EMU mono headset electrical schematics:
EMU mono headset electrical schematics
P2K mono send/end schematics:
P2K mono send/end schematics
Electrical cost difference:
Electrical cost difference EMU mono headset P2k send/end mono headset
Uses 4 x more capacitors and 13 resistors - Uses less capacitors and no
($0.42) resistors ($0.07)
Uses 2 op-amps to amplify speaker and mic - no use of op-amp ($0.24) ($0)
Uses voltage regulator to convert 5V to 2.5V - no use of voltage regulator
($0.24) ($0)
BJT transistor as send-end control - RLC circuit as send end control
($0.08) ($0.11)
PCB ( doubled side SMT) - PCB (one sided SMT) ($0.11) ($0.04)
ECM Microphone - ECM microphone ($0.22) ($0.22)
Speaker - Speaker ($0.23) ($0.23)
Total costs Delta
- $1.54 - $0. 67 $0.87
Mechanicals :
Mechanicals EMU mono headset ($1.01) P2k mono send/end headset ($0.43)
plug cord (with miniUSB plug) - plug cord with audio jack 5 wire cable + shield ($0.56) 3 wire cable, no shield (0.20)
Painted ear housing - molded ear housing ($0.12) ($0.06)
Painted microphone housing - molded microphone housing Front and Back ($0.18) ($0.05)
chrome deco - chrome deco ($0.06) ($0.06)
rubber ring - rubber ring
($0.02) ($0.02)
Bushing - Bushing
($0.01) ($0.01)
Clip set - Clip set ($0.03) ($0.03)
- Microphone strain relief - Microphone strain relief ( $0.01) ($0)
Total costs Delta
- $0.99 - $0.43 $0.56
EMU mono headset mechanicals construct:
EMU mono headset mechanicals construct
P2k Mono send/end headset:
P2k Mono send/end headset
Summary of Cost comparison:
Summary of Cost comparison EMU mono headset P2K mono S/E headset
BOM $2.55 $1.10
Conv $0.75 $0.24
Price $3.30 $1.34
Opportunities
Discrete design for amplification - $0.48 savings
Painted to molded microphone housing - $0.10 savings
Conversion costs savings - $0.20
Possible target price for EMU mono headset with EDCR changes/ negotiation
= $2.52