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Performance Optimized · Datasheet

Performance Optimized Wedge Ported 10" Enclosure Ampere Audio AA-2.0 10 · Single 10" Ported enclosure

Net volume
1.25 Cubic Feet
Tuning
35.5 Hz
Max mounting depth
5.610 Inches (Ampere Audio Spec)
Cutout
9.130 Inches (Ampere Audio Spec)
External dimensions
30.00 Inches W × 13.50 Inches H × 9.25 Inches / 14.16 Inches D
Front baffle
Vertical Baffle - Driver Fires Rearward Into The Trunk
Buy at Audio IntensityFactory-direct, ships from Tullahoma
Ampere Audio AA-2.0 10Buy at Audio Intensity
  • Alignment: 1.25 cu ft net vented at 35.5 Hz. F3 30.4 Hz anechoic, 2.24 dB passband ripple
  • Driver: Ampere Audio AA-2.0 10 D2/D4, 500 W RMS, 14.0 mm Xmax, 36.00 Hz Fs
  • Build: Rear-firing wedge, 20 degree rear rake, V-groove and dado joinery, triangular side-exit slot port with a 1/2" rounded mouth, double 1.5" baffle, side-mounted terminal cup
  • Cabinet: 30.00" W x 13.50" H x 14.16" D at base tapering to 9.25" D at top, 18.4 sq in port, ships dry

Spec of record

Technical specifications

SeriesProline X Performance Optimized Wedge
Driver-Specific FitmentAmpere Audio AA-2.0 10 D2/D4 (Dual 2 Ohm or Dual 4 Ohm)
Enclosure TypePorted | Rear-Firing Trunk Wedge
Baffle ConfigurationVertical Baffle - Driver Fires Rearward Into The Trunk
Wedge Angle20 Degrees On The Rear (Seat-Side) Panel
External Width30.00 Inches
External Height13.50 Inches
Top Depth9.25 Inches
Base Depth14.16 Inches
Internal Volume (Gross)1.66 Cubic Feet
Internal Volume (Net After Displacement)1.25 Cubic Feet
Port TypeTriangular Slot | Bottom-Rear Corner | Straight, No Bend | Side Exit
Port GeometryIsosceles, 6.25 Inch Legs, 18.4 Square Inches, 24.61 Inches Long, Side Mouth
Port Tuning (Fb)35.5 Hz
Port MouthTriangle Through Side A, 1/2 In Roundover On All Three Edges, 29.5 Square Inches At The Face
Port ThroatOpen Far End, 3.64 In Gap To Side B, 3/8 In Roundover On The Panel End
Port Air Velocity22.0 m/s In The Channel, 13.7 m/s At The Flared Mouth (17.0 m/s Chuff Threshold)
Predicted F330.4 Hz (Anechoic)
Passband Ripple2.24 dB (Anechoic)
Subsonic Filter28 Hz High-Pass, 24 dB/Octave - REQUIRED On A Vented Enclosure
Driver Fs36.00 Hz
Driver Qts0.510
Driver Qes / Qms0.590 / 5.049
Driver Vas19.000 Liters / 0.671 Cubic Feet
Driver Sd326.3 Square Centimeters
Driver Mms155.50 g
Driver BL13.94
Driver Re3.8 Ohm
Driver Xmax14mm (One-Way at None)
Excursion Design BasisDerated To 14.0mm For Alignment - Ampere Audio Publishes At None
Driver Displacement0.07 Cubic Feet (Published by Ampere Audio)
Driver Sensitivity83.1 dB
Driver Power Handling500 Watts RMS
Driver Overall Diameter10.280 Inches (Ampere Audio Spec)
Mounting Depth Required5.610 Inches (Ampere Audio Spec)
Cutout Diameter9.130 Inches (Ampere Audio Spec)
MaterialLangboard Elite 3/4" MDF
ConstructionShopSabre CNC / Two Windowed C Braces At The Third Points, Seated On The Port Panel
JoineryV-Groove and Dado (CNC-Cut)
Front Baffle ConstructionDouble-Layer 1.5" MDF | Cosmetic Front Layer Routed For The Acrylic Insert
Mounting HardwareThreaded Inserts At Every Mounting Location | Stainless Steel Machine Screws Included
Voice Coil ConfigurationDual 2 Ohm
Terminal CupProline X ABS/Carbon Fiber Composite | Side Mounted, Opposite The Port | 12g OFC Pre-Wired
DampingNone - Ships Dry. Polyfill Detunes A Ported Enclosure
Recommended Power350-500 Watts RMS (Ampere Audio Rated: 500W RMS)
Carpet FinishPlush Black
Shipping Weight53 lb
Bundle OptionsEnclosure Only (Bring Your Own Ampere Audio AA-2.0 10)
Warranty1-Year Limited (Enclosure)
ManufacturedTullahoma, Tennessee, USA

