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PMC PMC8 SUB Active Studio Subwoofer

Active Studio Subwoofer with 300W 200mm Woofer and Advanced Transmission Line Cabinet (each)
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Item ID: PMC8SUB
PMC PMC8 SUB Active Studio Subwoofer
Price:$3,740 and 00 cents
Special Financing - Ends Aug 2, 2026. $104/month with 36 month financing*

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PMC PMC8 SUB Active Studio Subwoofer
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Price:$3,740 and 00 cents
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Improve Your Monitoring System Performance

The PMC 8 SUB is a versatile studio subwoofer that can be used in one of two ways. It can be deployed conventionally with any monitor speakers to extend the low frequencies in a stereo setup or to reproduce an LFE channel in a surround configuration. Combined with PMC near or midfield monitors, it can be used to form an XBD system. As an XBD expansion, the PMC 8 SUB’s audio input runs through the same filters as the main monitor’s woofer, duplicating LF content and enabling the system to reach a higher maximum SPL. Any way you use it, the PMC 8 SUB improves your monitoring system performance to help you make better-sounding recordings.

Optimized electronics, formidable power

The PMC 8 SUB is amplified by a next-generation ICEPower amplifier delivering 300 watts to the 200mm LF driver. For setup flexibility, the XLR input is switchable between analog and digital AES. A joint venture with the iconic high-end consumer electronics company Bang & Olufsen, ICEPower was founded in 1999 at a time when Class D amplification, which had been around since the 1950s, had matured and was starting to be deployed in pro audio applications such as active monitor speakers; where high power, light weight, and cool-running operation were desirable. ICEPower’s close association with B&O gave them access to the resources, technical expertise, quality-control processes, and business acumen of a well-established company and today, the company’s advanced amplification modules are found in world-class products throughout the pro audio, consumer electronics, and automotive industries.

Advanced Transmission Line Technology delivers cleaner, deeper bass

Since their first professional studio main monitor design was embraced by the music, broadcast, and post-production industries in the early 1990s, PMC has become famous for their proprietary Advanced Transmission Line (ATL) technology. A transmission line is a method of loading a low-frequency speaker in a cabinet so that undesirable frequencies radiating from the rear of the driver are absorbed, allowing only the lowest frequencies to pass. These emerge from a front-baffle vent, which effectively acts as an auxiliary LF driver that extends bass response while absorbing undesirable low frequencies that contribute to harmonic distortion, clouding the upper bass and midrange. One of the keys to PMC speakers’ natural, highly detailed sound, ATL technology delivers deeper bass and higher output from smaller cabinets, while providing rich, full sound at any listening level. And because ATL bass extension doesn’t vary with volume levels, the low end is well-defined and always in balance, even when listening quietly.

Mixes that translate

Engineers at Sweetwater know that there’s no substitute for midrange clarity in a monitor. This is the heart of your mix, and it remains relevant regardless of playback system. That’s why you can spend hours struggling to achieve a perfect balance and end up with nothing but frustration, listening fatigue — and a mix that doesn’t “translate.” In addition to improving bass response, PMC’s ATL technology also mitigates troublesome frequencies and eliminates port noise that can mask the midrange in other types of monitor speaker designs. As a result, you’ll find it’s easier to place, for instance, vocals and solo instruments in a mix, allowing you to achieve an ideal balance that translates to the world outside your studio.

PMC 8 SUB Active Studio Subwoofer Features:

  • Frequency response: 32Hz–300Hz
  • ICEPower Class D amplification: 300W
  • Effective ATL length: 3 meters
  • Drive unit: PMC 200mm woofer (newly designed)
  • Input connector: XLR, switchable between analog and digital AES
  • Output connector: XLR digital AES (96kHz)
  • Sample rate: 18–192kHz, 24-bit via internal sample rate converter
  • Mains connector: IEC, 180-264V AC (auto-sensing)

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Tech Specs

  • Powered: Yes
  • Speaker Size: 8"
  • Total Power : 300W Class D
  • Frequency Range: 25Hz-500Hz
  • Maximum Peak SPL: 121dB @ 1m
  • Input Types: 1 x XLR (analog/AES)
  • Output Types: 1 x XLR (analog/AES)
  • Other I/O: 1 x RJ45
  • Height: 10.5"
  • Width: 21.7"
  • Depth: 17.3"
  • Weight: 40.8 lbs.
  • Manufacturer Part Number: PMC 8 SUB

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Reviews

Great Sound, Weird Routing
I do love the sound of this sub, it is a perfect addition to the PMC6 pair, and I love PMC's control system. HOWEVER, the ways to run it Mono are a little confusing and limited. If you're like me, buying almost 10k of stereo subs ain't worth it if you can make one work. Here is how I had to do it.

This sub does not have stereo ins. If you jump off of one PMC6 digital out, you're only going to have low end info from that channel which is not ideal for several reasons. You will have to find a way to either duplicate your main signal, which did not work for me when using Y splitters on my main outputs. These speakers did not seem to like the feedback that comes from signal splitting. (Weird, immediate phase issues between the main two monitors when all were connected.) instead, I had to run out of my 3&4 channels, sum them to mono, and mirror their volume control to my main outs.

There are several ways to integrate this sub as mono, especially if you're using something like the Dangerous Audio station which has a sub out, but the sub itself is not ideal for it based on its mono-only input. PMC designed it to work as a stack with/per-PMC 6, using their crossover technology, but it just works better for me and my wallet to run it mono. And it now finally works, after much experimentation. If you intend to run it mono, I recommend doing it via mirroring channels of your interface vs. trying to analog-cable split.