The 2020 Chevrolet C8 Corvette’s Doors Are Designed To Work Like Bass Boxes
Bose came up with a neat trick hereby Tudor Rus, on
Sure, we’re in awe every time we hear a V-8 rumbling through a quad exhaust setup. So are you. Heck, it doesn’t even have to be a V-8, knowing that a proper straight-six engine can deliver a delightful note. And don’t get us started on V-10s. But do you know what is also a magnificent goosebump-raiser for us? A properly-designed sound system. No, not one that sends fake engine sounds into the cabin. One that complements the engine note and delivers an acoustic performance that matches what’s under the hood. Or under the mid-section, as it’s the case with the C8 Corvette. Which, by the way, packs a Bose sound system that you won’t find in any other car.
The partnership between Bose and the Chevrolet Corvette dates back to the early 1980s
The first Chevrolet Corvette to sport a Bose sound setup was the C4. And that’s not a coincidence. The Corvette C4 was a large step away from the C3 (which still bore the Zora Arkus-Duntov design seal) and offered an evolution in terms of looks and underpinnings, with a lot of emphasis falling on the car’s modern soul. The Delco/Bose “Gold” 2oo-watt sound system came as an option for the 1990 Corvette ZR1 and packed six speakers.
For the 2020 Corvette, however, Bose is offering its all-new Performance Series sound system. The company says it worked closely with Chevy engineers to address the change in paradigm dictated by a mid-engine layout. Apparently, the cabin’s acoustic features are also dramatically influenced by such a switch, therefore, a given sound system has to be tuned and set up accordingly. To better understand why the setup found inside the 2020 Corvette C8 is unique, know that up until this point, Bose has been offering the Performance Series setup exclusively for the Infiniti QX50, Q50, and Q60, but not in the format that it developed for the C8.
The Bose Sound System Found Inside the Corvette C8 Has 14 Speakers
The Corvette C8 has the most speakers Bose has ever placed in a two-seater: 14. The setup is optional for the 2020 Corvette and comes to improve on the standard Bose 10-speaker setup every C8 will offer. Coming back to that interests us most, Bose says that the 14 speakers are “precisely placed inside the cabin.”
We know, that doesn’t say much, but we can tell you where each one is placed. For example, there are two neodymium Twindler speakers (2.5- and 3.25-inch, respectively) inserted into the instrument panel. Moreover, each upper door area comprises a 4-inch wide-range speaker and a 1-inch tweeter. But the real tour de force happens in the rear of the cabin, where the sound system employs two 5.25-inch wide-range speakers and three 3.25-inch Twiddlers, with bass being provided by 10-inch Nd woofers hidden in each door. But here’s the beauty of it: conventional setups need a bass box with woofers inside, however, with the lack of space inside the 2020 Corvette, Bose had to come up with a solution.
And it did: the car’s doors act as massive bass enclosures. Pretty neat, huh? Yet, there’s more. The woofers are not covered by your simpleton speaker grilles - instead, Chevrolet came up with a smooth, padded-like surface that covers the whole interior door panel.
With that out of the way, Chevrolet and Bose need to find a way to isolate the V-8’s roar from the cabin when the driver wants to listen to his or her favorite tunes. In that regard, the AudioPilot technology was tweaked to reduce the effects of external sound via cabin-placed microphones that monitor cockpit noise levels and then hand over the info to an algorithm that automatically adjusts the music signal.
|Type:||LT2 6.2L V8 VVT with direct injection and Active Fuel Management (cylinder deactivation)|
|Bore & stroke (in / mm):||4.06 x 3.62 / 103.25 x 92|
|Block Material:||A319-T7 cast aluminum with cast-in iron cylinder liners and nodular main bearing caps|
|Oiling System:||Dry sump-type (7.5-qt. capacity); includes oil-spray piston cooling|
|Oil Type:||Dexos 2 0W40 synthetic|
|Cylinder Head Material:||319-T7 cast aluminum|
|Combustion Chamber volume:||59cc|
|Valvetrain:||Overhead valve, two valves per cylinder; dual-equal variable valve timing.|
|Valve Size (in / mm):||2.13 / 54 hollow (intake) & 1.59 / 40.4 sodium filled (exhaust)|
|Fuel Delivery:||Direct injection with Active Fuel Management: Max pressure: 2,175 psi (15 Mpa / 150 bar)|
|Firing Order:||1-8-7-2-6-5-4-3 (all cylinders); 1-7-6-4 (with deactivation)|
|Throttle body:||87mm single bore (electronic)|
|ECU:||GM E99 (32-bit processing)|
|Horsepower (hp / kW @ rpm):||SAE-certified to 495 / 369 @ 6450 rpm (with performance exhaust)|
|Torque (lb.-ft./ Nm @ rpm):||SAE-certified to 470 / 637 @ 5150 rpm (with performance exhaust)|
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