Mixer and Effects Board

Assembly

Green Printed Circuit Board and Components.JPG · Commons ↗ Report photo

The circuit that amplifies the microphones, blends them with the music, and applies echo, reverb, and key shift.

Direct parts	6
Total parts	7
Used in	1 assembly
Class	Assembly

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The circuit that amplifies the microphones, blends them with the music, and applies echo, reverb, and key shift. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Mixer and Effects Board parts and their functions

6 top-level parts · 7 parts in total · full bill of materials below

Mixer and Effects Board parts diagram: 1 microphone preamp, 2 effects DSP, 3 vocal cut circuit, 4 microcontroller, 5 bare PCB, 6 SMD passive (R/C/L). 7 parts in 6 top-level items. — Mixer and Effects Board parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Microphone Preamp	2×	One per mic input
2	Effects DSP	1×	Echo, reverb, key control
3	Vocal Cut Circuit	1×	Center-channel vocal reducer
4	Microcontroller	1×	Control and mode logic
5	Bare PCB	1×	Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
6	SMD Passive (R/C/L)	1×	Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.

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Build & assembly graph

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Bill of materials for Mixer and Effects Board

6 top-level lines · 6 rows shown · 7 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Microphone Preamp	karaoke-machine-mic-preamp	2×	2	·	part
2	Effects DSP	karaoke-machine-effects-dsp	1×	1	·	part
3	Vocal Cut Circuit	karaoke-machine-vocal-cut	1×	1	·	part
4	Microcontroller	mcu	1×	1	·	part
5	Bare PCB	pcb-bare	1×	1	·	part
6	SMD Passive (R/C/L)	smd-passives	1×	1	·	part

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Where the mixer and effects board is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Audio & Video 1 Karaoke Machine

Used in 1 assembly

Karaoke Machine

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$200. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳JLCPCB jlcpcb.com ↗	Shenzhen, CN	PCB fabrication	100 pcs	2–4 wks
🇨🇳PCBWay pcbway.com ↗	Shenzhen, CN	PCB fab & assembly	100 pcs	2–4 wks
🇨🇳Shennan Circuits scc.com.cn ↗	Shenzhen, CN	PCB manufacturer	100 pcs	2–4 wks
🇮🇳Shogini Technoarts shogini.com ↗	Mumbai, IN	PCB manufacturer	100 pcs	2–4 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	100 pcs	2–4 wks