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Preamp Card Array

Assembly

Eight identical plug-in cards, each housing a transformer-coupled low-noise preamplifier with 0–70 dB gain, pad switch, and phantom power control. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Preamp Card Array parts and their functions

8 top-level parts · 64 parts in total · full bill of materials below
Preamp Card Array parts diagram: 1 hot-swap preamp PCB, 2 input isolation transformer, 3 preamp operational amplifier, 4 gain potentiometer, 5 pad switch, 6 phantom power relay, 7 SMD passive (R/C/L), 8 connector. 64 parts in 8 top-level items.
Preamp Card Array parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Hot-Swap Preamp PCB 8× Modular preamp PCB, hot-swappable design
2 Input Isolation Transformer 8× Balanced input transformer, 1:1 isolation per channel
3 Preamp Operational Amplifier 8× Low-distortion op-amp per channel
4 Gain Potentiometer 8× 100 kΩ log-taper potentiometer per preamp
5 Pad Switch 8× Switchable -20 dB pad per channel
6 Phantom Power Relay 8× Relay switching 48 V phantom power on/off per channel
7 SMD Passive (R/C/L) 8× Capacitors, resistors for impedance and frequency response
8 Connector 8× XLR female jack per preamp card

3D model

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Build & assembly graph

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Bill of materials for Preamp Card Array

8 top-level lines · 8 rows shown · 64 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Hot-Swap Preamp PCB digital-stage-box-preamp-card 8× 8 · part
2 Input Isolation Transformer digital-stage-box-input-transformer 8× 8 · part
3 Preamp Operational Amplifier digital-stage-box-preamp-opamp 8× 8 · part
4 Gain Potentiometer digital-stage-box-gain-pot 8× 8 · part
5 Pad Switch digital-stage-box-pad-switch 8× 8 · part
6 Phantom Power Relay digital-stage-box-phantom-relay 8× 8 · part
7 SMD Passive (R/C/L) smd-passives 8× 8 · part
8 Connector connector 8× 8 · part

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Where the preamp card array is used

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

Used in 1 assembly

Digital Stage Box

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 $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks