Car audio subwoofer enclosure with two visible subwoofers on a white background

Black double-stacked car audio subwoofer enclosure with foam padding on a white background

Black car audio subwoofer enclosure with visible components on a white background

Black audio subwoofer with a decorative element on a white background

Close-up of a car speaker with a focus on the cone and frame.

Close-up of a car audio subwoofer enclosure with wiring and connectors.

Proline X

Proline X Micro Series Dual 12" Sealed Enclosure | Built for ResoNix GUS-12

Q: Does this enclosure include the ResoNix GUS-12 subwoofers?

No. This is an enclosure-only product. Both ResoNix GUS-12 drivers must be purchased separately from ResoNix Sound Solutions. The enclosure ships with the Proline X terminal cup pre-wired to both driver positions, 8/32 threaded inserts and stainless machine screws for both drivers, polyfill pre-installed in both chambers independently, and rubber feet for downfiring installation.

Q: The listing shows 1.60 cu ft. Is that the volume each driver sees?

No. 1.60 cubic feet is the total gross volume across both chambers. Each chamber is 0.80 cubic feet gross. The GUS-12 has a driver displacement of 0.047 cubic feet. After installation, each driver sees 0.75 cubic feet of net acoustic airspace, which is exactly ResoNix's published 0.707 Qtc target. The 1.60 cu ft figure is the total gross enclosure volume. The acoustically meaningful figure is 0.75 cu ft per driver.103

Q: How does the dual GUS-12 system sound in a vehicle cabin?

Both GUS-12 drivers at 0.707 Qtc produce a flat anechoic response with deep low-frequency extension well below 20 Hz. In a real vehicle cabin, boundary gain below 80 Hz reinforces the drivers' deep extension in the listening position. Running two GUS-12s doubles the cone displacement, producing roughly 3 dB more low-frequency output than a single GUS-12 at equivalent power, with the largest audible gains below 30 Hz where cone displacement is the dominant output variable. The acoustic character is the same as the single build: precise, flat, extended, and low-distortion. Two drivers produce more output while preserving the SQ-oriented character the GUS-12 was designed for.

Q: What amplifier does this system require?

Each GUS-12 is rated at 800 watts RMS for a combined rating of 1,600 watts RMS. Target a monoblock delivering 1,200–1,600 watts RMS at your final load impedance. For the recommended 2Ω configuration (two D2 drivers, each series, then parallel), a monoblock stable at 2Ω delivering 1,200–1,600 watts RMS is the correct pairing. Do not significantly exceed 800 watts RMS per driver, the GUS-12's thermal ratings are honest and overpowering is not covered under warranty.

Q: Why does the dual GUS-12 have only one terminal cup instead of one per chamber?

A single Proline X terminal cup serves both chambers through internal wiring routed to each driver position separately. You connect one amplifier run to the terminal cup and both drivers receive signal. The wiring from the terminal to each driver position handles the internal distribution. No external splicing, Y-connectors, or separate amplifier channels are required. The final impedance at the terminal cup is determined by how the four voice coils across both drivers are wired internally.

Q: How does the dual GUS-12 compare to the single GUS-12 build?

Both builds use the same GUS-12 driver in the same 0.75 cubic foot net acoustic volume per driver. The dual build delivers double the cone displacement and double the combined power handling, 1,600 watts RMS vs 800 watts RMS. Output increases significantly across all bass frequencies, particularly below 30 Hz where cone displacement is the dominant variable. The tonal character, flat 0.707 Qtc alignment requiring active DSP, is identical. If the single GUS-12 provides sufficient output for your application, it is the simpler build. If you need more output and have the available enclosure footprint, the dual build delivers it without changing anything about the acoustic alignment.

Q: Where is this enclosure built?