Modelled response

Performance in this enclosure

Net airspace
1.25
cu ft
Tuning
35.5
Hz · Fb
Half power
30.4
Hz · F3, anechoic
Xmax at
1323
W RMS · 28 Hz subsonic
With NO filter
295
W RMS · unfiltered
Port
13.7
m/s at the mouth

01Is this driver right for a ported box?

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

EBP = Fs ÷ Qes = 61.0
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 EBP 61.0
Ampere Audio AA-2.0 10 D2 · EBP 61.0
Between 50 and 100 a driver takes either load, and the choice becomes one of priorities rather than of physics. The Ampere Audio AA-2.0 10 D2 reads 61.0. Ported buys output and low-end reach around tuning; sealed buys a shallower rolloff below it. This cabinet takes the first trade.

02What the box does to it

1.25 cu ft net against a 19.0 L Vas, vented at 35.5 Hz.

Fb = 35.5 Hz  ·  F3 = 30.4 Hz  ·  passband ripple 2.24 dB
20 30 50 70 100 150 200 +4 0 −4 −8 −12 −16 −20 −24 −28 −32 FREQUENCY · Hz LEVEL · dB −3 dB Fb 35.5
Ampere Audio AA-2.0 10 D2 · Fb 35.5 Hz, F3 30.4 Hz
Anechoic, before any cabin gain, with the 28 Hz subsonic filter already applied. The vent takes over below 36 Hz and the cone stops doing the work there, which is what holds travel down at the bottom of the passband.

03Ported vs Sealed

No sealed comparison is shown for this driver.

A ported-versus-sealed chart is only worth reading against a sealed box someone would actually build: the one we make for the driver, or the one its maker recommends. Neither exists for the Ampere Audio AA-2.0 10 D2 — we do not build a sealed enclosure for it and Ampere publish no sealed volume for it — so rather than compare this cabinet against itself stuffed and sealed, a box no one would build, the comparison is left out.

04The 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 Ampere's published 14.0 mm. The two traces are the same cabinet with the subsonic filter switched on and switched off.

PXmax = 1323 W with a 28 Hz subsonic  ·  295 W with none  →  the filter is worth 4.5×
20 30 50 70 100 150 200 0 4 8 12 16 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 14.0 mm 1323 W reaches Xmax here
1323 W · subsonic at 28 Hz, 24 dB/oct295 W · no subsonic filterXmax 14.0 mm one-way, published
Each trace touches the limit and no further, because each is drawn at the exact power that puts the cone on 14.0 mm. With a 28 Hz subsonic that takes 1323 W, reached first at 27 Hz. Take the filter away and the same cabinet reaches 14.0 mm on 295 W — the filter is worth 4.5× the safe power. A vent unloads the cone below tuning, so there is nothing holding it once the box stops loading: on a sealed build a subsonic filter is an improvement, here it is required equipment. The unfiltered trace is still rising where this chart stops at 20 Hz, so treat 295 W as a bound rather than a floor. Every wattage on this page is a MECHANICAL limit, not an electrical one. It is the power at which the cone runs out of linear travel in this cabinet, and nothing more. What the voice coil can dissipate as heat is a separate ceiling set by the driver, not by the box — Ampere rate this one at 500 W RMS, and that is the number that binds first here: heat stops you before travel does, so treat 500 W as the ceiling and the travel figures above as headroom. Final wired impedance, amplifier output and how long you hold the level are all electrical questions this graph does not answer.

From the shop floor

Installer's take

AA-2.0 10 in the ported wedge: 1.25 cubic feet at 35.5 Hz, 30.4 Hz anechoic.

The port mouth runs about 14 m/s at full power, well clear of chuffing.

