United States (US) dollar
Indian rupee
Euro
INFINITY SPEAKERS PRIMUS 6510CSHI
MRP: $136.37 Offer Price: $95.54
Infinity Primus PR6510CS delivers crisp highs and rich mid-bass with its 6.5″ Plus One™ woofer and edge-driven tweeter design. Rated at 80W RMS and 2.7Ω impedance, it offers clear, powerful sound and smooth frequency response—an ideal upgrade from factory speakers.
Description
Key Specifications
Here are the published / aggregated specs from Infinity + verified retailers:
| Spec | Value |
|---|---|
| Speaker Type | Component speaker system (2-way) |
| Woofer Size | 6½″ (160 mm) |
| Impedance | ~ 2.7 ohms autoclint+4my.infinityspeakers.com+4Crutchfield+4 |
| Sensitivity | ~ 88 dB (measured at 2.83 volts) my.infinityspeakers.com+2Crutchfield+2 |
| Frequency Response | ~ 53 Hz – 20 kHz my.infinityspeakers.com+2Crutchfield+2 |
| Power Handling (RMS)** | ~ 80 W RMS my.infinityspeakers.com+2hottracks.in+2 |
| Peak Power Handling | ~ 240-320 W depending on retailer claims autoclint+2hottracks.in+2 |
| Woofer Material | Polypropylene cone with “Plus One+” cone technology (bigger radiating area) my.infinityspeakers.com+2Crutchfield+2 |
| Surround | Hi-roll rubber surround for better woofer excursion / durability my.infinityspeakers.com+1 |
| Tweeter | Edge-driven textile (or soft) dome tweeter for highs Crutchfield+2hottracks.in+2 |
| Mounting Depth (Woofer) | ~ 2-1/16″ (~52 mm) top-mount depth Crutchfield+2hottracks.in+2 |
| Grilles Included | Yes (woofers, etc.) depending on the package/retailer. Crutchfield+2my.infinityspeakers.com+2 |
Features & Build
-
Plus One+ Woofers: The woofer cones are designed with more radiating area compared to many in the same size. The idea is more surface area = better bass / more efficient output. my.infinityspeakers.com+1
-
Edge-Driven Tweeters: The tweeter sits near the edge of the hoop/basket structure so high frequency dispersion tends to be a bit wider, smoother. Also helps reduce harshness in highs at loud volume. Crutchfield+1
-
True “4-ohm architecture”: Even though the speaker’s nominal impedance is ~2.7 ohms, the design is such that it’s supposed to allow extra power draw (from an amplifier or even a decent head unit) without overheating or distortion. The trade-off is that your amplifier or head unit must be able to safely drive lower impedance. infinity-caraudio.com.au+1
-
Durability / Reliability: Built to meet certain automotive reliability standards (temperature extremes, vibration, UV etc.). my.infinityspeakers.com+1
What to Expect in Real-World Use
Strengths
-
Better clarity and separation: having separate tweeters + crossovers allows placement and alignment that can improve imaging and crispness of highs.
-
Strong mid-bass: Given the 6½″ woofer plus high sensitivity, you will get punchy mids and decent bass for many kinds of music (rock, pop, etc.).
-
Works well with both head units and amplifiers: Because of its RMS power rating (80 W), it’s not super-high end but certainly an upgrade over stock speaker setups. If you feed it decent power, performance improves.
-
Good fit for many cars: The woofer depth is moderate (~52 mm), which helps in many factory speaker locations.
Limitations / Things to Be Mindful Of
-
The low-end (below ~50-60 Hz) will be limited: the system’s usable lower frequency limit is ~53 Hz according to specs; for deep bass (sub-heavy tracks) you’ll likely want a subwoofer.
-
Lower impedance (2.7 ohms) yields more current draw; a weak amplifier or head unit could struggle or distort if pushed too much. Also wiring quality and power/ground connections become more important.
-
Peak power handling claims (240-320 W) are short bursts; sustained high output will heat things, and performance (clarity) might drop if amplifier / source is clipping.
-
Installation: because it’s a component set, you need to mount tweeters appropriately, place crossovers, do wiring cleanly etc., which takes more effort than coaxials.
Comparison / Variants
-
There is a variant named PR6510CS (without the “HI”) in some markets; very similar specs (80 W RMS, 240 W peak, same sensitivity etc.). my.infinityspeakers.com+2Crutchfield+2
-
The “HI” suffix may imply regionally marketed or packaged differently (maybe includes different accessories, grille, or matches regional preferences). Some sellers list the peak power as 320 W for the “HI” version. autoclint+2Car Concepts Shop+2
1 review for INFINITY SPEAKERS PRIMUS 6510CSHI
INFINITY SPEAKERS PRIMUS 6510CSHI
Related products
-
-
-
-30%
-
-35%
“I love how these speakers transform my car’s sound system. Music sounds alive!”