Every Proline X enclosure is CNC-cut and hand-assembled in Tullahoma, Tennessee on ShopSabre CNC routers. Langboard Elite MDF is used throughout. Chamber volume, divider placement, cutout geometry, dado joint depth, baffle layer count, dowel placement, and terminal positioning are all held to spec on every unit. Proline X is the enclosure brand owned and manufactured by Audio Intensity.151

SKU: M12D-S Gus

QUICK SPECS

Best For: High-output SQ builds: trunk floors, SUV cargo, maximum GUS-12 output at 7.5" depth
Power: 1,600W RMS combined (800W RMS per ResoNix GUS-12)
Topology/Class: Sealed / Dual Chamber / Double-Layer Stack Fab / Dowel Reinforced / Front-Fire or Downfire
Sonic Character: Ultra-low distortion, maximum extension. Dual Klippel-verified GUS-12 performance at 0.707 Qtc per chamber

Shipping Included Shipping is included on orders to the lower 48. No freight charges at checkout. Alaska, Hawaii, and international orders are quoted live rates at checkout.

USA Built Handcrafted in Tennessee

Advanced Terminal Cup Built in-house. ABS/Carbon Fiber. Stainless steel hardware.

$ 349.99

Financing available. Choose Shop Pay Installments at checkout.

Hurry! Only 4 left in stock.

Build Your System

Wavtech Link1500.1plus Amplifier - Compact 1500W Monoblock - Wavtech Amplifier for car audio systems

Wavtech Wavtech Link1500.1plus Amplifier - Compact 1500W Monoblock $ 699.99

Proline X Micro Series Dual 12" Sealed Enclosure | Built for ResoNix GUS-12

$ 349.99

INSTALLER'S TAKE

The dual GUS-12 build is a straightforward extension of the single GUS-12: same driver, same enclosure volume target per chamber, same 0.707 Qtc alignment character, double the cone displacement and double the power handling. If you understand the single GUS-12 build, you understand this one. The only material differences are the impedance wiring complexity with two dual-voice-coil drivers and the structural demands of running 1,600 watts RMS combined across two high-excursion 12" drivers in a 7.5-inch-deep enclosure.

The volume math is identical to the single build. ResoNix's 0.707 Qtc target for the GUS-12 is 0.75 cubic feet of net acoustic airspace. Driver displacement is 0.047 cubic feet. Gross chamber volume is 0.75 + 0.047 = 0.797, so each chamber is built to 0.80 cubic feet gross. After each driver is installed, each driver sees 0.75 cubic feet of net acoustic airspace. Exactly what ResoNix specifies. Total gross volume is 1.60 cubic feet across both chambers. Total net acoustic volume is 1.50 cubic feet. The 1.60 figure listed is gross, the 0.75 figure per chamber is what acoustically matters.

The acoustic alignment carries forward from the single build without change. Qts of 0.28 and Fs of 14.54 Hz on both drivers produce the same 0.707 Qtc alignment in each chamber. The dual build produces significantly more output below 30 Hz where 15 inches of cone travel across 490.87 cm² of cone area from each driver adds up. The tonal character is the same as the single GUS-12: flat, extended, low-distortion response engineered for accuracy.

Wiring is the most important pre-order decision with this build. The GUS-12 is a dual voice coil driver, so each driver has two voice coils that must be wired before the two drivers are connected in the final system configuration. The practical recommendation is two D2 drivers, each wired series (producing 4Ω per driver), then both drivers wired in parallel at the terminal cup (producing 2Ω final). This gives you a 2Ω load with manageable voltage and current demands on the amplifier. Two D4 drivers wired parallel per driver (2Ω each), then both drivers in series (4Ω final) is the safest load for amplifier longevity. Work out your target impedance and amplifier selection before choosing the D2 or D4 variant. Changing voice coil configuration after the drivers are mounted is not practical.

At 1,600 watts RMS, both GUS-12 drivers are running at the ceiling of their rated power. A monoblock delivering 1,200–1,600 watts RMS at your final load impedance is the practical target. Run clean, unclipped power. The GUS-12's thermal limits are the ceiling and the ratings are honest. Overpowering these drivers is not covered under ResoNix's warranty.

Overview

Micro Series | Dual GUS-12 | Enclosure Only

Dual GUS-12. 1.60 cu ft Total.
0.75 cu ft Acoustic Per Driver: ResoNix's Optimum.

