SKU: RMX850a  |  UPC: 684284062765

QSC RMX850a Power Amplifier (300 W per Channel)

$699.99
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Product Highlights:
  • 300 Watts per Channel 4Ω
  • 830 Watt Bridgeable Mono Mode 4Ω
  • LED Indicators for Power, Signal, Clip
  • Built-In Protection Circuits

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DUNS #074303253

IRS W-9 form

  • 300 Watts per Channel 4Ω

  • 830 Watt Bridgeable Mono Mode 4Ω

  • LED Indicators for Power, Signal, Clip

  • Built-In Protection Circuits



  • 300 Watts per Channel 4Ω

  • 830 Watt Bridgeable Mono Mode 4Ω

  • LED Indicators for Power, Signal, Clip

  • Built-In Protection Circuits

  • User-Defeatable Clip Limiters

  • Balanced 1/4" TRS, XLR, and Strip Inputs

  • Neutrik Speakon Output Connectors

  • High-Current Toroidal Transformers


The QSC RMX850a Power Amplifier, delivering 300 watts per channel at 4Ω, is a reliable 2RU rack-mountable amplifier explicitly designed for live sound reinforcement applications. This amplifier is a workhorse with two Class AB output channels capable of operating in both stereo and mono bridge mode.

Running on a standard 15 amp plug, the RMX850a employs high-current toroidal transformers to ensure reduced noise and enhanced performance, even under the demanding load of 2 ohms. To further enhance audio quality and minimize distortion, the amplifier features independent user-defeatable clip limiters. Additionally, it comes equipped with LED indicator lights that not only signal the presence of a signal but also indicate when the signal is clipping, allowing for precise control and monitoring. The QSC RMX850a is a dependable choice for powering live sound setups with excellence and clarity.

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QSC RMX850a Power Amplifier (300 W per Channel)
QSC

QSC RMX850a Power Amplifier (300 W per Channel)

$699.99

Brightness

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Weight without stand

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Weight with Stand

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Duty Cycle

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Dimensions

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Content

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Native Resolution

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Lumens (ANSI)

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Contrast Ratio

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Throw Distance

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Lens

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Inputs

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Outputs

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Display Technology

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Wireless Networking

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Speakers

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Economode

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Audible Noise

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Lamp Life

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Short Throw

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Aspect Ratio

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Image Size Diagonal

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Lens Shift

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Data / Video Signals

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Digital Keystone

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Unit Weight

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Projector Methods

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Dimensions (WxDxH)

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Dimensions (WxDxH)

