- Amplifier Class: Class D.
- Technology: Digital.
- Number of Output Channels: 1.
- Total Power: 5000 Watts.
- Max Power @ 1 Ohm: 5000 Watts x 1.
- Max Power @ 2 Ohms: 3500 Watts x 1.
- Max Power @ 2 Ohms, when strapped with same model amplifier: 10000 Watts.
- RMS Power @ 4 Ohms: 1800 Watts x 1.
- Monoblock Phantom amplifier with Class D power supply.
- Delivers 5000 Watts at 1 ohm; 3500 Watts at 2 ohms; 1800 Watts at 4 ohms.
- Line and speaker level inputs with variable gain control.
- Low-pass variable crossover; 18dB bass boost.
- Includes remote sub control.
Class D Topology
----------------
A class-D amplifier or sw amplifier is an electronic
amplifier where all power devices (usually MOSFETs) are operated
as binary switches. They are either fully on or fully off.
Ideally, zero time is spent transitioning between those two
states. In this way, power loss is significantly reduced and
making a D class amplifier anywhere from 75% to 95% efficient. To
maintain high efficiency, the filter is made with purely reactive
components (inductors and capacitors), which store the excess
energy until it is needed instead of converting some of it into
heat. Some other advantages include reduction in size and weight,
reduced power waste as heat dissipation and hence smaller (or no)
heat sinks, and reduction in cost due to smaller heat sink and
compact circuitry.
General Features
----------------
* Thermal, overload, and speaker short protection
* soft turn-on circuit
* Remote turn on / turn off circuit
* Input voltage sensitivity selector
* Gold plated RCA low level inputs
* LED power and protection indicators
* Black anodized heatsink
* Nickel plated speaker and power terminals
MOSFET Power Supply
-------------------
Metal–Oxide–Semiconductor Field-Effect Transistor is a transistor
used for amplifying or sw electronic signals in our
computers, our telephones, game consoles, cars, electrical
appliances, and in this case, our amplifiers. They are found in
systems where information is processed or stored. A MOSFET is
basically an electrical switch that allows the flow of electrical
current. An electrical switch has two possible states, on or off.
This is where the MOSFET performs its most important role in our
D Class amplifiers by allowing or preventing the flow of power
and creating an efficient amplifier.
1 Ohm Stable
------------
The PH5000D is a one ohm stable amplifier which is able to
continuously power loads of one ohm X one channel without
encountering difficulties such as overheating. Almost all car
amplifiers are at least four ohm stable and some are two ohm
stable. One Ohm stable amplifiers are typically made to power up
subwoofers that demand the heavier power load requirements to be
able to perform the way they were made to perform.
Low Level Inputs With Pre-Amp Outputs
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Low Level Inputs With Pre-Amp Outputs
-------------------------------------
A low level input is measured in volts. It comes in the form of
RCA (low level) outputs on the back of your head unit and goes to
the RCA inputs on your amplifier (Right/Left). With that in mind,
you can take control of more power by connecting more amplifiers
together using the RCA pre-amp outputs (Right/Left) from your
primary amplifier straight to the RCA inputs of a second or
satellite amplifier (Right/Left).
Variable Subsonic Filter
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Variable Subsonic Filter
------------------------
Subwoofers start to bottom out trying to reproduce low-frequency
signals that are below their abilities to sound off. Bottoming
out is more a mechanical problem and happens when the subwoofer
driver reaches the limit of its excursion and creates a clacking
or flapping sound instead of the low frequency entering its voice
coils. If your sub is bottoming out, short of changing the driver
into one that has better low-frequency handling, you can try the
PH5000D which has a subsonic filter to filter out frequencies
below its specified low frequency limits.
Variable Crossover
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Variable Crossover
------------------
Subwoofers reproduce sound based low range frequencies. This
process is called the crossover effect and occurs because the
vast majority of audio systems cannot cover the entire spectrum
sufficiently to minimize sound distortion and maintain an
appropriate frequency ratio. In the case of our PH5000D
amplifier, a variable crossover is offered so that you, the
listener, can have the ability to set the frequency at which the
crossover occurs, thereby setting precise sound specifications on
your subwoofer.
Strapping Capable
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Strapping Capable
-----------------
This sounds like exactly what you might be thinking. You are able
to strap your PH5000D amplifier to another PH5000D amplifier and
double the power that is being sent to your subwoofer(s). You now
have the ability to connect more subwoofers to take advantage of
the extra power.
Variable Bass Boost
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Variable Bass Boost
-------------------
With the PH5000D amplifier you have Variable Bass Boost, which
gives you control of exactly how much bass you want to pump out
to your subwoofer(s).
Power Input Terminals
---------------------
When installing all Boss Audio Systems amplifiers, it is
important to use the maximum gauge of wire of the power terminals
will accommodate. For instance, if an amplifier has 4 gauge power
and ground terminals, use high quality 4 gauge multi-strand
copper wire to make your power connections. This maximizes the
amplifier’s ability to draw the required power upon demand. This
also helps prevent overheating that could cause failure. Always
make sure, your vehicle electrical system is capable of handling
the current demands from any after-market accessory.
Note: Please refer to the amplifier owner’s manual for correct
wire gauge size. The power input terminals on this PH5000D
amplifier can accommodate 4 gauge wire.
Fuses
-----
Fuses protect both the amplifier and the electrical system of
your vehicle from faulty conditions. If you must replace a fuse
on the amplifier, always a fuse of exactly the same type and
rating of the one you are replacing. A different type of fuse or
rating may result in damage or cause a fire. Please refer to your
owner’s manual for reference on fuse size and type. Note: This
PH5000D amplifier requires 4 x 35A (140A total) fuses.
If you plan on using multiple amplifiers in your system, be
certain you have the appropriate sized gauge wire to accommodate
the current demands for all amplifiers and that the wire is fused
correctly at the battery. Connect an empty fuse holder within 18"
(45 cm) of the car battery, and run 4 gauge (or heavier) cable
from this fuse to the amplifier location. A fused distribution
block is recommended when using several amplifiers or
accessories.
Proper Grounding
----------------
Proper grounding is essential for any electric accessory in a
vehicle. Some key points to remember: Keep the ground as short as
possible; connect the amplifier’s power ground terminal to the
closest point on the chassis of the car. Keep this ground wire to
less than 39" (100 cm) in length. Use 4 gauge (or heavier) wire.
Scrape any paint away, use a star washer to “bite” into the
metal, and secure it tightly using a grounding lug. Any steps
that aren’t followed properly will result in a higher resistance
at the ground point, causing unnecessary heat, high current draw,
and potentially damaging the electrical accessories in the
vehicle.
Gain/Input Sensitivity
----------------------
The “Gain” or “Input Sensitivity” selectors on an amplifier are
not to be mistaken for a volume setting. This setting allows
users to match the gain from the source unit. To set these
selectors properly, you must “defeat” any processing on your
source unit. In other words, make sure Bass, Treble, and
Subwoofer levels are set to “0” on your source unit before
adjusting the gain or input sensitivity selector on your
amplifier.
Installation
------------
Installation by a professional increases the length of any
applicable warranty on most Boss Audio Systems products. The
warranty is void, however, on product that is damaged during
installation by a non-professional installer.