Two ResoNix GUS-12 drivers. Two acoustically isolated sealed chambers. Each chamber delivers 0.80 cubic feet gross, which after the GUS-12's 0.047 cubic foot driver displacement equals exactly 0.75 cubic feet of net acoustic airspace per driver. ResoNix's published 0.707 Qtc target. In 7.5 inches of total depth. 1,600 watts RMS combined. The most technically demanding dual-driver build in the Micro Series.

1.60 Cu Ft Net Total

0.75 Cu Ft Acoustic Per Driver

7.5" Total Depth

1,600W Combined RMS Rating

Enclosure only. ResoNix GUS-12 subwoofers are not included and must be purchased separately from ResoNix Sound Solutions. Both the D2 and D4 variants fit this enclosure. Select the impedance variant that matches your amplifier's stable load before ordering.

0.80 cu ft Per Chamber: 0.75 cu ft Acoustic After Displacement

ResoNix recommends 0.75 cubic feet of net acoustic airspace per GUS-12 for 0.707 Qtc. The GUS-12 has a published driver displacement of 0.047 cubic feet. Building each chamber to a gross volume of 0.75 cubic feet and then installing the driver would leave only 0.703 cubic feet of acoustic airspace. Below the recommendation. The correct gross build volume is 0.75 + 0.047 = 0.797 cubic feet per chamber.

Each chamber in the M12D-S GUS is built to deliver 0.80 cubic feet gross: after the GUS-12 is installed, each driver sees 0.75 cubic feet of net acoustic airspace, exactly matching ResoNix's published optimum. Total net acoustic volume across both chambers is 1.50 cubic feet. Total gross enclosure volume is 1.60 cubic feet. The listed 1.60 cu ft is the gross figure: the acoustic figure that matters for each driver is 0.75 cu ft per chamber.

Two GUS-12 Drivers: More Output, Same Alignment Character

The GUS-12's Qts of 0.28 and Fs of 14.54 Hz define both its performance ceiling and its operating requirements. A single GUS-12 in the correct enclosure produces flat anechoic response extending well below 20 Hz, but at 800 watts RMS and a single 12" cone, output in large vehicle cabins or competitive environments has a ceiling. Two GUS-12 drivers in isolated 0.75 cubic foot chambers double the cone displacement and the combined power handling to 1,600 watts RMS, while each driver still operates in exactly the enclosure volume it requires.

The acoustic character from the single GUS-12 build carries forward here. Both drivers have Qts of 0.28, and the system Qtc in each chamber targets 0.707: flat anechoic response with the deep low-frequency extension the driver's motor and suspension are engineered to deliver. Two drivers make that response roughly 3 dB louder at all bass frequencies. They do not change its character. The dual GUS-12 delivers more output than any other shallow 12" build in this depth class.

1,600W Combined: Construction Built to Match

The front baffle is a double-layer stack-fab build, two CNC-cut Langboard Elite MDF panels bonded to 1.5 inches total. The stack-fab assembly is reinforced with dowels throughout, adding mechanical alignment and shear resistance at every panel joint beyond what layer adhesion alone provides. At 1,600 watts RMS combined across two GUS-12 drivers, this is the correct structural standard, not overbuilt relative to the application.

The chamber divider is CNC-cut to full wall thickness and stacked to the same standard as the exterior panels. It is a structural element with the same rigidity and acoustic seal quality as any wall in the enclosure. Each chamber is independently sealed. Neither driver's acoustic loading affects the other.

Impedance Wiring: Know Before You Order

1Ω

Two GUS-12 D2 (Dual 2Ω) each wired parallel Single 1Ω, then both in parallel 0.5Ω. Not recommended. Most amplifiers cannot operate at this load. Wire D2 coils in series for 4Ω per driver, then parallel for 2Ω final instead.

2Ω

Two GUS-12 D4 (Dual 4Ω) each wired parallel 2Ω per driver, then both in parallel 1Ω. OR two GUS-12 D2 each wired series 4Ω per driver, then both in parallel 2Ω. The D2 series/parallel at 2Ω is the recommended configuration for most builds.

4Ω

Two GUS-12 D4 (Dual 4Ω) each wired parallel 2Ω per driver, then both in series 4Ω final. Safest electrical configuration. Broadest amplifier compatibility. Requires strong 4Ω monoblock output to hit the power ceiling these drivers need.