Ampere print no bolt circle, so a threaded insert kit ships in the box. The figures are solved on Ampere's dual 2 ohm row. The dual 4 ohm version shares the frame, cutout and mounting depth and fits the same cabinet; its own table reads a touch higher in Q (Qts 0.56 against 0.51), so it sits a little fuller near tuning in this box.

Rated 500 W RMS by Ampere. It ships dry, no polyfill in a ported box, and set the subsonic filter near 30 Hz.

Before you order

Questions

Why is this enclosure tuned to 35.5 Hz?

Sealed, the AA-2.0 10 builds well: our wedge holds 1.03 cubic feet at Qtc 0.66 to 0.76 with half power at 45 to 50 Hz. Vented, the same driver reaches 30.4 Hz. The port runs 22.0 m/s in the channel and 13.7 at the mouth at the 500 W design power, and the cone peaks at 8.6 of its 14 mm. Passband ripple is 2.2 dB and the in-car spread from 25 to 60 Hz 5.2 dB. Tuning is chosen for in-car response rather than an anechoic curve: a vehicle adds roughly 12 dB per octave below about 45 Hz. In this cabinet that lands at 5.2 dB of in-car spread across 25 to 60 Hz.

Why the 20 degree wedge, and why rear-firing?

The raked face is the seat side. A factory rear seat back leans about 20 degrees off vertical, so the cabinet sits flat against it and uses floor a square box wastes. The baffle stays vertical and fires rearward into the trunk, which acts as the acoustic extension into the cabin. This one is 14.16 inches deep at the base and 9.25 at the top, 30.00 wide and 13.5 tall.

Do I need a subsonic filter?

Yes, at 28 Hz, 24 dB per octave. Below tuning a vented box stops loading the cone and excursion runs away toward DC. With the filter in place this cabinet puts the Ampere Audio AA-2.0 10 at 61 percent of its usable travel at full rated power; without it there is no meaningful number to quote.

How much power can I run, and at what impedance?

Ampere Audio rate the AA-2.0 10 at 500 W RMS and that is the thermal ceiling. The Performance Graphs tab shows the mechanical limit, the power at which the cone reaches the end of its travel in this cabinet: here the cone sits at 61 percent of usable travel at the rating, so heat is what stops you, not travel. A D2 coil is 4 ohms in series or 1 ohm in parallel; run series unless the amplifier is rated for 1 ohm. A D4 is 8 series or 2 parallel.

Would a sealed box be better for me?

Not one we can show you. We do not build a sealed enclosure for the Ampere Audio AA-2.0 10 and Ampere Audio publish no sealed volume for it, so the Performance Graphs tab carries no ported-versus-sealed chart: the only sealed box left to plot would be this cabinet stuffed and sealed, which nobody would build, and a comparison against it would tell you nothing you could buy. What a vented box gives up is the region below tuning, where the cone unloads and the 28 Hz subsonic filter takes over; around 35.5 Hz the vent carries the load and cone travel drops to its minimum, which no sealed alignment can do.

How does the side port work?

It is a triangular slot in the bottom-rear corner: the floor and the raked back wall are two sides, one bevelled panel is the third. It runs across the cabinet, opens into the box through a 3.64 inch gap at the far end and exits through the side panel as the same triangle. Straight, no bend: 24.61 inches of path and 18.4 square inches of channel running at 22.0 metres per second, 54 percent of its turbulence limit. The three mouth edges are rounded over at 1/2 inch, so the opening at the face is 29.5 square inches and the air leaves it at 13.7 metres per second against the 17.0 threshold where a slot port starts to chuff; the panel's throat end is rounded at 3/8 inch for the same reason. The terminal cup is on the other side.

Does this enclosure ship with polyfill?

No, and do not add any. Every sealed Proline X enclosure ships with polyfill; a ported one must not, because damping changes the effective volume the port is tuned against. The port here is cut to 24.61 inches for 35.5 Hz. Stuff it and you move the tuning without shortening the port.

Is the AA-2.0 10 included?

No. This is an enclosure only, cut for the Ampere Audio AA-2.0 10 specifically: the 9.130 inch cutout, the 5.610 inch mounting depth allowance and the 1.25 cubic foot alignment all come from Ampere Audio's published parameters. It fits both coil versions (D2 and D4), and the cabinet was checked against both. Bring your own driver.

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