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    SKU: OSD-AMP300

    OSD AMP3002-Channel 350W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers

    Purchase 2-Channel 350W Per Channel, High Current Class A/B Stereo Amplifier Toroidal Transformers - AMP300
    • Outdoor Speaker Depot SKU: OSD-AMP300 stereo-amplifer
    • In Stock

      $443.67

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    A heavy-duty 350-Watt A/B two-channel dual source amplifier for use as a remote or single amplifier.

    • Ideal for powering whole-house audio system or dedicated home theaters
    • Equipped with 350 Watts per channel peak power, 470 watts Bridged Mono into 8 ohms
    • Dual source capable for greater listening flexibility
    • Clean, brushed metal front panel with a volume control, power on/off button and balance control
    • Protection circuitry safeguards the amp from a short circuit
    • Can be configured as bridged or stereo amp
    A solid high-power amplifier does more than make the sound you love louder. A well-built power amp cleans up sound quality, improves bass response and delivers the right amount of power to efficiently drive multiple speakers in distributed audio system or home theater. Our AMP300 is a flagship amp that sells well for a reason. This 350-Watt A/B two-channel dual source amplifier is ideal for use as a remote amplifier to power your whole house audio system or as a single amp for a dedicated home theater or media room, and you won't find an amp with the same features that we pack in at such an affordable price. It is stable at 2 ohm load.

    Dual Source Switching
    The AMP300 also includes dual source switching to connect two audio sources and toggle between them for greater listening flexibility. Automatic source switching switches between connected sources with a priority signal-sensing feature, so if a DVD player is connected to input 2, then you decide to stream a movie through a game console, when the console is turned on, the AMP300 automatically switches to that source. The AMP300 also includes a variable delay control that lets you adjust the amount of time needed to "listen" for a signal from your main input, between 3 and 15 seconds. This prevents gaps between music tracks from accidentally switching your inputs. This high power amplifier includes two RCA signal level inputs so with the addition of an RCA-to-mini stereo cable (sold separately), you can connect your smartphone or other device.

    Plenty of Power for the Price
    Pair our AMP300 with the power-hungry speakers, and the sound quality will transform your listening experience. Rated at 350 Watts per channel peak power (470 Watts Bridged Mono into 8 ohms), the AMP300 can be configured as bridged or stereo. In bridged mode, you can combine the left and right channels into one audio channel which bumps up the power to a whopping 470 Watts (8 ohms). When playing dual sources, switch to stereo mode which reduces the power to 350 Watts per channel. It is the only high current 2 ohm load stable amp in the market.

    Features
    The AMP 300 also includes two sets of speaker outputs with front panel controls, auto-on signal sensing or 12-volt trigger, rear panel master level controls, dual line-level inputs with priority override switching and dual voltage of 110V/220V and auto signal sensing. This amp has a clean, brushed metal front panel with a volume control, power on and off button and a balance control knob to adjust the balance between the left and right channels and dial in just the right sound level mix. Special protection circuitry safeguards the amp from a short circuit.

    Warning: California's Proposition 65

    Warning:

    This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

    • Design Type: Class A/B
    • Peak Power Output: 350 Watts per channel
    • Maximum 8 ohm stereo output power at less than 0.2% THD+N: 150W
    • Maximum 4 ohm stereo output power at less than 0.2% THD+N: 235W
    • Maximum 8 ohm Bridged-Mono output power at less than 0.2% THD+N: 470W
    • Frequency Response: (20Hz to 20kHz) +0.0dB, -0.5dB
    • Impedance: 8 ohm to 2 ohm stable
    • Signal to Noise Ratio: -103dB referred to rated power at 4 ohms
    • Turn on options: manual on, signal sensing, and 12V Trigger mode
    • Unique Automatic Dual Source Priority Switching with Speaker Level Input Option
    • Automatic source switching
    • High Output Toroidal Power Supply, High Capacitance and Ample Internal Heatsink
    • Input and Output Terminals: Interrupting line input, main input/output, 12V trigger, speaker zone A output, speaker zone B output
    • Rack Mountable: Yes
    • Dual Source Switching: Yes
    • Dimensions (Lx H x D): 16.5" x 5.25" x 14"
    • Weight: 40 Lbs
    • Warranty: 2 years
    132 Questions asked
    Have a Questions?

    What's on your mind?