Volume

0.75 cu ft Acoustic Per Driver: ResoNix's 0.707 Qtc Target

Each chamber is built to 0.80 cu ft gross. After the GUS-12's 0.047 cu ft displacement, each driver sees 0.75 cu ft of net acoustic airspace: exactly what ResoNix publishes for 0.707 Qtc. Both chambers are identical. Both drivers load correctly.

Output

1,600W RMS Combined: Dual Klippel-Verified Xmax

Two GUS-12 drivers at 800W RMS each with 20.69mm Klippel-verified Xmax per driver. Combined cone displacement doubles the output potential of the single GUS-12 build across the entire bass frequency range. Particularly below 30 Hz where cone displacement is the dominant output variable.

Chambers

Dual Chamber, CNC Divider, Stack-Fabbed to Full Wall Thickness, Independently Sealed

A CNC-cut, stack-fabbed chamber divider separates both driver volumes completely. Neither GUS-12 shares airspace with the other. Each driver loads into its own sealed 0.80 cu ft chamber, correct acoustic alignment on both sides, independently maintained.

Baffle

1.5" Double-Layer: Dowel Reinforced Stack Fab

Two bonded layers of Langboard Elite 3/4" MDF at 1.5 inches total. Dowels reinforce the stack-fab assembly throughout. At 1,600 watts RMS combined, baffle resonance and panel flex are structural failure modes. This construction eliminates both.

Mounting

8/32 Threaded Inserts: Machine Screws for Both Drivers

Both baffle positions are fitted with 8/32 threaded inserts. Stainless machine screws are included for both GUS-12 drivers. Each driver mounts to steel, consistent clamping force, no stripping, clean reinstallation at any service interval.

Wiring

Single Proline X Terminal Cup: Pre-Wired to Both Drivers

One Proline X ABS/carbon fiber terminal cup with stainless hardware and copper ring terminals serves the entire enclosure. Pre-wired internally with 12-gauge OFC to both driver positions. One amplifier run. Both drivers fed.

Alignment

Same 0.707 Qtc Character as the Single GUS-12

Both GUS-12 drivers have Qts of 0.28, Fs of 14.54 Hz. The system Qtc in each chamber targets 0.707: flat anechoic response with deep extension. The dual build produces roughly 3 dB more low-frequency output than a single GUS-12 at equivalent power.

Reinforcement

Dowel-Reinforced Stack Fab, 1,600W Structural Standard

Dowels throughout the stack-fab assembly add mechanical alignment and shear resistance at panel joints independent of adhesive condition. Combined with stack-fab construction and adhesive: three independent mechanical systems locking every joint against the sustained load of 1,600 watts RMS across two GUS-12 drivers.

Ready to Mount. Ready to Wire. Built for Active Systems.

The M12D-S GUS ships fully prepped. The Proline X terminal cup is installed and pre-wired with 12-gauge OFC to both driver positions. Connect your amplifier run and wiring is complete. Both baffles use 8/32 threaded inserts with stainless machine screws included. Polyfill is factory-installed in both chambers independently. Rubber feet for downfiring are included.

Plan Your Wiring Before Selecting the Voice Coil Variant

The GUS-12 is available in Dual 2Ω (D2) and Dual 4Ω (D4) configurations. With two drivers, the wiring combinations produce multiple final impedance options. The most practical configuration for most builds is two D2 drivers, each wired series (4Ω per driver), then both in parallel (2Ω final). Broadest amplifier compatibility at a manageable load. See the impedance chart above and confirm your amplifier's stable impedance before ordering the driver variant.

Where It Fits

At 40" × 14.75" × 7.5", this enclosure is designed for applications where a single GUS-12 is not enough output and a conventional dual 12" sealed build is too deep. Measure carefully. 40" wide at 7.5" deep covers most full-size sedan trunks and SUV cargo floors:

Trunk floor: full-size sedans and sport sedans
Cargo floor: mid-size and full-size SUVs
Behind-seat: full-size crew cab trucks
Under rear bench: full-size vans and SUVs
SQ competition builds: maximum GUS-12 output at minimal depth
High-output systems: where distortion performance matters as much as SPL

2-Year Warranty

All Proline X Micro Series enclosures carry a two-year manufacturer's warranty against defects in materials and workmanship. Built and inspected in our Tullahoma, Tennessee facility before shipment. Contact Audio Intensity directly for warranty support.

