All three are small Class D amplifiers with an integrated DSP and all three are on eBay right now. The difference is not power or features — it is how many channels each can legally drive into the Leaf's 2 Ω drivers, and whether the subwoofer needs a second box. Graded in the order the constraints actually bite.
Eight channels all rated 2 Ω, a genuinely differential input stage to 32 V, four DSP RCA outs and a remote-out for a sub amp. The only one of the three that covers the whole car, sub included, without a second box.
Buys the buildSix amplified channels at 125 W / 2 Ω each, six balanced preamp inputs, two preamp outputs. That is exactly enough for an active front, two rears and a sub feed — with zero spare channels and a sub amp to buy.
Best priceChannels 1–4 are 3 Ω-stable and not bridgeable, so the four 2 Ω doors must sit on the four 80 W channels and the sub exits via a 2 V line out. Works — if the tweeters measure 3 Ω or more.
ConditionalEverything below is graded against these five facts, taken from the Leaf's own wiring diagrams and the physical install:
| Constraint | Detail |
|---|---|
| Four balanced inputs | M100 pins 2–5 and 11–14 are Pre+ / Pre− pairs — a differential, low-level feed, not speaker-level and not single-ended RCA. |
| Seven discrete channels | The Bose amp actively crosses the 1" A-pillar tweeters separately from the 6.5" doors, so a faithful rebuild needs 4 front channels, 2 rear and a sub. |
| 2 Ω door drivers | Bose door drivers are 2 Ω; the sub is lower still. Any channel asked to drive them must be 2 Ω stable. |
| No cutting | Signal arrives on the three OEM amp plugs (B11 / B20 / B27); nothing upstream may be cut or spliced. |
| Tight real estate | The Bose amp hangs on the sub enclosure behind the right rear trim; the replacement has to fit that quarter or the hatch floor well. |
| Requirement | ARC Blackbird | AudioControl D-6.1200 | Mosconi Pico V2 |
|---|---|---|---|
| Balanced / differential input | Pass Eight balanced differential RCA inputs, switchable 0.5 / 2 / 8 / 32 V. |
Pass Six balanced preamp inputs, 250 mV–8 V RMS, plus 8 speaker-level inputs at 3–40 V for plan B. |
Verify Eight analog inputs, 2–30 V, high/low switchable; a BTL auto-on mode implies it can read a differential pair, but the input topology is not stated. |
| Amplified channel count | 8 + 4 pre Eight amplified plus four DSP RCA outputs. |
6 + 2 pre Six amplified plus two assignable preamp outputs. Exactly enough, no spare. |
8 + 2 line Eight amplified plus two 2 V line outputs. |
| 2 Ω on every channel | Pass 125 W × 8 at 2 Ω, continuous, all channels driven. |
Pass 200 W × 6 at 2 Ω; 400 W bridged into 4 Ω. |
Fails CH1–4 Channels 1–4 are 3 Ω stable and not bridgeable; only CH5, 6, 9, 10 are 2 Ω. |
| Active 2-way front | Pass Six of eight channels used; two spare. |
Pass, no spare Four front + two rear consumes all six. Nothing left for a centre or a second sub. |
Only if tweeters ≥ 3 Ω Tweeters have to live on CH1–4. |
| Subwoofer | Pass Four DSP RCA outs (8 V) plus REM OUT — or bridge a pair for 250 W and skip the extra amp. |
Line out, amp needed Two assignable preamp outputs (8.5 V) feed a sub amp. Bridging for a sub would cost two of the six speaker channels, so it is not an option here. |
Line out only Two 2 V outputs (DSP CH7/8). |
| Time alignment | Pass 30 ms output delay, 0.01 ms steps; 11.04 ms on inputs. |
Pass Input and output delay per channel — AudioControl does not publish the range. |
Partial Input delay 0–3 ms published; output delay not stated. |
| Crossover depth | Deep AP/HP/LP/BP, 6–48 dB/oct, Butterworth · LR · Bessel · variable-Q · Chebyshev. |
Simple Linkwitz-Riley 12 or 24 dB/oct only. |
Good Flexible slopes, 10-channel routing, sum/subtract mixer. |
| Physical fit | 263×145×52 mm 2.0 L — the PS8-50 footprint. Fits the hatch well. |
305×203×54 mm 3.3 L, cast aluminium — the biggest of the three by a wide margin. |
150×160×46 mm 1.1 L, all connections on one edge. |
| Price as found | $1,034.60 used, free shipping · new $1,478 |
$510 + $12.66 used, with the AC-BT24 module · new $1,049 |
$800 OBO used, $12.72 shipping · new $1,759.99 |
Why it fits this car. Three things line up that rarely do at once. The input stage is designed for OEM differential feeds and rated to 32 V, so the Leaf's balanced pre-outs plug straight in with no converter and no gain worry. All eight channels are rated at 2 Ω into 125 W, which is more than the stock drivers will ever need and means the channel plan never has to contort around impedance. And the four DSP RCA outputs plus REM OUT exist specifically so a bigger sub amp can be added later without giving up an amplified channel — ARC's own documentation names that exact use case.