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Contrast Ratio

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Viewing Angle

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Response Time

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Sound Output

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Screen Size

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Monitor Configuration

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Display Orientation

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WiFi

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Communication Port

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Refresh Rate

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General

<div class="group_fDXOr6EpR9">
<table class="table_fDXOr6EpR9" data-selenium="specsItemGroupTable">
<tbody>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv firstSpecWhenNoGroupName_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Number of Channels</td>
<td class="value_KqJ3Q3GPKv firstSpecWhenNoGroupName_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">2</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Power Rating</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv"><b>8 Ohms:</b>
185 W per Channel (Full Range, 0.1% THD)
530 W Bridged (Full Range, 0.1% THD)
200 W per Channel (1 kHz, 0.1% THD)
600 W Bridged (1 kHz, 0.1% THD)
<b>4 Ohms:</b>
280 W per Channel (Full Range, 0.1% THD)
300 W (1 kHz, 0.1% THD)
830 W Bridged (1 kHz, 0.1% THD)
<b>2 Ohms:</b>
430 W per Channel (1 kHz, 0.1% THD)</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Amplifier Class</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">Class-AB</div></td>
</tr>
</tbody>
</table>
</div>
<div class="group_fDXOr6EpR9">
<div class="name_fDXOr6EpR9" data-selenium="specsItemGroupName">Performance</div>
<table class="table_fDXOr6EpR9" data-selenium="specsItemGroupTable">
<tbody>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnLabel">Protections</td>
<td class="value_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">AC Coupling, On/Off Muting, Open Circuit, Overvoltage, RF, Reactive/Mismatched Load, Short Circuit, Thermal, Ultrasonic</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Frequency Response</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">20 Hz to 20 kHz +0/-1 dB (-3 dB)<b></b>
5 Hz to 50 kHz (HPF Off, 8 Ohms)<b></b></div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Damping Factor</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">&gt; 300 at 8 Ohms</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Input Sensitivity</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">1.15 V / 3.4 dBu (at 8 Ohms)</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Input Impedance</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">10 Kilohms (Unbalanced)
20 Kilohms (Balanced)</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Max Gain</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">30 dB</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">SNR</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">&gt; -100 dB</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">THD</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv"><b>4 / 8 Ohms:</b>
&lt; 0.03% (Full Range, at Rated Power -10 dB)
&lt; 0.03% (1 kHz, at Rated Power)</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Intermodulation Distortion</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">&lt; 0.01% (SMPTE)</div></td>
</tr>
</tbody>
</table>
</div>
<div class="group_fDXOr6EpR9">
<div class="name_fDXOr6EpR9" data-selenium="specsItemGroupName">Connectivity</div>
<table class="table_fDXOr6EpR9" data-selenium="specsItemGroupTable">
<tbody>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnLabel">Analog Audio I/O</td>
<td class="value_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv"><b>2 x </b>Binding Post Pair Output
<b>2 x </b>speakON Output
Block 3-Pin Balanced Input
<b>2 x </b>XLR 3-Pin Input
<b>2 x </b>1/4" TRS Input</div></td>
</tr>
</tbody>
</table>
</div>
<div class="group_fDXOr6EpR9">
<div class="name_fDXOr6EpR9" data-selenium="specsItemGroupName">Power</div>
<table class="table_fDXOr6EpR9" data-selenium="specsItemGroupTable">
<tbody>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnLabel">AC Input Power</td>
<td class="value_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv"><b>Factory Set:</b>
100 VAC, 50 / 60 Hz
120 VAC, 50 / 60 Hz
230 VAC, 50 / 60 Hz</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Current Consumption</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">4.5 A</div></td>
</tr>
</tbody>
</table>
</div>
<div class="group_fDXOr6EpR9">
<div class="name_fDXOr6EpR9" data-selenium="specsItemGroupName">Physical</div>
<table class="table_fDXOr6EpR9" data-selenium="specsItemGroupTable">
<tbody>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnLabel">Display &amp; Indicators</td>
<td class="value_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">Green LED (Power)
Yellow LED (Signal, per Channel)
Red LED (Clip, per Channel)
Red LED (Protect, per Channel)</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Rackmount Size</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">2 RU</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Cooling</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">Fan (Variable Speed)</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Dimensions</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">3.5 x 19.0 x 15.9" / 89.0 x 482.0 x 404.0 mm</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Weight</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">35 lb / 15.9 kg</div></td>
</tr>
</tbody>
</table>
</div>
<div class="group_fDXOr6EpR9">
<div class="name_fDXOr6EpR9" data-selenium="specsItemGroupName">Packaging Info</div>
<table class="table_fDXOr6EpR9" data-selenium="specsItemGroupTable">
<tbody>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnLabel">Package Weight</td>
<td class="value_KqJ3Q3GPKv " data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">36.4 lb</div></td>
</tr>
<tr class="pair_KqJ3Q3GPKv" data-selenium="specsItemGroupTableRow">
<td class="label_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnLabel">Box Dimensions (LxWxH)</td>
<td class="value_KqJ3Q3GPKv" data-selenium="specsItemGroupTableColumnValue">
<div class="expandableValue_KqJ3Q3GPKv">24 x 22 x 6"</div></td>
</tr>
</tbody>
</table>
</div>

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VESA Pattern

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TAA Compliant

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PDF Documents

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Diagonal Size

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Dimensions

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Aspect Ratio

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Sensor

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Resolution

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Signal Sysyetm

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Signal To Noise Ratio

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Gain

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Shutter Speed Range

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Exposure Control

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N/A

White Balance

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N/A

Image Stabilization

N/A

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Image Flip

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ICR

N/A

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Sync

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Output

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Audio Input

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Audio

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Camera Control

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Focal Length

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Minimum Object Distance

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Pan Angle

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Tilt Angle

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Pan Speed

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Tilt Speed

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Presets

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Operating Temperature

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Power

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Power Consumption

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Minimum Illumination

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Optical Zoom

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TAA Compliant

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