HardLabs

2.1-sound system

Royaldeadshot·2.1-sound-system·PCB/amplifier.kicad_pcb

2.1-sound system PCB layout, top view — open source board by Royaldeadshot

About the 2.1-sound system PCB

2.1-sound system is an open source PCB design by Royaldeadshot, published on GitHub. It is a 4-layer board measuring 102.7 × 112.3 mm, with 122 components from 37 distinct parts.

Other key parts include the TPA3255DDVR. By type, the board carries 71 capacitors, 18 resistors, 11 connectors, 10 inductors, 3 battery holders and 2 ICs.

It belongs with the audio designs in this gallery.

From the project

a 2.1 channel 900 watt sound system made by me

This project is a custom-built 3-way audio system designed from scratch, including the amplifier, crossover network, and speaker configuration. The goal was to create a solid, practical setup that delivers good sound without overcomplicating the design.

- Subwoofer: 10" DVC (handles low frequencies) - Tower Speakers (x2): - 2 × Woofers (connected in series → 8Ω) - 1 × Midrange driver (4Ω) - 1 × Tweeter (4Ω)

2.1-sound system, from the project README
From the project README

Main components on the 2.1-sound system

TPA3255DDVR

2.1-sound system bill of materials (BOM)

122 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
TPA3255DDVR
U1, U2
1
+48V GND
J1
2
+12V
J3, J13
2
Reset Switch
J4, J19
2
Fault
J5, J20
2
Clip OTW
J6, J22
1
+48V GND
J7
1
AudioPlug4
J17
1
Left
BT1
1
GND
BT2
1
Right
BT3
1
Audio Ground
GND1
2
+ -
Left_SPK1, Right_SPK1
1
+ -
SUB_SPK1
1
SW_Slide_DPDT
SW1
1
10k Pot
Volume1
1
10k
sub1
4
3.3
FB1, FB2, FB3, FB4
6
10µH
L1, L2, L3, L4, L5, L6
12
1uF
C1, C2, C3, C4, C26, C27, C28, C29 +4
Show 17 more
QtyPartRefs
4
2200uF
C5, C6, C70, C76
12
100nF
C7, C8, C9, C10, C11, C21, C40, C44 +4
2
470uF
C12, C39
6
1uF
C14, C19, C20, C53, C54, C64
8
10uF
C15, C16, C17, C18, C38, C48, C49, C66
8
33nF
C22, C23, C24, C25, C41, C42, C65, C67
6
1nF
C30, C31, C32, C33, C47, C51
6
10nF
C34, C35, C36, C37, C45, C52
4
470nF
C46, C50, C55, C57
2
100pF
C58, C59
1
270nF
C77
2
22k
R1, R10
4
30k
R2, R7, R11, R12
6
3.3
R3, R4, R5, R6, R8, R9
2
470ohm
R13, R14
2
4.7k
R15, R16
2
10k
R17, R18

2.1-sound system design files

The KiCad project lives in the Royaldeadshot/2.1-sound-system repository on GitHub; these links point at the commit this page was built from.

2.1-sound system: common questions

How big is the 2.1-sound system PCB?

The 2.1-sound system measures 102.7 × 112.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the 2.1-sound system?

122 components, from 37 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 2.1-sound system design files?

From the Royaldeadshot/2.1-sound-system repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the 2.1-sound system design in my own project?

The repository has no license, so all rights stay with Royaldeadshot. Use it as a reference, and ask the author before reusing the design.

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