Where the depth is. Per-output parametric EQ, five crossover families up to 48 dB/oct, independent input and output delay, and a mixer that routes any input to any of twelve outputs unpaired. The limit will be your measurement mic, not the DSP.
The channel arithmetic is the whole story. Six amplified channels covers the Leaf exactly once: front-left tweeter, front-left door, front-right tweeter, front-right door, rear-left, rear-right. There is no seventh channel, so the subwoofer leaves the building through one of the two assignable preamp outputs into a separate mono amp. That is a clean, standard architecture — it is simply the same shape as the Blackbird, minus the sub amplifier.
Where it beats the Blackbird. Price, decisively: $510 with the Bluetooth module versus $1,035, and the list price is lower too. More power per channel (125 W @ 4 Ω against 75 W) and 200 W into 2 Ω, so the stock drivers get even more headroom. It also has the best-documented balanced preamp input of the three — AudioControl states the six preamp inputs are balanced outright, and the eight speaker-level inputs at 3–40 V are a genuine fallback if you ever move the tap point.
Where it loses. Crossover work is Linkwitz-Riley only, 12 or 24 dB/oct, against the Blackbird's five families to 48 dB — fine for this car, limiting if you later run a steep tweeter high-pass. EQ is a 30-band graphic rather than per-output parametric, so notching a cabin resonance is approximate. Two preamp outputs instead of four. And it is the largest box here by 60 % over the Blackbird, which matters in a Leaf's rear quarter.
The Pico is a two-tier amplifier wearing one heatsink. The first four channels are 50 W, 3 Ω-stable, and cannot be bridged. The other four are 80 W, 2 Ω stable and bridgeable in pairs. On a car with 4 Ω components that is a sensible split. On this car, with four 2 Ω door drivers, it dictates everything:
The only legal plan for the Leaf is: front-left, front-right, rear-left, rear-right doors on CH5, 6, 9, 10 (all 2 Ω-stable), the two tweeters on CH1 and CH2 — but only if they measure 3 Ω or more — and the sub off the CH7/8 line out into a separate amplifier, because bridging 5+6 would suck up half the channels that can drive the doors.
What it does better. It is a third of the Blackbird's volume and a third of the D-6.1200's, it is a 2024 design with a 912 MHz DSP core and a transducerless PWM output stage, and Mosconi's noise-floor claim is backed by a measurable THD+N figure. Its mixer can subtract as well as sum, which is the right tool for cancelling a shared centre or a differential pair. All connections on one edge makes it easier to dress behind a trim panel.