Made in Tennessee

Every Proline X Micro Series enclosure is CNC-cut and hand-assembled in Tullahoma, Tennessee on ShopSabre CNC routers. Chamber volume, divider placement, cutout geometry, baffle layer count, dowel placement, and terminal positioning are all held to spec on every unit. Langboard Elite MDF throughout: named, mill-documented, published density and bond specifications.

Specifications

Compatible Driver	ResoNix GUS-12 (D2 / D4): Quantity 2
Configuration	Dual 12": Dual Chamber Sealed
Internal Volume (Gross)	1.60 Cubic Feet Total (0.80 cu ft per chamber)
Internal Volume (Net Acoustic)	1.50 Cubic Feet Total (0.75 cu ft per driver after displacement)
Material	Langboard Elite 3/4" MDF
Construction	CNC-Cut Stack Fab / Dado Joinery / Dowel Reinforced
Front Panel Thickness	1.5 Inches (Double-Layer Stack Fab)
External Width	40 Inches
External Height	14.75 Inches
External Depth	7.5 Inches
Max Mounting Depth	4.59 Inches (116.5mm)
Woofer Opening	284.6mm Direct Fit. ResoNix GUS-12 (Both Positions)
Driver Mounting	8/32 Threaded Inserts: Stainless Machine Screws Included (Both)
Terminal Cup	Proline X ABS/Carbon Fiber, Stainless Hardware, Copper Ring Terminals, Single Cup, Pre-Wired to Both Drivers
Internal Wiring	12-Gauge OFC (Oxygen-Free Copper)
Polyfill	Pre-Installed Per Chamber
Firing Direction	Front-Firing or Downfiring
Downfire Feet	Included
Finish	Plush Black Automotive Carpet
Warranty	2 Years: Proline X / Audio Intensity
Made In	Tullahoma, Tennessee, USA

Performance Graphs

Net airspace

0.80

cu ft per chamber

System Qtc

0.65–0.70

sealed

Half power

36.7–36.9

Hz · F3

Xmax at

639

W RMS · no filter

With 25 Hz subsonic

1059

W RMS · +66%

Amplifier

800

W RMS recommended

This enclosure holds 0.80 cu ft net per chamber. In it the ResoNix GUS-12 runs a system Qtc of 0.65–0.70 with half power at 36.7–36.9 Hz, and the cone reaches its 20.0 mm travel limit at 639 W, below the driver’s 800 W thermal rating, so travel is what stops you here, not heat. Run a subsonic filter at 25 Hz and that becomes 1059 W — +421 W, or 66 percent more power for the same 20.0 mm of travel.

01Is it a sealed driver?

Efficiency bandwidth product places the motor before anything else is decided.

EBP = Fs ÷ Qes = 50.0–51.9

D2 · EBP 50.0D4 · EBP 51.9

At 50.0–51.9 the GUS-12 sits in the transition band, not the sealed band. That is not a mismatch: a transition motor works in either alignment, and sealed buys a smaller box and a gentler roll-off at the cost of some low-end output. Stage 02 shows what this airspace actually does with it.

02What the box does to it

0.80 cu ft against a 101.1 L Vas.

α = Vas ÷ Vb = 4.46 · Fc = Fs√(α+1) = 34–36 Hz · Qtc = 0.65–0.70

D2 · Qtc 0.65, Fc 34 Hz, F3 36.9 HzD4 · Qtc 0.70, Fc 36 Hz, F3 36.7 Hz

The box lifts resonance from 14.5 Hz free-air to 34–36 Hz and half power lands at 36.7–36.9 Hz, anechoic, before any cabin gain. This enclosure ships without a driver, so both coil variants the maker offers are plotted. They do not load the same box the same way.

