Hi! I’m Darren Rose from Genelec and today at the factory we’ll
go a bit behind the scenes and talk to some of the people
involved in the projects for developing the ‘Loud and Clear’
Genelec S360 and 7382. This is the S360, and this is the 7382. Aki, when looking at this speaker I can see it’s not like the cast aluminium
speakers that we’ve been doing. Where does it fit into the Genelec range? Well the main motivation for this design has
been to create a new loudspeaker solution for those applications where you need
high SPL in professional studios. Typically those are TV or cinema
monitoring applications. And now when you consider that today people are
increasingly moving to immersive audio, that means that either the speakers have to be
much smaller in order to fit close to you, or you need to extend the distance a little bit
to fit more loudspeakers in your vicinity. This is a solution for those kind of applications
where this has the ability to really send the audio to you over
a long distance with high quality, but this can also be used
in smaller environments. As you know, we have a full range of
monitors in the SAM Series, from the very small 8320
up to something like this and we cover all the typical
monitoring ranges. So Jussi, how do you go about
making a loudspeaker that stays a reasonable size, but plays
so much louder, while maintaining clarity? It is a difficult task. As a professional audio company, we’ve been
always very conscious and cautious about producing enough SPL. Right. Because it’s important for professional people,
while working in studios and such. In this case the challenge was even bigger. So we wanted to have the SPL
that we haven’t really reached in this kind of a package,
and longer distances. So this would allow us to bring this product
to another market, which is new to us. So we had to do a lot of technical decisions, a bit differently than we have done before. Right. So the appearance of this
product is dominated by these quite significant roundings on
the edge of the cabinet. What’s the purpose of this? There are different purposes
for the different features. The edge roundings are there
to minimise diffraction. So all the sharp edges are
really harmful to the sound. So you get reflections from those edges. And based on the computer modelling, we’re able
to minimise these reflections pretty well by just optimising the cabinet radius. The waveguide design, it’s
a deep waveguide as you can see and as large as it can
be in that cabinet. -It’s beautifully smooth.
-Yes. Well it must be pretty smooth and it must also
end to the cabinet front very smoothly in order to avoid the diffraction again. And of course it needs to be deep, so that we
have enough directivity in those longer distances where we want to reach the maximum
SPL levels that we aim for. Okay. Where have we hidden the ports? The ports are actually opening
to the bottom of the cabinet. You can see this Iso-Plate,
which is integrated to the cabinet, that lifts the speaker above the surface, so
the ports can breathe freely through those openings. There’s plenty of space there on the bottom. Yes and the bottom is really nice
because it’s not crowded, so it’s a good place to put the ports and we can optimise the open area to be as big as possible for the low frequency output,
which needs to be a lot in this kind of product. We want to reach higher SPL levels than we
have done in this kind of package before. While we’re here looking at the speaker,
would you like to tell us what this is here? Oh yeah, we have different mounting
points in the cabinet, so that you’re able to use all
the accessories that we can offer. So you can mount this speaker in different
orientations, depending on your application. Right, and that’s going to be quite important given
some of the immersive and large spaces We’re going to be putting these into. So there’s many different accessories that basically allow you to position the speaker as you wish. Excellent. Let’s talk a bit about the electronic and
software design of the S360 and the 7382. The S360 electronics package
offers the same feature set as our other two-way
SAM loudspeakers and it’s based on the same true
and tested building blocks. So we have a mains input. This connects to
a switched mode power supply. The power supply powers Genelec-designed, semi-discrete Class D amplifiers. One for the tweeter, one for the woofer. Input is through analogue input, or AES/EBU signal and of course there’s an AES/EBU ‘thru’ connector as well. We have two Genelec network connectors here
for connecting to the GLM network. The loudspeaker can be used in standalone mode, using the DIP switches here. We have some sensitivity adjustment
as well, with the potentiometer and the familiar on/off push button. Together this constitutes
a very compact package that offers high audio output power
with low noise and distortion, and all of the features of AutoCal and GLM for adapting these loudspeakers
to their acoustic environment. Like all Genelec products, the S360 and
the 7382 are assembled and tested at multiple points in the
factory in Iisalmi, Finland. Here, Sami is taking an S360 for its final
measurement and acoustic calibration. Like all SAM products,
the S360 will calibrate itself. We’ll then make final measurements which are
stored in our database for future reference. All products are also tested for
electrical safety before being packed. What’s the maximum listening distance you’d
recommend for a product like this? Well the maximum listening distance
is really only dictated by the dynamic range that you
want to be able to deliver. So let’s take an example, many cinematic applications require
you to work up to 105 dB maximum. And depending on the room reverberation time,
this speaker would be able to be placed more than ten metres away
from the listening location. What about the subwoofer then,
the 7382, that’s tied to this? Yes. It is tied to this and it is part of the package,
because of the SPL requirement we had. So we needed to have an accompanying
subwoofer to go with this package. When we talk about the immersive system,
you have multiple speakers, instead of just two in front or basically five… So you need a lot of sound. Lots of sound and in the low end it’s
produced by that single subwoofer. So that is a new design, which can
meet the criteria of high SPL and we noticed that the clarity of the low
frequencies is really outstanding. Yeah. Is it Genelec’s
loudest ever subwoofer? Yes, it is and it is done with
three 15 inch woofers and that woofer is a pretty bad guy so it has a really heavy motor and
it produces clean low frequencies, a lot more than we have had before. So it’s been long work with the supplier
but it’s really been fruitful as well. So we’ve been able to bring down the distortion