What it costs you here. An external sub amp is mandatory, so the "cheap compact" option is $800 + $400–800 = $1,200–1,600 and two boxes, against the Blackbird's $1,035 with the sub on a bridged pair — and against the D-6.1200's $510 plus a mono, which is cheaper still. The impedance split also means the system architecture is decided by the amplifier rather than by the car.
| Speaker | Blackbird (8 ch) | D-6.1200 (6 ch) | Pico V2 (8 ch) |
|---|---|---|---|
| FL tweeter | CH1 · 75 W | CH1 · 125 W | CH1 · 50 W, needs ≥ 3 Ω |
| FL door | CH2 · 125 W @ 2 Ω | CH2 · 200 W @ 2 Ω | CH5 · 80 W @ 2 Ω |
| FR tweeter | CH3 · 75 W | CH3 · 125 W | CH2 · 50 W, needs ≥ 3 Ω |
| FR door | CH4 · 125 W @ 2 Ω | CH4 · 200 W @ 2 Ω | CH6 · 80 W @ 2 Ω |
| RL / RR doors | CH5–6 · 125 W each | CH5–6 · 200 W each | CH9–10 · 80 W each |
| Sub | CH7–8 bridged (250 W) or RCA → sub amp | Preamp out → sub amp only | Line out → sub amp only |
| Spare | 2 amplified + 2 pre-out | none | CH3–4 (3 Ω) |
Gains get set for the drivers, not the amplifier: the Bose door units will not thank you for 200 W. The headroom exists so the amp never clips on transients.
| Aspect | Blackbird | D-6.1200 | Pico V2 |
|---|---|---|---|
| Software | ARC DNA (Windows) — PS8-Pro platform, tab per function | DM Smart DSP (Mac/PC, iOS, Android) — matrix view with input/output RTA | Mosconi GUI over USB-C |
| EQ | 37 parametric bands per output | 30-band graphic | 30-band per output + 3 × 9-band input |
| Presets / remote | 4 presets · PSC or LR1 knob | ACR-3 knob with preset recall (optional) | RTC.2 rotary remote |
| OEM hooks | Maestro AR, BTLD turn-on, nav/voice mixing | GTO signal sense, MILC clip detect, AccuBASS | BTL auto-on, Class SB inputs, BT+ (app/CAN/streaming) |
| Digital in | Optical S/PDIF + BTD Bluetooth | Option Port + AC-BT24 Bluetooth streamer | Optical + coax + BT+ |
The car's DC-DC converter is rated around 1.7 kW / 135 A, and the auxiliary battery is small. All three are efficient Class D and modest by subwoofer-amp standards, but the same rules apply: 4 AWG with a fuse at the battery, ground to the same chassis point as the sub amp, and don't listen with the car off.
| Figure | Blackbird | D-6.1200 | Pico V2 |
|---|---|---|---|
| Fusing | 3 × 30 A (90 A) | 3 × 40 A (120 A) | Not published in the sources checked |
| Rated output | ≈ 1,000 W into 2 Ω | 1,200 W total (200 W × 6 @ 2 Ω) | ≈ 600 W total |
| Operating range | 6–17 V, start-stop rated to 4.5 V | 12 V nominal, 4–0 AWG terminals | 12 V model required (18 V / 24 V versions exist) |
New is $1,478. Everything the car needs in one box.
New is $1,049. Add a mono amp for the sub.
New is $1,759.99. Smallest, but sub amp and 3 Ω tweeters required.
The Blackbird is still the correct purchase if you want one box. It is the only one of the three that drives four 2 Ω doors and two tweeters with channels to spare, takes the Leaf's balanced pre-outs on a purpose-built differential stage, and can either bridge a pair for a 250 W sub or hand four RCA outputs to a bigger one later. At $1,034.60 shipped it costs less than either alternative plus the sub amp it forces you to buy.
The D-6.1200 is the value play, and it is closer than the price gap suggests. Six channels at 125 W / 2 Ω is exactly the Leaf's speaker count, the six preamp inputs are explicitly balanced, and $510 with the Bluetooth module is less than half the Blackbird. You pay for it with a mandatory sub amp, zero spare channels, a simpler crossover section and a chassis 60 % larger — and if you were planning a separate sub amp anyway, it is the sensible buy.
The Pico V2 remains the one that needs a measurement before it needs money. Smaller, newer, quieter, with the smartest mixer — but its 3 Ω channel split collides with the Leaf's 2 Ω drivers, and it only makes sense if you are replacing the front stage with 4 Ω components at the same time.