Siglent SPD1305X
#1 in Single outputFull review
A quiet, precise single-output linear supply for electronics benches that want PC control and remote sense. Less power per dollar than a switcher, but far cleaner output.
Amazon $328$328
The Siglent SPD1305X rates 4.0 among single output bench power supplys; the B&K Precision 1671A rates 2.0 among multi-output ones. The Siglent SPD1305X costs $41.53 less ($328 vs $369.53).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
B&K Precision 1671A
#9 in Multi-outputFull review
A basic bench supply with fixed logic rails, for classrooms and service benches that do not need PC control.
Amazon $369.53$369.53
Scores side by side
These two sit in different type classes (single output and multi-output), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Siglent SPD1305X | B&K Precision 1671A |
|---|---|---|
| Overall rating | 4.0/5 | 2.0/5 |
| Value 25% | 24 $2.19 per watt ($328, 150 W rated) | 22 $2.33 per watt ($369.53, 158.5 W from the channel ratings) |
| Output quality 20% | 96 0.3 mVrms ripple and noise | 33 5 mVrms ripple and noise |
| Resolution 15% | 75 1 mV / 1 mA setting resolution | 0 100 mV / 10 mA readback resolution |
| PC control 15% | 100 USB, LAN with SCPI | 0 no PC interface |
| Protection & features 10% | 40 remote sense, stored setups | 30 over-voltage protection |
| Warranty 15% | 100 3-year warranty | 0 1-year warranty |
Specifications
| Siglent SPD1305X | B&K Precision 1671A | |
|---|---|---|
| Output | ||
| Type | Power supply | Power supply |
| Regulation | Linear | - |
| Channels | 1 | 3 |
| Channel ratings | 30 V/5 A | 30 V/5 A, 12 V/0.5 A fixed, 5 V/0.5 A fixed |
| Max voltage | 30 V | 30 V |
| Max current | 5 A | 5 A |
| Rated power | 150 W | 158.5 W (channels added) |
| Ripple and noise | 0.3 mVrms / 3 mVp-p | 5 mVrms |
| Precision | ||
| Setting resolution | 1 mV / 1 mA | - |
| Readback resolution | 1 mV / 1 mA | 100 mV / 10 mA |
| Remote sense | Yes | - |
| Control | ||
| PC interfaces | USB, LAN | None |
| SCPI | Yes | - |
| Stored setups | 5 | - |
| Over-voltage protection | - | Yes |
| Build | ||
| Weight | 12.1 lb | 14.3 lb |
| Warranty | 3 years | 1 year |