Radio Shack PLMRA420 User Manual
www.pyleaudio.com
amplifiers
Brooklyn, NY 11204
1600 63rd Street
Pyle Service Center
R.A.#
damage.
improperly serviced, or subject to misuse, neglect, or accidental
This warranty will be considered void if the unit was tampered with,
replacement of the defective unit when it is returned to us prepaid.
Our obligation under this warranty is limited to the repair or
expiration date.
handling, and insurance, or provide your Visa/MC number with
• also include a check or money order for $18.00 for return shipping,
and R.A. number
• include in your letter your return address, daytime phone number,
• A brief letter indicating the problem you are experiencing
• A copy of your sales receipt or other proof of purchase
You must also include the following items:
limited warranty policy
user’s manual
and shipped prepaid to:
When returning a product to us for warranty service it must be carefully packed
relating to your return.
R.A.# must appear on the outside of your package and on all paperwork
number at (718) 236-6948 to obtain a Return Authorization number. This
To obtain warranty service you must first call our Consumer Return Hotline
your unit will be repaired or replaced at the sole discretion of Pyle.
Should the product fail due to factory defects in material or workmanship,
warranty is limited to the original retail purchase.
in material and workmanship for two (2) years from the date of purchase. This
shipment. Products purchased in the USA are warranted to be free of defects
All Pyle products are carefully constructed and thoroughly tested before
PLMRA220
PLMRA420
high performance car audio amplifier
congratulations...
on your purchase of a Pyle
extends the Pyle tradition into a totally new series of amps, designed
from the ground up to deliver the power, performance and flexibility
the modern car audio enthusiast demands.
When you check the list of features offered by the PLMRA220,PLMRA420
you’ll
know you made the right choice with a Pyle
Marine
table of contents
Series amplifier. This amplifier
Marine
amplifier.
general features
features and specifications
PLMRA220
features and specifications
PLMRA420
electrical connections
PLMRA220/PLMRA420
stereo input connections
PLMRA220
mono input connections
2/4 channel input connections
PLMRA220
PLMRA420
2
3-4
5-6
7-8
9
10
11
high level input connections
PLMRA420
mono input connections
high level mono input connections
protection circuitry and troubleshooting
PLMRA420
PLMRA420
speaker connections
PLMRA220
speaker connections
PLMRA420
speaker connections
PLMRA420
mounting and installation
precautions
12
13
14
15
16
17
18
19
20
general features
PLMRA220
High Performance 600 Watt 2 Channel
Bridgeable MOSFET Amplifier
· 300 Watts x 2 Output
· 600 Watts x 1 Bridged Output
· Variable Hi/Lo Electronic Crossover Network
· Variable Bass Boost (0 - +18 dB @ 60Hz)
· Variable Input Level (Gain) Control
· Remote Turn On/Off
· Gold Plated RCA Inputs
· High Level MOLEX Input
· Power ON LED Indicator
· LED Protection Indicator
· S/N Ratio: > 95 dB
· THD: <0.04%
· Thermal Protection
· Overload Protection
· Short Circuit Protection
· Anti-Thump Turn-On
· Blue LED Level Display
PLMRA220
power LED
protection LED
high pass frequency control
low pass frequency control
PLMRA420
High Performance 1000 Watt 4 Channel
Bridgeable MOSFET Amplifier
· 250 Watts x 4 Output.
· 500 W x 2 Bridged Output ( 250 W x 2 + 500 W x 1)
· Dual Variable Hi/Lo Electronic Crossover Network
· Dual Variable Bass Boost (0 - +18 dB @ 60Hz)
· Variable Input Level (Gain) Control
· Remote Turn On/Off
· Gold Plated RCA Inputs
· High Level MOLEX Inputs
· Power ON LED Indicator
· LED Protection Indicator
· S/N Ratio: > 95 dB
· THD: <0.04%
· Thermal Protection
· Overload Protection
· Short Circuit Protection
· Anti-Thump Turn-On
· Tri-Mode Configurable
· Blue LED Level Display
features and controls
2 ch amp PLMRA220
high level inputs
low level inputs
input level control
crossover mode selector
bass boost level
2
3
speaker connections
power fuse
power terminals
crossover mode selector
input level control
low pass frequency control
high pass frequency control
bass boost level control
low level inputs
high level inputs
power LED
protection LED
power fuse
power terminals
speaker connections
features and specifications
when used with normal, full range systems, set this switch to “FULL.” If
you wish to use the internal crossover to power a driver of specific frequency
range, use the “LOWPASS” or “HIGHPASS” settings.
use this control to match the outputs of your head unit to the amplifier.
Starting with your head unit set at about the 2 o’clock position, increase
the amp level control until distortion begins to occur, and reduce slightly
from this point.
when the crossover selector switch is in “low pass” mode, this control sets
the upper frequency limit for audio program sent to the speakers.
when the crossover selector switch is in “high pass” mode, this control
sets the lower frequency limit for audio program sent to the speakers.
this control permits adjustment of the bass level up to an increase of
approximately 18 dB.
this amp features gold-plated RCA input jacks for high impedance input.
Use these with car stereo output which uses RCA-type connector cables.
if your car stereo lacks RCA-type output jacks, you may connect speaker
output leads to these input connectors.
this indicator is illuminated when power is applied.
this indicator is illuminated when built-in protection circuitry is activated.
the fuse protects the amplifier and your car’s electrical system from short
circuit conditions.
use these connectors to deliver power, ground and remote turn-on control
to the amplifier.
these terminals are 14K gold plated to guarantee high conductivity and
minimum signal loss.
2 ch amp PLMRA220
output power @ 14.4v DC, 1KHz
RMS Power @ 4 Ohms
RMS Power @ 2 Ohms
Maximum Power Output
frequency response
input impedance
low level inputs
high level inputs
input sensitivity
low level inputs
high level inputs
power supply voltage
matching speaker impedance
stereo mode
bridged mode
maximum current draw
dimensions (W x H x L)
PLMRA220
2 channel amplifier
40 Watts x 2
70 Watts x 2
300 Watts x 2
15 Hz-30 KHz
10K Ohms
100 Ohms
250mV
2.5V
14.4V DC Neg. Ground (10.5-16V)
2-4 Ohms
4-8 Ohms
15A
mm
276 x 69.5 x 209
inches
10.9 x 2.7 x 8.25
4
PLMRA420
ch 3/4 high pass frequency control
ch 3/4 low pass frequency control
ch 3/4 bass boost level control
ch 3/4 crossover mode selector switch
ch 3/4 input level control
ch 3/4 high level inputs
speaker connections
ch 3/4 low level inputs
protection LED
features and specifications
4 ch amp PLMRA420
ch 1/2 high pass frequency control
ch 1/2 low pass frequency control
ch 1/2 bass boost level control
ch 1/2 crossover mode selector switch
ch 1/2 input level control
ch 1/2 low level inputs
power LED
power terminals
power fuse
ch 1/2 high level inputs
5
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