Rolls PM55P Personal Monitor Amp review for live sound and stage performance

Description

Design and Build Quality

The rolls PM55P Personal Monitor Amp Battery Opt is compact and incredibly lightweight, weighing only 1.2 pounds. Its clip-on mounting type makes it easy to attach to belts or other surfaces, which I found particularly convenient during live performances. The plastic-synthetic material construction feels durable enough for its purpose but doesn’t scream “premium.” While the black finish gives it a sleek and professional look, I did notice that the material is prone to small scratches over time, especially if you carry it around frequently. The 4-inch height and 4.5-inch width make it portable and easy to store, yet it’s sturdy enough to handle the wear and tear of regular use.

From an ergonomic standpoint, the touch control method is simple and intuitive. However, I felt the buttons could have been a tad larger to make adjustments easier during high-pressure moments like live shows or rehearsals. Performers, particularly drummers and vocalists, would appreciate its minimalistic design, as it doesn’t add unnecessary bulk to their gear setup.

Key Benefits

One of the standout features of this personal monitor is the built-in switchable optical limiter, which prevents signal clipping. During my testing, this feature was a lifesaver when dealing with unpredictable volume spikes. The stereo/mono 1/4-inch monitor input and XLR mic input with pass-through make it versatile for connecting with various devices, from microphones to mixers.

The ground lift on the XLR signal is another thoughtful addition that eliminates hum caused by ground loops. I tested it in a few venues notorious for electrical noise, and it worked like a charm. The signal-to-noise ratio of 90 dB ensures clear, crisp audio, even in noisy environments. Another big plus is the 3.5mm and 1/4-inch headphone outputs, which accommodate different headphone types.

• Lightweight and portable design ideal for performers on the go.
• Optical limiter ensures consistent audio quality without distortion.
• Multiple input/output options for versatile connectivity.
• Ground lift feature eliminates electrical hum efficiently.
• High signal-to-noise ratio offers clear and professional audio.

Areas for Improvement

Despite its merits, there are a few less favorable aspects to consider. The plastic build, while lightweight, does feel less robust compared to metal-bodied alternatives. It’s not something I would drop repeatedly and expect to survive without a scratch or crack. Additionally, the battery-powered functionality, while convenient, has its downsides. I noticed that the 9-volt battery drains relatively quickly if you’re using it for extended periods. Relying on the included power supply is an option, but it somewhat defeats the purpose of its portability.

The lack of water resistance is another limitation. It’s not something you want to expose to moisture or even light rain. Lastly, while the headphone outputs are versatile, the output impedance of 10 Ohms may not suit users with high-impedance headphones, as they might notice a slight drop in volume.

• Plastic construction could be more durable.
• Battery life isn’t ideal for prolonged sessions.
• Not suitable for high-impedance headphones.
• No water resistance, which limits outdoor usage.

Performance and Usability

Testing this device was an interesting experience, especially given its target audience. The rolls PM55P is clearly designed for those who need reliable, real-time monitoring. As a vocalist, I found the ability to mix my voice with the main mix invaluable. The 20 dB gain on the 1/4-inch input and 50 dB gain on the XLR input provided plenty of headroom, ensuring my vocals were always audible without distortion.

Drummers will love how it handles a click track mixed with monitors, making it easier to stay on tempo. I also handed it over to a friend who’s a sound technician, and he appreciated its use as a quick line tester for troubleshooting audio systems. Its frequency range of 50-20 kHz ensures it captures a wide spectrum of sound without losing detail. However, the maximum input level of -20 dB XLR might be limiting for some users with high-output microphones.

Competing Products

Compared to other personal monitoring options like the Behringer Powerplay P1 or the Mackie HM-4, the rolls PM55P holds its own in several ways. The optical limiter is a feature you won’t find in many competitors at this price point, giving it a clear edge for live performers worried about signal spikes. However, the Behringer Powerplay P1, with its metal housing and dual-channel monitoring, feels more durable for rough handling.

The Mackie HM-4, on the other hand, offers multiple headphone outputs, making it a better choice for group monitoring situations. That said, the rolls PM55P’s portability and ground lift feature make it a better fit for solo performers or small-scale setups. If durability is your main concern, you might lean toward the Behringer. But for versatility and ease of use, this product is hard to beat.

Cost-Effectiveness

Looking at the price-to-quality ratio, the rolls PM55P offers excellent value for its features. While it may not be the cheapest option on the market, its unique features like the optical limiter and ground lift justify the investment. It’s ideal for performers, sound technicians, and even church choir singers who need a reliable monitoring solution. If you’re on a tight budget, there are more affordable alternatives, but they might not include the same level of functionality or versatility. For what you’re getting, it feels like a smart spending choice that balances quality and affordability.

Additional information