Speek amp
JBlitzar·speek·speek-amp/PCB/speek_amp/speek_amp.kicad_pcb
About the Speek amp PCB
Speek amp is an open source PCB design by JBlitzar, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 120 × 80 mm, with 98 components from 31 distinct parts.
Other key parts include the TPA3116D2DAD, CYA0630-10UH, XT60-M., PDMTAT068125-151MLU and 50PX4700MEFC18X40. By type, the board carries 60 capacitors, 19 resistors and 18 ICs.
It belongs with the audio designs in this gallery.
From the project
speek monorepo
A modular speaker system. Right now, it has a couple of boards:
- Speek Amp: This is the flagship amplifier. It's a hybrid 2.1 design using the TPA3116D2 chip. It's built to handle 4Ω speakers. It outputs lines for a mono subwoofer, two stereo woofers, and two stereo tweeters. - Speek RX: This is a Bluetooth audio receiver. It runs off of a qfn esp32 D0WD v3 and has a built-in headphone amp, or a normal line out for chaining. - Speek PSU: This is a supporting PSU board. It has a USB-C PD trigger (for quick tests) and a barrel jack port for proper power (needed to power real flagship…

Main components on the Speek amp
Speek amp bill of materials (BOM)
98 components, 31 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TPA3116D2DAD TPA3116D2DAD_C2865736 TI(德州仪器) | HTSSOP-32_L11.0-W6.1-P0.65-LS8.1-BL | U1, U10 |
| 6 | CYA0630-10UH 10uH SHOU HAN(首韩) | IND-SMD_L7.2-W6.6_GPSR07X0 | U2, U3, U5, U6, U13, U14 |
| 1 | XT60-M. XT60 AMASS(艾迈斯) | CONN-TH_XT60 | U4 |
| 2 | PDMTAT068125-151MLU PROD(谱罗德) | IND-TH_L23.0-W12.0-P8.00-D0.8 | U7, U8 |
| 1 | 50PX4700MEFC18X40 Rubycon(红宝石) | CAP-TH_BD18.0-P7.50-D0.8-FD | U9 |
| 1 | DB301V-3.5-2P-GN-S R_Tweeter DORABO(地博电气) | CONN-TH_DB301V-3.5-2P-GN | U11 |
| 1 | DB301V-3.5-2P-GN-S R_Woofer DORABO(地博电气) | CONN-TH_DB301V-3.5-2P-GN | U12 |
| 1 | DB301V-3.5-2P-GN-S L_Tweeter DORABO(地博电气) | CONN-TH_DB301V-3.5-2P-GN | U15 |
| 1 | DB301V-3.5-2P-GN-S L_Woofer DORABO(地博电气) | CONN-TH_DB301V-3.5-2P-GN | U16 |
| 1 | DB301V-3.5-2P-GN-S L_Sub DORABO(地博电气) | CONN-TH_DB301V-3.5-2P-GN | U17 |
| 1 | DB301V-3.5-2P-GN-S J1 DORABO(地博电气) | CONN-TH_DB301V-3.5-2P-GN | U18 |
| 1 | PJ-320D SHOU HAN(首韩) | AUDIO-SMD_PJ-320D-1 | in_1 |
| 6 | CL05B104KB54PNC 100nF YAGEO(国巨) | C0402 | C1, C8, C16, C43, C54, C55 |
| 1 | CC0603KRX7R9BB104 100nF YAGEO(国巨) | C0603 | C2 |
| 2 | W312G685JS8SA1C0EC 6.8uF film WEIDY(纬迪) | CAP-TH_L29.5-W12.7-P27.00-D0.8 | C3, C36 |
| 2 | 47UF 47uF | CP_Radial_D6.3mm_P2.50mm | C4, C37 |
| 2 | 22UF 22uF | CP_Radial_D6.3mm_P2.50mm | C5, C38 |
| 8 | CL05A105KA5NQNC 1uF HRE(芯声) | C0402 | C6, C30, C31, C32, C33, C41, C42, C45 |
| 11 | 0402B102K500NT 1nF SAMSUNG(三星) | C0402 | C7, C10, C17, C26, C27, C28, C29, C56 +3 |
| 4 | 220UF 220uF | CAP-SMD_BD8.0-L8.3-W8.3-FD | C9, C15, C52, C53 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | CL05B224KO5NNNC 220nF SAMSUNG(三星) | C0402 | C11, C12, C13, C14, C48, C49, C50, C51 |
| 6 | 0603B103K500NT 10nF YAGEO(国巨) | C0603 | C18, C19, C20, C21, C22, C23 |
| 4 | 10UF 10uF | CP_Radial_D6.3mm_P2.50mm | C34, C35, C39, C40 |
| 6 | CC0805KKX7R9BB684 680nF YAGEO(国巨) | C0805 | C44, C46, C47, C60, C61, C70 |
| 8 | RC0402FR-073R3L 3.3 YAGEO(国巨) | R0402 | R1, R6, R7, R8, R9, R13, R18, R19 |
| 4 | 0402WGF1003TCE 100k YAGEO(国巨) | R0402 | R2, R5, R14, R15 |
| 3 | 0402WGF1002TCE 10k YAGEO(国巨) | R0402 | R3, R4, R20 |
| 1 | 0805W8F5601T5E 5.6k UNI-ROYAL(厚声) | R0805 | R10 |
| 1 | RT0603BRD073K2L 3.2k YAGEO(国巨) | R0603 | R11 |
| 1 | 0603WAF4702T5E 47k FOJAN(富捷) | R0603 | R12 |
| 1 | 0603WAF7502T5E 75k UNI-ROYAL(厚声) | R0603 | R21 |
Speek amp design files
The KiCad project lives in the JBlitzar/speek repository on GitHub; these links point at the commit this page was built from.
Speek amp: common questions
How big is the Speek amp PCB?
The Speek amp measures 120 × 80 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Speek amp?
98 components, from 31 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Speek amp design files?
From the JBlitzar/speek repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Speek amp design in my own project?
Yes, under the terms of its GPL-3.0 license, which JBlitzar chose for the repository.
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