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From the Manufacturer
Waterproof Poly Bag Keeps Your Devices Dry 4-Channel Waterproof Marine Amplifier Hydra Series Amplifier Accessory Cables Included Wiring and Controls Diagram
4-Channel Waterproof Marine Amplifier
The Pyle PLMRMP3A is a compact and waterproof 4-Channel Marine Amplifier designed for mounting possibilities in numerous applications and makes it simple to expand the audio system capabilities for your vehicle - perfect for your boat, ATV or RV.
The Hydra Series Amplifier System comes with everything you need to give your sound system a serious boost while providing protection against the elements. Add up to 400 Watt Max power (200 watt power on each of the 2 channels). Create a fitting and truly custom installation with this sound system.
Plug it in
This amplifier kit comes with a waterproof poly bag with 3.5mm jack so you can enjoy playing your favorite audio files from your iPod/MP3 player. The system includes RCA line inputs and the kit comes with a 3.5mm-to-RCA adaptor so you can connect your device. You can also connect standard high and low level inputs from a marine head-unit or car stereo/radio.
Fine-Tune Your Audio
The switches and gain settings are located behind a watertight plug, which also lights up when the amplifier is on. Customize your audio settings and make it sound just the way you want. Make adjustments to:
- Input Level: Set the input sensitivity of the amp. If you are connecting to a LINE level source (typically an RCA type connection) then the switch should be in the LINE (out) position. When connecting to speaker outputs, headphone, or car radio sources then set the switch to the SPEAKER position.
- Polarity: This switch allows the user to optimize bass performance in the case that there are more than 1 set of loudspeakers producing bass in the system. Play some music with strong bass content and listen with the switch alternately in the NORMAL and REVERSE position until it can be determined which settings results in more pleasing bass response.
- Gain Control: Adjusts the overall level of the amplifier. When using the amp without volume control, the level should be set to achieve a balance with other loudspeakers in the system. As a rule, you should keep the gain settings as low as possible while still ensuring that the system will reach its full output power.
- Volume Control Plug for the waterproof remote volume control. When installed, this control will power off the amp when turned all the way down
- RCA Stereo Input: Connect external audio devices like an iPod or just about any other MP3 player.
Custom Installation
Built-in mounting brackets and included hardware allow for easy and convenient installation. Attach the amplifier to a compartment or panel with just a few screws.
Built-in Safety
This amp is equipped with power protection circuitry and soft turn on/off preventing damage to your speaker equipment.
Accessories Included
Kit comes with 4-channel waterproof marine amp, iPod/MP3 waterproof 3.5mm stereo to RCA adaptor, remote control for volume gain and waterproof poly bag.
Add Some Power
With any quality marine audio system, you will need an amp to power your high powered marine audio system. With the Hydra Series Amplifiers you will have all the power you need to run even the highest rating marine system. All Pyle Hydra amplifiers are specially engineered for marine applications.
Additional Features
- 4 x 100 Watts RMS at 4 Ohms
- 4 x 200 Watts Max at 4 Ohms
- 4 x 300 Watts RMS at 2 Ohms
- Fuse: 10A
- RCA Line Input
- T.H.D:
- Soft Turn On/Off
- S/N Ratio: >95dB
- Anti-Thump Turn-On
- 2 Ohms Stereo Stable
- Power Protection Circuitry
- Channel Separation: >65dB
- Volume Gain Remote Control
- Remote Control for Volume Gain
- Converter: High Low Level Inputs
- Frequency Response: 10Hz - 40kHz
- Dimensions: 6.10'' L x 3.35'' W x 1.38'' H
Geeks4x4
2025-08-30 17:52:58
Have been using this amp for over a year now, still sounds great,as others have said the gain control is useless except I just set it and use my iPod as the volume.I'm using it in my jeep with 2 6x9's and two tweeters (tweeters run on one channel) so I have an extra channel, am going to buy a Pyle amp next week to complete.Overall I'd say that for the cost $50 at the time. It is great, straight forward and just plain works.
