Hey, I'm JR, training manager here at Crutchfield, and this is the JBL DSP4086. It is an eight-
channel car amplifier with digital signal processing built in. Let's talk about the
power first. There are eight channels of power at 40 watts per channel; that's when you're running
4-ohm speakers, and most car speakers are 4 ohms of impedance. If you pair this up with a
JBL speaker, JBLs are typically lower than 4 ohms, you'll get a little bit more power
out of it. In fact, this amp runs at 60 watts of power per channel when you're running at 2
ohms, and you can use those 8 channels however you want. You can configure them all sorts of
different ways. You could keep it simple and just have front channels and rear channels,
or you could configure it so that you have separate channels for your high-frequency tweeters,
your mid-range speakers, your woofers, your subs, or maybe a center channel in the center of your dash.
A lot of flexibility with how you can use all eight channels of power to set the amp up the
way you want it for your system. To configure the DSP, you're going to want to use a Windows PC and
connect it to this amp with a usb cable. Once you have that connected and the software installed, you
will have a ton of control. You'll have a 31-band equalizer so you can fine-tune each channel for
each speaker, you can use the built-in crossovers... there's high-pass crossovers for your tweeters,
low-pass crossovers for your low-frequency drivers, bandpass crossovers for those mid-range speakers,
and you can use any of those crossovers on any channel. You can also use an adjustable delay, so
if speakers are different distances from you in your car you can adjust for that. You can adjust
the phase of each speaker, the speaker location, you can tell it where your speakers are in your
car so they can adjust for speakers maybe that are mounted low versus mounted high in your car. You
can link multiple channels together so that you don't have to set up each channel separately, you
can set up one channel and use those same settings for other channels, and it's got an input mixer,
which is really handy when you're using this with a factory radio, especially one that has crossed-
over speaker output. So a factory system that has separate speaker wires going to the tweeter and
the mid-range that only carry high or mid or low frequencies, so you can take those separate
channels of sound from your factory system's speaker wires, sum them together and use
those as full-range to power any of your speakers in your system. The software that controls the DSP
in this amplifier is really, really precise. You can fine-tune just about any aspect of your sound. It
can be a little bit intimidating. If you're worried about it, or if you've got this amp and you're not
sure what to do with that software, let us help you. You get free tech support with everything you buy
from us, and that includes letting us help you get this amp fine-tuned for your car. Let's talk
about installing the DSP4086. It is an amplifier, which means you're going to need to connect it
to your battery and to the ground of your car. You will want to buy an 8-gauge amplifier wiring kit
to take care of that wiring; it comes with about an eight-inch long harness with power and ground
wires on it. You can see the RCA cables here, that's how you're going to get music into the amplifier.
If you're connecting it to an aftermarket radio you'll simply need stereo RCA patch cables to go
from the preamp outputs of your radio to these inputs on the amplifier. If you're connecting it
to a factory radio, you're going to be tapping into or cutting your factory speaker wire, you'll then
connect the factory speaker wire to these speaker wire to RCA adapters that JBL includes for each
channel of the amplifier. Positive and negative speaker wire goes into one end, an RCA connection
on the other end plugs into these RCA connections right there on the amplifier. That's how you'll get
music from your factory radio into the amplifier. You can also install this cable with this sub
knob so that you can have control of the bass from the front of the car. Speaking of bass, the power
in this amplifier is enough power for a modest subwoofer or two, maybe like a small eight-inch sub
that's very efficient. JBL subwoofers would be a good match here, but you're not going to be able to
power a large, massive subwoofer that's designed to give you incredible thunderous bass. That just does
not have the power for that. You're going to want a separate amplifier if that's the type of bass
you're looking for. If you are, a good match to this amplifier would be a JBL A3001 with a lot more
power for a much bigger subwoofer. So this is the JBL DSP4086. It's an eight-channel amplifier you
can use in a multitude of situations to make your car sound amazing. If you have any questions about
making sure this is the right amplifier for your car, let us help you. Go to crutchfield.com/contact,
there you can see how you can call or chat with one of our advisors. They can help you make sure
this is the right amp for you. You can also post your questions right here on YouTube down in the
comments, we do look at those comments and we will respond to you accordingly. Also, while
you're here on YouTube, go ahead and hit that like button, subscribe to our channel, and turn
notifications on so you'll know the next time we put out another video. Thanks for watching.