Enclosure not stated
Bass Preamp
- Category
- Preamp / Amp-in-a-box
- Price
- €7.25in stock
From the vendor
The bass preamp allows to shape the final sound to a very deep degree. Full bass / middle / treble / gain equalization and additional bright / notch / deep filters allow achieving both jazz selectivity and crushing rock sound. The system is available in two versions, standard and extended with DI XLR output, enabling connection directly to the mixer or audio interface.
PCB. Dimensions 95mm x 55mm.
Files to download:
•
BASS PREAMP ENG.pdf
•
BASS PREAMP DI ENG.pdf
Schematic
The schematic is in the vendor's build document, page 1. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 60 rows
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| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 23 | ||||
| R7 | 1k | 1k | ||
| R11 | 1k8 | 1.8k | ||
| R5 | 3k3 | 3.3k | ||
| R13 | 3k6 | 3.6k | ||
| R19 | 3k6 | 3.6k | ||
| R20 | 3k6 | 3.6k | ||
| R18 | 6k2 | 6.2k | ||
| R6 | 10k | 10k | ||
| R8 | 10k | 10k | ||
| R10 | 10k | 10k | ||
| R12 | 10k | 10k | ||
| R14 | 10k | 10k | ||
| R16 | 13k | 13k | ||
| R17 | 13k | 13k | ||
| R27 | 22k | 22k | ||
| R21 | 33k | 33k | ||
| R2 | 68k | 68k | ||
| R24 | 100k | 100k | ||
| R26 | 100k | 100k | ||
| R29 | 100k | 100k | ||
| R4 | 270k | 270k | ||
| R3 | 750k | 750k | ||
| R1 | 1M | 1M | ||
| Capacitors 26 | ||||
| C8 | 1u | 1u | ||
| C29 | 1u | 1u | ||
| C4 | 2u2 | 2.2u | ||
| C14 | 2u2 | 2.2u | ||
| C7 | 10u | 10u | ||
| C21 | 10u | 10u | ||
| C23 | 10u | 10u | ||
| C30 | 10u | 10u | ||
| C32 | 10u | 10u | ||
| C28 | 47u | 47u | ||
| C1 | 47p | 47p | ||
| C17 | 1n5 | 1.5n | ||
| C20 | 3n3 | 3.3n | ||
| C18 | 4n7 | 4.7n | ||
| C19 | 6n8 | 6.8n | ||
| C2 | 10n | 10n | ||
| C3 | 10n | 10n | ||
| C31 | 10n | 10n | ||
| C33 | 10n | 10n | ||
| C10 | 15n | 15n | ||
| C11 | 22n | 22n | ||
| C12 | 22n | 22n | ||
| C13 | 22n | 22n | ||
| C9 | 47n | 47n | ||
| C15 | 150n | 150n | ||
| C16 | 150n | 150n | ||
| Diodes 1 | ||||
| D1 | 1N400X | 1N400X | ||
| ICs 5 | ||||
| U1 | Tl072 | TL072 | ||
| U2 | Tl072 | TL072 | ||
| U3 | Tl072 | TL072 | ||
| U4 | Tl072 | TL072 | ||
| U6 | ICL7660S | ICL7660S | ||
| Potentiometers 5 | ||||
| RV5 | B50k | B50k | ||
| RV1 | A100k | A100k | ||
| RV2 | B25k | B25k | ||
| RV3 | B25k | B25k | ||
| RV4 | B500k | B500k | ||