E. Kent
2025-08-29 10:16:17
Smooth installation of this little amp. The hardware is all there for remote MP3 plug-in, remote volume, speaker lead ins, was thrilled.But then I went to play music.Maximum volume is so low you can only really hear it when there is no wind, not the case on most boats! The advertised wattage should have been plenty of power, but it wasn't.So excellent inexpensive amp, but not suitable for the environment it is marketed towards.I ended spending twice as much on a JBL Marine amp, and now I can hear the music!!! Only regret is wasting the money on the Pyle unit which I threw the box away for so I can't return it. Serves me right for buying the cheap amp.Read David S. Jannke's excellent review for more details.
Chris D.
2025-08-27 13:19:46
Looking to upgrade the sound on my EV/Golf Cart and used to power 2 additional speakers. Easy install for this novice and my speakers sound great!
David
2025-08-07 10:06:05
This amp will do well for most applications, especially the water resistant (NOT fully submersible) ones. Unfortunately like many amp manufacturers Pyle has chosen to exaggerate the amp's wattage rating beyond all reason.This amp (like many other low end auto and motorcycle amps) is built on the Toshiba TA8210AHQ amplifier chip. In this case the amp has two chips with each servicing two channels. According to Toshiba this chip is rated at 22 watts per channel at 18 volts. At your average car voltage levels (12-14 or so) it will deliver less. There is no voltage boosting stage which would be required to anything deliver more than about 40 Watts bridged into 4 ohms and the TA8210 isn't rated for bridging anyway.Note: The technical details posted on this unit as of 7/18/10 are also apparently for some other device. This unit has no AA batteries or USB connection.Some other technical details are inaccurate: The documentation does not mention the unit as bridgable and the chip documentation doesn't either. It IS 2 ohm stable according to the Pyle documentation (a correction). Some elements are barely technically correct: The distortion is only correct at very low power levels and if the unit is providing 22w it is doing it at 10%THD. Frequency response is 20hz - 20k not 10hz - 20kNet recommendation: A good unit for marine, motorcycles and where you don't have space. Not as good as it's specs, but most low end amps are using the exact same chip and circuit design with different housings anyway.
Superman555
2025-08-04 16:04:24
Purchased this amplifier in conjunction with Infinity Marine grade speakers to build an ATV audio tube. Since this is a 4 channel amp and i am running only 2 speakers, I bridged the amp to get more power. What i found was that there was too much power, so i un-bridged it and it still has adequate power. Very clear crisp little amplifier in a compact package. It does get pretty hot, but that's to be expected with anything in a compact package. I suppose the aluminum heat sink enclosure does the trick.
Geeks4x4
2025-07-20 09:29:41
Have been using this amp for over a year now, still sounds great,as others have said the gain control is useless except I just set it and use my iPod as the volume.I'm using it in my jeep with 2 6x9's and two tweeters (tweeters run on one channel) so I have an extra channel, am going to buy a Pyle amp next week to complete.Overall I'd say that for the cost $50 at the time. It is great, straight forward and just plain works.
E. Kent
2025-07-04 12:00:20
Smooth installation of this little amp. The hardware is all there for remote MP3 plug-in, remote volume, speaker lead ins, was thrilled.But then I went to play music.Maximum volume is so low you can only really hear it when there is no wind, not the case on most boats! The advertised wattage should have been plenty of power, but it wasn't.So excellent inexpensive amp, but not suitable for the environment it is marketed towards.I ended spending twice as much on a JBL Marine amp, and now I can hear the music!!! Only regret is wasting the money on the Pyle unit which I threw the box away for so I can't return it. Serves me right for buying the cheap amp.Read David S. Jannke's excellent review for more details.
Chris D.
2025-06-30 15:33:56
Looking to upgrade the sound on my EV/Golf Cart and used to power 2 additional speakers. Easy install for this novice and my speakers sound great!
