ELECTRICAL POWER CHART

Electrical system + battery check + box rise — Livin' Loud tools

Section 1 · System demand

Your setup

System voltage (charging)

Battery chemistry (for capacity math) Rated battery bank (Ah) — total

Alternator continuous rating

How you’re using it

Load mode Peak current draw (amps)

Example: ~5000W RMS is often 300–400A electrical at 14.4V depending on amp efficiency.

Ambient / underhood temperature

System reality check

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Alt available

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Avg current

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Peak electrical W

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Usable Ah

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Batt runtime

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Alt headroom

Section 2 · Can this battery take that peak?

Battery selector

Pick a known pack or go custom

Custom Ah Continuous C-rate Burst / peak C-rate (short)

Battery vs your peak load

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Pack Ah

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Cont. amps

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Burst amps

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Your peak need

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Verdict

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Burst margin

Preset reference (manufacturer claims / typical published)

Battery	Chem	Ah	Cont. C / A	Burst C / A	Notes
XS Team Titan TT-30	LTO	30	~15–20C / 450–600A	~30C / ~900A	Claimed 15–20kW · charge max listed 900A
XS Team Titan TT-60	LTO	60	~15–20C / 900–1200A	~30C / ~1800A	Claimed ~30kW class
XS Team Titan TT-90	LTO	90	~15–20C / 1350–1800A	~30C / ~2700A	Claimed 45–60kW · charge max listed 2700A
Down4Sound LTO 6.0	LTO	6	20C / 120A daily	40C / 240A	3–5kW class depending on alternator
Limitless Cyber 12K	Li class	~38	~8–12C class	Higher burst	~10–14kW depending on alternator
Yinlong 6S (6×40Ah)	LTO	40	6C / 240A	10C / 400A	Cell data: 240A cont, 400A peak (~10s)
XS D3100 Group 31	AGM 12V	127	~2.2C / ~280A	Max listed 5000A	~4kW primary / 5kW secondary claim
XS D3400 Group 34	AGM 12V	80	~2.5C / ~200A	Max listed 3300A	~2.5–4kW class claim
XS XP3000	AGM 12V	120	~2C / ~240A	Max listed 3000A	Secondary reserve AGM
XS XP2500	AGM 12V	100	~2C / ~200A	Max listed 2500A	Secondary reserve AGM

C-rate × Ah = amps. A 40Ah pack at 10C burst = 400A for a short hit.
Manufacturer “supports X watts” numbers assume the alternator is also feeding the system.
Team Titan C numbers use published charge-max / wattage claims as a high-rate proxy. Continuous is usually lower than absolute pulse max.
AGM “max amps” are short-burst marketing numbers. Continuous C for AGM is much lower (~2–3C) if you want the battery to live.
Picking a battery in Section 2 fills Ah + chemistry in Section 1 and recalculates runtime / headroom. Top-only edits leave Section 2 alone until you pick again.

What the top numbers mean

Alternator available = continuous rating after temperature derate.
Avg current = peak × duty cycle.
Alt headroom = alt available − average draw. Green = alt mostly covering it.
LTO = high-C + safety. LiFePO4 = big usable capacity. Lead/AGM ≈ 50–55% usable.
16V ≈ +11% electrical watts vs 14.4V at the same current.

Section 3 · Box Rise Calculator

Sub + enclosure

Subwoofer preset

Fs (Hz) Qts Vas (ft³) Re (ohms) Rated RMS (W)

Number of subs Final load at amp (ohms)

Box

Net airspace Vb (ft³) — total for all subs Port tune Fb (Hz) Total port area (in²)

Amplifier power into the box

Input power (RMS watts) — defaults from sub rating

When you pick a sub, this fills from rated RMS × quantity. Change it to model a different amp.

Box reaction + watts by frequency

T/S + airspace + tune → how the box should behave, then estimated electrical watts after impedance rise and low-freq cooling.

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Alignment feel

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Vb / Vas

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Fb vs Fs

Freq	Est. watts