    Howard • 12/17/2019, 2:17:43 PM Currently, I am using a Marantz SR7008 receiver (100W/ch) to bi-amp a pair of Jamo speakers (2x100W for 2 drivers per speaker). My other option is to send the front L/R channels via the line outputs to an external amp. I am looking for an external amp that can power the pair of bi-ampable speakers (6-ohm impedance, 250W power handling) to give me better imaging and sound stage. Can I use one AMP300 (speaker A and B outputs) to bi-amp the Jamo speakers? Or should I use two AMP200 to daisy-chain the outputs to the speakers? I am not sure I have the shelf space for two AMP200, so I prefer one unit if possible. Please advise. Thank you.
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Howard, Thank you for contacting us. I guess before I can give you a useful answer, I would need to know a bit more about what you are wanting to accomplish here. Is your goal to have more power only or to be able to control the volume of your tweeters/woofers separately? If power is your goal, adding a single AMP300 isn't going to make much of an impact compared to your Marantz Zone 2. The AMP300 has about 25 more watts which wouldn't make a difference. You would need two AMP300s, one per speaker, to really get more power than that Marantz can give you. But then you are taking control away from the Marantz with all its features and limiting control to the AMP300. If control is your goal, whether you go with the AMP300 or the Marantz for power, you're going to need a stereo crossover box to run through in order to successfully "bi-amp" the speakers. Let me know what your goal is and we can go from there. Thanks! -Bm 2504
    Brian • 12/17/2019, 2:17:43 PM I have your 12 pair speaker selector and I am running 8 pairs of speakers with their own volume controls throughout the house and outside on zone 2 of my receiver. On zone one I am running a 5-1 home theater in my family room. My old receiver had a powered zone 2 and I never had an issue with it shutting off. I now have a new Yamaha receiver that was supposed powered zone 2 but it obviously will not handle the load as it keeps shutting off. Will this Amp solve my problem or is there a less expensive option?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Brian, Yeah, this amp will help as it is high-current, meaning it can handle multiple pairs of speakers with no problem. To get the most power out of the AMP300, you want to utilize both zones which give 150 watts out each. If you just run a single speaker selector on one of the zones, you're only using half the amps' power. My advice would be to run half the speakers on zone 1 and half on zone 2 by splitting them up among two speaker selectors. BM 2772
    Derek • 12/17/2019, 2:17:43 PM I want to purchase 4 of the RS850 speakers to place in yard around our pool. I see this amp as being 2 channel yet there is Speaker A and Speaker B outputs that both have L & R sides. Does this mean this amp will power all 4 speakers at the same time if Speaker A and B are both selected? And would that be enough power to drive all 4 of the 850's that are connected with approximately 80' each of 10ga wire?
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Derek, Yes - this amp will run 2 pairs of speakers, one pair on each zone, but it's not a lot of power, therefore I wouldn't use it with 4 8" rock speakers if you want a lot of power. I would recommend the AMP200 if you want to have some really good power going to those.
    Derek • 12/17/2019, 2:17:43 PM I want to purchase 4 of the RS850 speakers to place in yard around our pool. I see this amp as being 2 channel yet there is Speaker A and Speaker B outputs that both have L & R sides. Does this mean this amp will power all 4 speakers at the same time if Speaker A and B are both selected? And would that be enough power to drive all 4 of the 850's that are connected with approximately 80' each of 10ga wire?
    Customer Service • 12/17/2019, 2:17:43 PM
    Thank you, are you suggesting the AMP200 with all 4 speakers wired to present a 2ohm load? Wouldn't that give me only 1 channel to all 4 speakers? The area I'm wanting to install these is a huge rectangle so I'd like to have at least a left and right side. If I were to wire 2 channels (left and right) having 2 parallel wired speakers on each side to present a 4ohm load the AMP200 would give me 125w per channel, the AMP300 would give me 235w per channel which is closer to the max of 400w. Please correct me if I'm wrong with my calculations.
    Bob • 12/17/2019, 2:17:43 PM Just bought home with speakers in 7 rooms, ea with independent volume control on wall. Plan to use an ONKYO TX-8050 networked receiver. Is it best to use a AMP300 + ATM-7 selector, an AMP300 + DSM8 selector, or ditch the speakers in the bathroom and use an AMP300 + DSM6, or a MX1260. Thanks! Bob
    Customer Service • 12/17/2019, 2:17:43 PM
    Hi Bob, If the volume controls are impedance matching then you can use the ATM-7, if not, use the DSM8 because it has built in impedance protection. Personally I would recommend running two smaller speaker selectors, 1 off Zone A and 1 off zone B of the AMP300. This way you get twice as much power.