David
2025-06-20 13:16:44
This amp will do well for most applications, especially the water resistant (NOT fully submersible) ones. Unfortunately like many amp manufacturers Pyle has chosen to exaggerate the amp's wattage rating beyond all reason.This amp (like many other low end auto and motorcycle amps) is built on the Toshiba TA8210AHQ amplifier chip. In this case the amp has two chips with each servicing two channels. According to Toshiba this chip is rated at 22 watts per channel at 18 volts. At your average car voltage levels (12-14 or so) it will deliver less. There is no voltage boosting stage which would be required to anything deliver more than about 40 Watts bridged into 4 ohms and the TA8210 isn't rated for bridging anyway.Note: The technical details posted on this unit as of 7/18/10 are also apparently for some other device. This unit has no AA batteries or USB connection.Some other technical details are inaccurate: The documentation does not mention the unit as bridgable and the chip documentation doesn't either. It IS 2 ohm stable according to the Pyle documentation (a correction). Some elements are barely technically correct: The distortion is only correct at very low power levels and if the unit is providing 22w it is doing it at 10%THD. Frequency response is 20hz - 20k not 10hz - 20kNet recommendation: A good unit for marine, motorcycles and where you don't have space. Not as good as it's specs, but most low end amps are using the exact same chip and circuit design with different housings anyway.
Superman555
2025-06-04 12:53:46
Purchased this amplifier in conjunction with Infinity Marine grade speakers to build an ATV audio tube. Since this is a 4 channel amp and i am running only 2 speakers, I bridged the amp to get more power. What i found was that there was too much power, so i un-bridged it and it still has adequate power. Very clear crisp little amplifier in a compact package. It does get pretty hot, but that's to be expected with anything in a compact package. I suppose the aluminum heat sink enclosure does the trick.
danny
2025-06-02 14:35:39
Listen to the other reviews and save your time. Was hooking it up to my Harley for a little more sound out of the rear 6x9 I just installed. Needless to say my aquatic head u it has more power than this garbage. Waste of time.
T Monteiro
2025-05-26 13:57:06
I was expecting higher amp power and volume.
airman2091
2025-05-23 21:50:06
Well I bought one a few months back for my yamaha v star and thought it did a great job at a cheap price so I thought I would try it on my harley while adding some 2 ohm upgraded speakers to my fairing. Well so far I am not at all disappointed, I believe if you ran this amp wide open it will destroy your speakers unless they are 200 watt rms. My speakers are 100 watt rms and I have to dial the amp back a bit. The amp will also get hot if you overdrive it, wide open gain and wide open volume, but it has never failed. For under 50 bucks there is no way you can beat this deal. It really does sound great and will drive four channels equally. It also comes with a 3.5mm stereo jack insert you can mount on your bike in your fairing, and the amp external volume control you can also mount on your fairing. Its not really meant to be a volume control, but a gain control that you should set and leave it be. control your volume on your radio. I just can't say enough good things about this amp for that price. I would buy it again and again. Have two now.
Customer
2025-05-11 11:42:05
Very good keep up the good work but price is a bit to hight
F.H.
2025-05-01 20:57:07
Sehr kleiner und guter Verstärker für einen günstigen Preis.Ich benutze den Verstärker in einer selbst gebauten Boombox und habe 4 Lautsprecher angeschlossen, der Anschluss ist super einfach und auch für Laien machbar. Man kann über des beigefügte Kabel MP3 Player o.Ä. anschließen, benötigt aber dafür ein extra Klinkenkabel. Ein Drehknopf wird angeschlossen, mit dem man den Verstärker ausschalten kann (allerdings regelt dieser nicht die Lautstärke, was ich etwas seltsam finde), eine richtige Fernebdienung ist nicht enthalten. Zudem gibt es eine Hülle für das Handy/MP3 Player, die wasserdicht ist.Ob der Verstärker wirklich wasserfest ist habe ich noch nicht getestet, mir ging es hauptsächlich darum 4 Kanäle zu haben und das bei einer kompakten Größe. Diese Voraussetzungen wurden erfüllt. Der Klang mit dem Verstärker ist ordentlich, könnte aber besser sein (wobei man bei dem Preis definitiv auf dem Teppich bleiben sollte was die Erwartungen angehen), es gibt kein Rauschen, der Klang ist klar (bitte auch bedenken, dass die angeschlossenen Lautsprecher einen großen Einfluss haben).Insgesamt bin ich zufrieden und ich würde das Produkt wieder kaufen.
