UNI4RGB vs TW15: Which Speaker Combo Fits Your Ride?
By BOSS Audio Systems | Life at Full Volume | Published: 2026-10-18
Category: Comparisons
Compare the BOSS Audio UNI4RGB package system with the TW15 tweeter upgrade. See which option fits your ride, budget, and sound goals.
Quick Answer
Choose the UNI4RGB if you want a complete 2-way system with a powered 4-channel amp and illuminated remote. Choose the TW15 if you already have speakers and need a compact, affordable tweeter upgrade.
What Each Option Brings to the Table
The UNI4RGB is a full package system: it includes a 4-channel Class A/B amplifier, a pair of 4-inch midbass drivers, and 1-inch dome tweeters, all designed to work together. That makes it a true drop-in audio solution for a 12-volt vehicle, boat, or powersports machine.
The TW15 is a single 1-inch dome tweeter with neodymium magnet and polyimide diaphragm. It's meant to be added to an existing speaker setup, not to replace it. You supply the midbass and the amplification; the TW15 handles the high frequencies.
The Trade-Off: Complete System vs Add-On Upgrade
The UNI4RGB gives you everything in one box, but it costs significantly more and requires more installation space. The TW15 is budget-friendly and flexible, but you'll need to match it with other speakers and an amp—which means extra shopping and wiring.
If you're starting from scratch, the UNI4RGB simplifies the process. If you're upgrading an existing setup, the TW15 is the lower-cost path to better highs.
Which One Should You Pick?
- Choose the UNI4RGB if...: You want a complete, matched system with amp, midbass, and tweeters in one purchase. It's a 2-way setup that's weather-resistant and includes an illuminated remote with 20 multicolor options. Check your available mounting space for the amp and speakers before ordering.
- Choose the TW15 if...: You already have decent midbass speakers and just want clearer highs. The TW15 is a single tweeter, so you'll likely need two for a stereo pair, and you'll need an amp or head unit with enough power. Plan to buy two TW15s and confirm your amp can drive them.
- Consider your installation effort...: The UNI4RGB includes a 20-foot remote cable and multiple mounting options (surface or flush), but it's a bigger install. The TW15 offers surface, flush, and swivel mounting kits, making placement more flexible. Think about where you'll mount the tweeters—swivel mounts help aim the sound.
Product Facts
- TW15: 1” (25 mm) Dome Tweeter with neodymium magnet and polyimide diaphragm. The neodymium magnet keeps the tweeter compact and light, while the polyimide diaphragm helps handle high frequencies clearly—ideal for adding sparkle to an existing system.
TW15 - UNI4RGB: 2-way system with 1” dome tweeters, 4” midbass drivers, and a 4-channel Class A/B amplifier. This all-in-one package gives you matched components and amplification, so you don't have to worry about compatibility—just install and play.
UNI4RGB
Fit Guidance
Best For
- Riders who want a complete, ready-to-install audio system with amp and speakers included
- Boat or UTV owners who value a weather-resistant setup with remote control and lighting options
Not For
- Budget-focused shoppers who already have speakers and just need high-frequency enhancement
- Those who prefer to mix and match components from different brands