levels a lot on low frequencies. And we’ve chosen not to put it in a spiral cabinet this time, but to put it in a squarer box, which presumably is easier to put into a room. It is easier to put in the room and in this sized package, the spiral is actually quite impossible to make, so instead of spiral we have made a more conventional port design with large roundings and flarings in the port. So we’re able to get the distortion-free
low end through the port as well. Powering something as powerful as the 7382
subwoofer did require a bit of thought. It is after all the most powerful subwoofer
that Genelec has ever produced To do this we’ve created a new rack-
mountable amplifier, the RAM-SW. This shares design cues with the RAM-XL
and RAM-L remote amplifier modules that Genelec has with other products. So they look good together in a rack. Inside this remote amplifier, we have
switched mode power supplies, 2.5 kilowatts of amplifier
power for this subwoofer and the DSP control filters to enable us
to connect it to the Genelec network for complete use
with GLM and AutoCal. This amplifier module includes an LFE input,
digital ‘in’ and ‘thru’ connectors and two analogue inputs and
two analogue outputs, with connections for the Genelec
network and remote LEDs. It’s powerful, quiet and low distortion‚
completely controllable by GLM. Okay, so let’s say I’ve mounted my 20 something loudspeakers on the brackets, on the ceilings and on the walls. The amplifiers are up there too. What if I want to make an adjustment?
Do we have a solution for that? First of all, you can easily reach all the speakers through the Genelec Loudspeaker Manager software. So once you have the control network connected,
you can reach all the speakers, all the subwoofers, flexibly all the time. Now, you may want to move the amplifiers to an instrument rack, because maybe you need to keep
those in a separate space, maybe you need them to be
cooled particularly well. And with this loudspeaker design,
that’s very easy to do, because you simply take the amplifier off,
drop it into the rack mount kit box and then it slots into a 2U
high space in your rack. Right, and of course that’s where the subwoofer amplifier is already. Yeah that’s a 3U high device and
it can be in the same rack. This is a natural cooling design, so this means that we want to leave some space at the top and bottom, under and over the amplifier,
so the natural cooling can take place. We recommend that this taking of the amplifier and placing
it into the rack mount enclosure is done by somebody who is professionally working
with electrical things, so that they know that they are able
to do it in a successful way. Genelec is focusing quite carefully
now on the immersive market. These systems have been available in research
facilities for quite some time now. Now we’re seeing a shift to
larger systems, different systems. Why is Genelec specifically promoting use
in immersive systems now? Well there are a couple of reasons for this. First of all, we can see that immersive presentations of audio have really become very popular these days. We have things like Dolby Atmos, Auro-3D, NHK 22.2, formats like this that are using more
than one layer of audio reproduction, two or three layers of reproduction channels
to create an immersive experience. And these are now increasingly
becoming a request in the industry. There are some companies who are streaming audio to homes who basically require that if you’re creating software, creating programs for them, audio has to be immersive. And this means that there’s a great demand, a great need in the industry at the moment
to gear up for this new need. And we talk about object-oriented mixing now, where for any object the sound field is presented by a single source, not necessarily a phantom
image – so what’s the effect of that? We’re coming from a world where the audio was channel-based. Starting from mono, stereo, 5.1 and onwards. What was recorded was the individual channels that directly feed to the loudspeakers. Now this is changing, it has already changed,
and now we’re talking about object-oriented audio, where actually what you record are
the different sources of audio that you should be able to present
over your loudspeaker system. In order to have the feeds
for your loudspeakers, you have to actually create them in
real time whilst you’re playing, and this means that you have
to have a rendering engine. So you feed your object-oriented audio into the rendering engine and that figures out the necessary
feeds for the loudspeakers. This means, and this is actually very
important with the new format, that you get additional flexibility, because now your loudspeaker layouts can be adapted. It can be adapted to the need for
the particular playback system. It can be adapted in many ways and
your rendering engine can step up and figure out how to best present the objects
over the given playback system. And does this leave us with a situation where potentially any of those loudspeakers might need to produce
a large SPL by itself? The loudspeaker maximum SPL
is mainly determined by its distance to
the listening location, now if you think of a typical room,
they are pretty rectangular, so some of the loudspeakers end up
further away from the listener than others. Your ceiling height may determine how high
you can place the height layer and so on. There are different variants that dictate that some loudspeakers can be close
to you whilst other ones cannot, and then you have to select a loudspeaker
that is able to deal with its distance in order to deliver the sufficient level
of audio at the listening location. Yeah, absolutely. You can’t really build a perfect
sphere in a rectangular listening room, if you want to put people in there too? Well you could and people are doing this,
but most of the time it’s not very convenient. Alright, hopefully you’ve enjoyed
seeing some of the story behind the S360 and the 7382.
See you in another video.

Designing the new Genelec S360 and 7382 high-SPL studio monitors
Tagged on:                                                                                                                                                                                                             

3 thoughts on “Designing the new Genelec S360 and 7382 high-SPL studio monitors

  • January 14, 2019 at 4:34 pm

    6:18 Gordon Freeman carts the anomalous material sample into the anti-mass spectrometer.

  • January 14, 2019 at 11:36 pm

    GenelecSAM's + Trinnov Altitude 32 = Dreams come true xD

  • February 2, 2019 at 1:21 pm

    They are a very good looking speaker


Leave a Reply

Your email address will not be published. Required fields are marked *