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list of frequently asked
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General FAQs | Rumble
Road FAQs | CrankCase FAQs | Raw200
• What types of audio devices can I hook up to the HD Raw200
• Can I use any personal stereo with the HD Raw200?
• Can the HD Raw200 amplifier be used with a conventional
AM/FM car stereo or amplifier?
• Can I get even more power out of my car stereo's outputs
by adding an HD Raw200 amplifier to my existing system?
• Will Rumble Road HD Raw200 amplifiers work only with Rumble
• What kind of sound output can I get from the Rumble Road
• How big is the HD Raw200 amplifier? How much does it weigh?
• Where can I install the HD Raw200 amplifier?
• Can I connect the HD Raw200 amplifier directly to the battery?
• Can I use a power adapter to run my personal stereo off my bike's power system instead of using the batteries?
• Will HD Raw200 work with two sets of speakers?
• Is the HD Raw200 amplifier waterproof?
• Are HD Raw200 amplifiers prepackaged with mounting hardware,
or do I have to order hardware separately?
types of audio devices can I hook up to the HD Raw200 amplifier?
Rumble Road™ HD Raw200 works with virtually any portable stereo radio,
or MP3, CD or cassette player featuring a standard 3.5mm mini-plug headphone
jack, high-level speaker input adapters or standard RCA plugs. With the exception
of non-standard and/or inexpensive FM radios with floating ground outputs, most
brands work. The HD Raw200 also performs well with satellite and marine radios,
as well as with traditional car stereo setups that have line outputs. For the
relatively few devices manufactured with the newer 2.5mm stereo jacks, adapters
are available from electronics stores.
Can I use any personal stereo with the HD Raw200?
You can use Rumble Road™ HD Raw200 with virtually any
personal radio, or CD, cassette or MP3 player equipped with
a standard 3.5mm mini-plug headphone jack. As noted above,
for the relatively few devices manufactured with the newer
2.5mm stereo jacks, adapters are available from electronics
stores. Products with "floating ground" amplifiers,
such as very low-end FM radios, may not work optimally with
MHI audio components.
the HD Raw200 amplifier be used with a conventional AM/FM car stereo or amplifier?
Yes, Rumble Road™ HD Raw200 works with most car stereos or amplifiers equipped
with line-level outputs or high-level outputs. The HD Raw200 features built-in
universal line-level inputs and universal high-level inputs, and includes standard
RCA plugs for easy interfacing with conventional AM/FM car stereos.
I get even more power out of my car stereo’s outputs by adding an HD Raw200
amplifier to my existing system?
Yes, typically. The HD Raw200’s inputs are floating and can be used with
ground-referenced or bridged car stereo outputs.
Will Rumble Road™ HD Raw200 amplifiers work
only with Rumble Road speakers?
No, the HD Raw200 works with most any non-amplified speaker
assembly – not just product manufactured by MHI. If you
prefer to work within the MHI system, however, you will want
to go with the full kit that includes speakers and acoustic
baffles, or MHI’s Rumble Road™ Limited (non-amplified)
speakers. Both 4-Ohm and 8-Ohm speakers can be used; however,
if 8-Ohm speakers are used, expected power output from the
HD Raw200 will be reduced by half.
What kind of sound output can I get from the Rumble
Road HD Raw200?
Our high-gain, stereo-bridged HD Raw200 amplifiers produce approximately 70 Watts
continuous per channel, 100 Watts peak per channel, into 4 Ohms @ 13.6 VDC, with
impedences ranging from 4 to 8 ohms. Bottom line: The amp produces 200 Watts
peak per system.
big is the HD Raw200 amplifier? How much does it weigh?
The small-footprint billeted and chromed aluminum case and matching integrated
mounting bracket together measure approximately 5.3” long by 3.9” wide
and 1.6” deep plus cabling. The HD Raw200 amp weighs 1 lb. 15 ounces, including
assembled (built-in) cabling.
Where can I install the HD Raw200 amplifier?
Measuring approximately 5.3” long by 3.9” wide and 1.6” deep,
Rumble Road™ HD Raw200 is compact enough to fit just about anywhere – out
in the open, or under wraps. It was specifically designed to stow away conveniently
in fairing-based tourers, cruisers, baggers and other bikes where big sound and
minimal space are “must haves.” However, its gleaming chrome, minimalist
design and water-resistance assured by a custom-fit lid screwed at 14 points
make the HD Raw200 suited for showcase locations, too. Any location you choose
should allow good airflow over and around the HD Raw200 housing in order to prevent
overheating the amp.
I connect the HD Raw200 amplifier directly to the battery?
Rumble Road™ HD Raw200 is ready to wire either directly to a 12-volt battery
positive lead or to another positive 12-volt source on your bike, such as an
existing accessory line or headlight power line. The color-coded audio cabling
and power wiring includes 2 RCA patch cables and one Y-adapter to connect the
RCA inputs to a standard 3.5mm stereo plug. If you need assistance, your local
automotive sound shop or motorcycle dealer should be able to help you find a
suitable power source, as well as properly install the system.
The HD Raw200 includes a built-in on/off relay with control wire allowing the
unit to be turned on and off through a small switch or positive 12 VDC signal,
such as that which comes from some car stereos with power antenna interfaces.
Can I use a power adapter to run my personal stereo
off my bike’s power system instead of using the batteries?
Yes; however, please be aware that some personal stereos used
in this configuration may produce ground noise, which is characterized
as a high-pitched whine and occurs whether the engine is on
or off. Systems amplified by the HD Raw200 avoid the noise
issue because the amp has a built-in ground loop and power
filter. This remedy eliminates any ground loops — and
most of the resulting noise — between the two systems
-- especially in satellite radio systems.
Will HD Raw200 work with two sets of speakers?
Each Rumble Road™ HD Raw200 has dual- (or stereo-) bridged
amplifiers, so you will need one HD Raw200 for each pair of
non-amplified speakers installed on your bike. Some of our
customers have cleverly installed "quad" mounts — one
pair of Rumble Road™ speakers on the handlebars and an
opposing pair astride the passenger seat. If you still can’t
quite picture it, this approach is beautifully illustrated
by one of our customer testimonial montages.
Is the HD Raw200 amplifier waterproof?
Rumble Road™ HD Raw200 is water-resistant, meaning that
it can tolerate splashed water and rain, but it is not literally
waterproof and cannot tolerate submersion.
Are HD Raw200 amplifiers prepackaged with mounting
hardware, or do I have to order hardware separately?
For your convenience, each Rumble Road™ HD Raw200 arrives
assembled with an integrated mounting bracket featuring four
long screw slots, ready to mount with your preferred screws
depending on the mounting location you select.