Jolly Roger
2025-04-26 14:07:26
I bought this because the inbuilt amplifier in my head unit shut down.What I found it tht the sound is punchier, more open and musical than the inbuilt chipsets claiming to be the same output power.Quality is high and the inclusion of much of the cabling makes for a simple installation.
PAPA SCOOT
2025-04-21 10:03:52
It's was small and easy to conceal.Does not meet it's power ratings 😔
Sam Lemkey
2025-04-14 14:33:21
NOT a 4 x 100w rms amp. It's likely a 100w rms amp which is split over 4 channels, so actually a 4 x 25w amp. It's a bit disappointing but then again you get what you pay for, especially with audio products.Pretty good build quality, does what I need it to do (just).
danny
2025-04-13 10:29:08
Listen to the other reviews and save your time. Was hooking it up to my Harley for a little more sound out of the rear 6x9 I just installed. Needless to say my aquatic head u it has more power than this garbage. Waste of time.
T Monteiro
2025-04-09 12:16:06
I was expecting higher amp power and volume.
airman2091
2025-04-04 13:30:07
Well I bought one a few months back for my yamaha v star and thought it did a great job at a cheap price so I thought I would try it on my harley while adding some 2 ohm upgraded speakers to my fairing. Well so far I am not at all disappointed, I believe if you ran this amp wide open it will destroy your speakers unless they are 200 watt rms. My speakers are 100 watt rms and I have to dial the amp back a bit. The amp will also get hot if you overdrive it, wide open gain and wide open volume, but it has never failed. For under 50 bucks there is no way you can beat this deal. It really does sound great and will drive four channels equally. It also comes with a 3.5mm stereo jack insert you can mount on your bike in your fairing, and the amp external volume control you can also mount on your fairing. Its not really meant to be a volume control, but a gain control that you should set and leave it be. control your volume on your radio. I just can't say enough good things about this amp for that price. I would buy it again and again. Have two now.
Customer
2025-03-10 12:02:36
Very good keep up the good work but price is a bit to hight
F.H.
2025-03-04 14:26:30
Sehr kleiner und guter Verstärker für einen günstigen Preis.Ich benutze den Verstärker in einer selbst gebauten Boombox und habe 4 Lautsprecher angeschlossen, der Anschluss ist super einfach und auch für Laien machbar. Man kann über des beigefügte Kabel MP3 Player o.Ä. anschließen, benötigt aber dafür ein extra Klinkenkabel. Ein Drehknopf wird angeschlossen, mit dem man den Verstärker ausschalten kann (allerdings regelt dieser nicht die Lautstärke, was ich etwas seltsam finde), eine richtige Fernebdienung ist nicht enthalten. Zudem gibt es eine Hülle für das Handy/MP3 Player, die wasserdicht ist.Ob der Verstärker wirklich wasserfest ist habe ich noch nicht getestet, mir ging es hauptsächlich darum 4 Kanäle zu haben und das bei einer kompakten Größe. Diese Voraussetzungen wurden erfüllt. Der Klang mit dem Verstärker ist ordentlich, könnte aber besser sein (wobei man bei dem Preis definitiv auf dem Teppich bleiben sollte was die Erwartungen angehen), es gibt kein Rauschen, der Klang ist klar (bitte auch bedenken, dass die angeschlossenen Lautsprecher einen großen Einfluss haben).Insgesamt bin ich zufrieden und ich würde das Produkt wieder kaufen.
Jolly Roger
2025-02-18 16:47:13
I bought this because the inbuilt amplifier in my head unit shut down.What I found it tht the sound is punchier, more open and musical than the inbuilt chipsets claiming to be the same output power.Quality is high and the inclusion of much of the cabling makes for a simple installation.
PAPA SCOOT
2025-02-08 09:13:14
It's was small and easy to conceal.Does not meet it's power ratings 😔
Sam Lemkey
2025-01-26 15:51:17
NOT a 4 x 100w rms amp. It's likely a 100w rms amp which is split over 4 channels, so actually a 4 x 25w amp. It's a bit disappointing but then again you get what you pay for, especially with audio products.Pretty good build quality, does what I need it to do (just).
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