I’m about to say, here’s what I’m going to say:

    I’m completely blown away by how amazing a low-cost collection of speakers sounds. I’m just feeding them 100 watts RMS from an old Onkyo receiver, but they’re crisp and clean up to an ear splitting volume. The highs and mids are fantastic. There is some bottoming out on the low end once you get to 80-90htz and below, but that isn’t bad for a 6.5″ mic. It penetrates deeper than I could have expected. To be honest, I had to lower my Polk L100s to see if they were clearer. The Polk’s are superior, but they are nearly ten times the price. They aren’t any clearer. Buy these DV62si’s unless you are extremely picky about your music.

  2. Best value for money. They’re rude, which seems to have gone unnoticed in the ratings. I was shocked at how loud they were considering they were not marketed as loud speakers. I also have the BIC FH65B, which is marketed as being extremely noisy. They also say 95dB sensitivity, which I’ve always found difficult to believe because my old 87dB Advent Legacy III speakers were quieter than the FH65B. In terms of volume, the DV62si blows them both out of the water, which is a good surprise.

    The tweeters were extremely bright, much brighter than the FH65B’s horn tweeters, which was also shocking. I’m hoping that will change after the break-in. At really high levels, it sounds harsh.

    In person, the DV62si appears to be more appealing. In the images, it appears to be only plain black speakers. All appears to be black, with just one hue. However, the cabinet is a cool looking charcoal gray, almost metallic in appearance, which contrasts with the black woofers and tweeters.

  3. Wow, these speakers sound incredible. I’ve read and heard a lot of good things about BIC America speakers, but I’ve never needed to buy any until now. I had some audio equipment in my office that was gathering dust; all I needed was a stereo receiver and speakers to get music playing. I enjoy music and enjoy listening to it clearly. I was on a tight budget and didn’t want to spend too much… Anyway, I did some research, read a lot of feedback, and made my own comparisons of receivers and speakers both online. After doing some testing, I decided to buy a Yamaha receiver (R-S202BL), a Polk Audio PSW10 subwoofer, and BIC America DV62si book shelf speakers (all purchased here). Before I bought these speakers, a musician friend of mine bought some BIC America speakers a year ago and loves them. So I went to his house to listen to them, and they sound fantastic. So I bought the DV62si speakers after being persuaded.

    I connected all of my equipment and ran a few sound tests to get the treble and bass to my taste. Let me tell you, these speakers sound incredible. The highs of the speakers are crisp, clean, and transparent. They have adequate bass, but because I have a sub, I didn’t have to be concerned about them making a ton of bass. Right out of the box, the clarity is superb. The vinyl and CD both sound fantastic.

    Stop making comparisons between speakers…

    Simply purchase these! You will not be let down. You can, I am sure, enjoy them as much as I do.

* only verified buyers can leave a review.