03The watts that reach Xmax (in this enclosure)

Travel scales with the square root of power, so there is one wattage that puts the cone exactly on 20.0 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.

P_Xmax = 639–665 W unfiltered → 1059–1242 W with a 25 Hz subsonic

D2 · 665 W, no filterD4 · 639 W, no filterD2 · 1242 W with subsonic at 25 Hz, 24 dB/octD4 · 1059 W with subsonic at 25 Hz, 24 dB/octXmax 20.0 mm one-way

Every trace touches the limit and no further, because each is drawn at the exact power that puts that coil on 20.0 mm. Unfiltered that is 639 W, reached first at 20 Hz. It sits under the 800 W the driver can take thermally, so the enclosure sets the ceiling, not the voice coil. The dashed traces are the same driver behind a subsonic filter at 25 Hz, 24 dB/oct: stopping the cone wasting travel below the passband lets it take 1059 W before hitting the same 20.0 mm. That is 66 percent more amplifier for the price of one filter setting.

Param	Value	Unit	Note
Fs	14.51	Hz	free-air resonance
Qts	0.280 / 0.280		D2 / D4
Vas	101.07 / 119.35	L	equivalent compliance
Sd	490.9	cm²	effective piston area
Xmax	20	mm	one-way linear travel
Pe	800	W	continuous RMS
SPL	82.1	dB	1 W / 1 m, derived from T/S

Driver parameters as published by resonixsoundsolutions.com. Curves computed against this enclosure’s actual net airspace.

Materials

Material

Built From a Spec Sheet, Not a Sales Sheet

Every Proline X Micro Series enclosure is CNC-cut from Langboard Elite MDF, 3/4" (18mm) panels produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure, because we chose the material based on those numbers, not on price or availability.

Langboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used across the full Proline X lineup.

Specifications

Langboard Elite MDF: Published Mill Data

Property	Value	Why It Matters
Panel Stock	Langboard Elite MDF	Named, verifiable panel source, not generic "high-density MDF"
Thickness	3/4" (18mm)	Industry standard for subwoofer enclosures; panels below this flex under pressure
Density	48.5 lbs/ft³	Higher density = less porosity, better screw retention, reduced resonance
Internal Bond	200 psi	Measures resistance to delamination under sustained internal pressure. The most enclosure-relevant spec on this sheet
Modulus of Rupture (MOR)	4,200 psi	Bending strength before the panel breaks, relevant for larger unsupported baffle spans
Modulus of Elasticity (MOE)	410,000 psi	Stiffness under load; higher MOE means less panel flex under bass pressure, less resonance
Face Screw Holding	325 lbs	How firmly the panel surface holds a screw; critical for baffle joint integrity over time
Edge Screw Holding	250 lbs	Panel edge retention, relevant for every joint that isn't face-to-face

Internal Bond

200 psi: The Number That Actually Matters for Enclosures

The internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually. The symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. 200 psi internal bond is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.

Stiffness

410,000 psi MOE: Less Flex, Less Resonance

The modulus of elasticity measures panel stiffness, its resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. 410,000 psi stiffness is what keeps a Micro Series wall from moving. Every wall is a stack of CNC-cut layers rather than a single unsupported panel, with dowel reinforcement running between the layers as tension hardware. There is no wide unsupported span left to flex and no butt joint to work loose, so resonance is controlled at the structure level, not the panel level. The bass you hear comes from the driver, not the box.

Screw Holding

325 lb Face / 250 lb Edge: Joints That Stay Locked

Screw holding strength determines how firmly the panel grips a fastener at the face and at the edge. On a Micro Series enclosure the driver never threads into raw MDF. The baffle carries 8/32 threaded inserts set into its back face, so the woofer mounts on machine screws into steel threads. Face and edge screw holding still matter for everything else that fastens into the shell, including the terminal cup and the included down-fire feet. 325 lb face screw holding strength means those fasteners stay seated under vibration instead of backing out and opening an air leak.

Sourcing

Named Panel Stock: Not "Premium MDF"

The phrase "premium MDF" or "high-density MDF" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification. It is a description with no defined standard. Langboard Elite is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.