Neptune: parts list and costings

Drivers
 
Audax HM210Z0 World Audio 2 £130
Audax HM100Z0 World Audio 2 £72
Scan-Speak D2905/9300 Wilmslow Audio 2 £108
Subtotal     £310

Cabinets and connections
 
Silver-plated OFC cable Maplin 1m £5
High-current OFC cable Maplin 2m £7.20
Single terminal plate Maplin 2 £12
Double terminal plate Maplin 2 £16
6.5mm PVC pipe B&Q 3m £5
18mm MDF B&Q 3m2 £20
6mm MDF B&Q 2m2 £10
4mm plywood B&Q 1m2 £5
6mm plywood B&Q 1m2 £8
21x21mm pine battens B&Q 6m £7
1.5mm birch ply  Solent Models Limited 1m2 £25
T-nuts Portswood Hardware 40 £8
10mm carpet underlay  Carpet Depot 2m2 £16
Deflex  South Coast Speakers 600cm2 £20
Dedshete  Les Smith 20 sheets £12
8mm spikes  South Coast Speakers 8 £12
Long-haired wool Wilmslow Audio 1kg £8
Fine hairnets Boots 6 £2
Code 5 lead flashing B&Q 12kg £18
Miscellaneous glues  B&Q   £30
Cherry Veneer Totton Timber 5m2 £100
Hide glue Totton Timber 1kg £8
Subtotal     £322
Grilles
 
12mm MDF B&Q 1m2 £6
Grille Cloth Maplin 1.5m £6
Grille fasteners Wilmslow Audio 16 £4
Subtotal     £16

Active crossover:
 
80VA 18-0-18V toroid Maplin 2 £15
10000uF F 35V electrolytics Maplin 4 £23
OP-27 Maplin 8 £24
RC4227 Maplin 8 £32
47n 5% polystyrene cap Maplin 4 £2.60
22n 1% polystyrene cap Maplin 16 £7.80
10n 1% polystyrene cap Maplin 16 £7.20
5n6 1% polystyrene cap Maplin 16 £7.80
Dual CP potentiometer Maplin 3 £18
Phono sockets Maplin 8 £16
PCB Maplin   £5
Enclosure     £12
Various bits Maplin   £20
Subtotal     £182

Passive crossover
 
Matrix board Maplin 1 £3
Binding posts Maplin 16 £9
Polypropylene 0.1 uF Maplin 2 £3.40
Various resistors Maplin 2 £1.20
Supersound 1uF Wilmslow Audio 2 £4.90
Supersound 2.2uF Wilmslow Audio 2 £5.50
Supersound 3.3uF Wilmslow Audio 2 £6.24
4.7uF polypropylene Maplin 2 £6.00
Supersound 5uF Wilmslow Audio 2 £7.60
Supersound 6uF Wilmslow Audio 2 £8.50
Supersound 10uF Wilmslow Audio 2 £11.80
Reversolytic 66uF Wilmslow Audio 2 £4.40
0.15mH ferrite inductor Wilmslow Audio 2 £3.20
0.3mH ferrite inductor Wilmslow Audio 2 £3.60
0.6mH ferrite inductor Wilmslow Audio 2 £4.00
0.8mH ferrite inductor Wilmslow Audio 2 £4.20
1.0mH ferrite inductor Wilmslow Audio 2 £4.80
2.0mH ferrite inductor Wilmslow Audio 2 £5.50
6mm MDF B&Q 1m2 £3
Cherry veneer Totton Timber 0.75m2 £12
Various hardware & wire Maplin   £20
Subtotal     £131
 

Grand total £780 (excluding active crossover)

Grand total £960 (including active crossover)