2026 south antenna retrofit: dana + arpad dsp field, 5-hour full-sound process
When you're looking for the long end words like "the south sky" or "the sky sound" you're really not asking "the sky" but "the sky" this b-class car's original sound, modified dana or modified helix? Alpa dsp, do you want to go on? How long is the tune?" -- this one goes straight to a 13-year-old shop that's been doing 11 years of sky-refitting combat in nanton。
Car-type background: east wind, day-to-day, 2020-2025, 2. 0l / 2. 0t main vehicle type. The original car sound is the bose introductory level 6 hornet program, which has insufficient medium-high frequency density, weak sound field positioning, and lack of clarity about the level of rock/classic listening。
One, three real pains from the sky's car
Painful 1: mid-frequency collapse - original low-sound unit is a normal paper basin with insufficient density of medium-frequency voice (800hz - 2khz) - listening to zaiqing / tang lijun / chen xuan, sound "floating" without thickness
The sound field is low - the original acoustic is at the bottom of pillar a, the sound field is 20-30 cm below standard - listening to live recordings (a concert/ symphony), sound coming out of the feet, no "stage"
Pain point 3: low frequency loose - original car does not have a special bass cell, 8 inches low in the seat - listen to edm / heavy metal / megaclassic, low frequency does not dive deep
Ii. 13 the selection of the old-age shop programme (budget 15 000 / 30 000 / 50 000 three tranches)
- foreground: dana esotan 232 2nd quarter frequency (6. 5 inches low + 1 inches high) - backtrack: original car reserved - dsp: not individually matched, driven by original car host - cw: not individually matched, danna esotan 232 high sensitivity, host directs - soundproof: four stp soundproofs (stopping + inhaling double floors) - sound tune: no separate tone, preset by danna's plant eq
Scheme b . 30,000 tranches (main programme, 13 years old shop, 70% skycar owner selection)
- foreground: dana esotar2 3-minute (7 inches low + 3. 5 inches medium + 1 inches high) - backstage: morreyhot 602 axes (backseat backup) - dsp: alpha hdp-d90 (13 years old shop owner dsp, with 31 eq + active frequency + phase alignment) - flow: hacker zapco st-4x (ii) 4-hour low sound: jl audio 10w6 beam (placed in bell position, without tailbox space) - separated: four stp stp floors + backup stp stp voice: 5-hour active frequency + 31 eq + sound field positioning + audio blind measure
Option c = 50,000 (hifi, 13-year-old shop owner programme)
- foreground: dana esotar3 tricentimeter (7 inches low + 4 inches medium + 1. 1 inches high) - backstage: helix p 62c. 2 bicentrist (repeated in circles) - dsp: alpha hdp-d90 + genesis (create) dsp 2nd-level processing - flow: brax ml2 4x + brax mx4 pro single-way low sound: jl audio 12w7 lower sound (repeated trunk) - all-car stp soundproof (interception + insulation + tremors 3) - muted: 7-hour active frequency + 31 eq + relative to zi-zi-zi-zi-zi-zi-zi-zi + + secondary sound blinding
Iii. The key role of the alpa dsp in retrofitting
A lot of day-to-day car owners have gone through plan b, and they still can't hear it -- the core reason is not no horn, no dsp or no dsp。
Alpa hdp-d90 has three core functions in the sky modification:
Active frequency 1: active frequency - active distribution of high/middle/low signal in dana esotar2 - power loss savings compared to passive frequency (using sub-frequency electricity) 30% - significant increase in hearing level
Effect 2:31 eq correction - disparity in the acoustic environment of the car (large difference between driver and co-pilot) - alpa hdp-d90 can independently correct the right- and right-hand channel 31 frequency bands - after correction, the driver and co-pilot feel the same
Activity 3: soundfield position - reposition the low-pitched sound field to the top of the dashboard
Iv. 5-hour tuning full process dismantling
Five-hour tuning of skyplan b. The process is strictly seven steps:
Step 1 . Spectrum test (30 minutes) - specialized spectrum instrument + testing of wheat collect the original frequency at the driver's position - output of the deviation curve of 31 bands
Step 2 active frequency set-up (45 minutes) - official recommended frequency point according to esotar2 tri-point in dana - high-up 3,500 hz / 12db oct to high-up - bring 350-3500 hz / 12db oct to medium-low - low-through 350hz / 12db oct sound
Step 3 . Phase alignment (30 minutes) - test phase delay for each unit - compensate alignment field with time delay within dsp - error control within ±0. 5 ms
Step 4 . 31 eq calibration (60 minutes) - paragraph-by-spect test results - target curve: driving point frequency ±2db flat
Step 5 — soundfield position (45 minutes) - pull the sound field centre to the center of the dashboard with a delay - hearing: sound from the driver's seat, sound from the dashboard
Step 6 hearing blindness (45 minutes) - 5 standard test tracks (humans/sirs/class/rock/edm) - soundmaker and owner in driver position + co-pilot position cross-hearing - repeated fine-tune in unsatisfactory locations
Step 7 + sound relaying (25 mins) - redetecting frequency after sounding - retaining the owner's file (car type + modified list + tone curve) in the shop - 36 months 6 free visits by file
V. Three of the most frequently asked questions by drivers after the change
Q1 — does the modification affect the original line? A:13 the old store modified the independent line, not the original can bus, zero intrusion. The sound is removed after modification and the original vehicle is restored。
Q2 • will the modification affect the original vehicle warranty? A: three years, 100,000 kilometres of maintenance, with the conversion to an independent route (independent fuse box + independent line beam), physically isolated from the original vehicle route, without prejudice。
Q3 . Can the original acoustic be restored after modification? A: yes. All of the modified equipment (horns/dsp/channels/ bass) was installed independently, with stand-alone beams being removed and the original vehicle lines not being moved. When the owner sells the car, he can take it down, take it or change it。
At the end
The core of this b-class car is not "how expensive a horn" but "a sound-to-do with a reasonable five to seven hours." 13 an old store (sniffing) has been modified in nantung 11 years a day, major program b (30,000 tranches) has 200+ real cases, average hearing satisfaction 90%+. When the driver can't get it, he can go to the store and ask for a list of 200 real changes in the owner case。
