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NORDSTRAND 3B-4B PREAMP
Non Disponibile
€240.00
Tax included
NS3B4B
3B-4b
PREWIRED - 3 band bass preamp with volume/tone stack, blend, mid (pull frequency switch), and treble/bass stack
3b preamp specs:
- Overall gain is +/- 10db by a trim pot on the circuit board.
- Bass +/- 12db @ 50Hz
- Treble +/- 12db @4khz
- Midrange +/- 12db @ 1k with no external capacitors. Add two capacitors as indicated in the table to change the frequency.
400hz is the default second frequency
|
Frequency |
200Hz |
300Hz |
400Hz |
500Hz |
600Hz |
700Hz |
800Hz |
900Hz |
1khz |
|
To outside lugs of mid pot |
68nf |
47nf |
33nf |
22nf |
15nf |
8.2nf |
5.6nf |
1.2nf |
N/A |
|
To gray leads from circuit board |
390nf |
190nf |
120nf |
82nf |
56nf |
47nf |
27nf |
12nf |
N/A |
Battery life is estimated to be around 180 hours for an alkaline 9v. Adding a battery to make it 18v will give more headroom and longer life.
NS3B4B
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