Soundcraft Ui12 +Syrincs D112SP Set

I spent several weeks running the Proel Session4 as my go-to compact PA for small acoustics-only gigs, singer-songwriter nights, and background DJ sets, and I appreciated how it aims to combine a column-style vertical array with a bandpass subwoofer into a single, transportable package. From my perspective the Session4 is pitched at performers who need more projection and control than a single active monitor can give, but who still want a system that packs down small and sets up quickly.

First Impressions

My first impression was that Proel tried to make something more versatile than a simple "plug-and-play" party box - the Session4 arrives as a three-piece 2.1 system with two narrow tops that slot into the sub for transport, and its plywood cabinets feel noticeably more robust than typical plastic combo rigs at this price. The tops are light and easy to handle while the sub has ergonomic handles and a built-in storage bay for the tops, which made loading and unloading into my car effortless. Out of the box the finish and fit-and-finish looked professional, and the intuitive single-encoder plus LCD control made selecting DSP presets and routing modes straightforward before I even read the manual.

Design & Build

The Session4 uses plywood cabinets finished in a tough black polyurethane paint, and I noticed that immediately when hefting the sub and tops - this is not the molded plastic you often get on economy systems. The top enclosures contain four 2.75-inch neodymium full-range drivers arranged in a vertical, logarithmic array with progressive tilt to widen vertical coverage, while the sub houses two 6.5-inch high-excursion woofers in a bandpass layout. The tops couple quickly to each other and feed power/signal to the sub via speakON links, and the overall fit, grille work, and connectors felt solid and gig-ready - nothing rattled or felt underbuilt during my time with it.

Controls & DSP

I liked the DSP approach - Proel's CORE LT DSP runs at 24 bit / 48 kHz and gives you selectable presets (MUSIC, LIVE, DJ, SPEECH) plus a Dynamic EQ and digital limiter, all accessed through a single rotary encoder and a clear LCD. In practice I found the presets useful starting points: MUSIC and LIVE tightened the low end and opened the mids, while SPEECH cleaned things up for spoken-word gigs with minimal fiddling. The DSP also allows you to choose system configuration between STEREO, MONO, and DOUBLE, which made it easy to adapt the rig to either a true stereo playback or a louder mono single-array setup for speech-heavy events.

Sound & Performance

Sonically the Session4 surprised me with how defined the midrange is for a compact 2.1. Vocals and acoustic guitar came through with clarity and presence that cut through a small room without sounding harsh, and the vertical array in the tops gave me a useful 100 by 50 degree dispersion that reduced reflections on low-ceiling venues. The bandpass sub is efficient and punchy thanks to those two 6.5-inch woofers, so you get satisfying low-mid impact and a tight low end for backing tracks and rhythm guitar; however, you should not expect deep, extension-heavy sub-bass - the system rolls off under about 45 Hz, so for bass-heavy DJ work or large rooms you will feel its limits. Peak SPL is rated around 122 dB which is plenty for small to medium rooms, but when pushed to extreme levels the small-diameter drivers show strain compared with larger pro systems.

Portability & Setup

One of the Session4's selling points is quick setup - the tops nest neatly into dedicated cutouts in the sub for transport, and the included M20/35mm pole options let me get the tops at performance height in under a minute. The system weight is reasonable for a plywood design; the dimensions and handles on the sub made it easy for me to move it solo for short carries, and the supplied speakON cable and optional carry bag for the tops made logistics simpler on a tight schedule. In the field I appreciated that there is no lengthy assembly or complex rigging needed to get usable sound fast.

Real-World Experience

I used the Session4 for five different small-venue situations - a seated coffeehouse set, an outdoor garden party for about 40 people, a rehearsal with a small acoustic trio, a background DJ night, and a corporate presentation. In each case the system's presets and the Dynamic EQ helped me reach a good starting sound quickly, and the vocal clarity impressed listeners at the coffeehouse and the corporate event. Outdoor performance required me to push the unit harder and to accept the natural limits of 6.5-inch woofers for low-frequency energy, but for background music and small live acts it delivered clean, intelligible sound without needing an external sub. I also found the Bluetooth player handy for quick music playback between sets when I didn't want to route a laptop to the mixer.

The Trade-Offs

The biggest compromise is bass extension and headroom - the bandpass dual 6.5-inch sub is punchy but not authoritative below 50 Hz, so DJs and bass-heavy electronic acts will want additional low-end support. Also, while the array tops provide good vertical control, the small 2.75-inch drivers are optimized for clarity rather than sheer SPL, so the Session4 will struggle to rival full-sized two-way pro tops at festival-level volumes. Finally, while the plywood build is a plus for durability, it does make the system a bit heavier than equivalent plastic enclosures, so long carries will still be a consideration.

Final Verdict

Overall, I found the Proel Session4 to be a smartly engineered compact 2.1 PA for solo performers, acoustic groups, and mobile entertainers who prioritize portability, quick setup, and natural midrange clarity. I would recommend it to singer-songwriters, small bands, venues that need an installable but non-intrusive PA, and anyone who wants a rugged, DSP-equipped small-system solution; those who need deep sub-bass or very high-SPL club performance should plan to complement it with a larger sub or look at bigger full-range systems.