Gold Note PSU-1250 Power Supply for Series 1000, Black

The Gold Note PSU-1250 is the brand’s most powerful external power supply for the Series 1000, feeding units such as the CD-1000 MkII, the P-1000 MkII or the PH-1000 via seven transformers and seven low-noise voltage regulators.

In the DS-1000 EVO TRIO, Gold Note also pairs it with the DS-1000 EVO streaming DAC. This version has a front panel in black anodised, brushed aluminium, weighs 21 kilos and is as wide as the units it powers.

Why the PSU-1250?

Anyone who has arrived at the Series 1000 usually already has power on their radar. The PSU-1250 separates the supply completely from the unit: transformers for the power stage, galvanic isolation of the audio stage and a dual-choke inductive filter on the analogue section. A switch on the front lets you invert the absolute phase. The dynamic power reserve exceeds 300 watts – a remarkably confident figure for a power supply that doesn’t drive a single loudspeaker.

What you hear

Gold Note speaks of ultra-clean power free of EMI and RFI interference. For the combination of PH-1000 and PSU-1250, the manufacturer describes more dynamics and stability. In concrete terms: big orchestral passages stay orderly, transients arrive with more punch and the soundstage feels more firmly anchored – even at high levels.

Who is the PSU-1250 for?

For anyone who owns or is planning a Series 1000 unit and wants to get the maximum out of this line. Bottom line: This is not a power supply for other manufacturers’ units, nor a substitute for a sound basic set-up. If you are torn between the PSU-1000 and the PSU-1250: the smaller sibling offers the same basic concept with five instead of seven transformers – just right for many systems.

Our verdict

The PSU-1250 is the ultimate expansion for the Series 1000 – not a must-buy, but the most consistent path. Let’s talk about your chain: HD Zürisee in Wädenswil advises you by phone, email or WhatsApp on whether the step up to the PSU-1250 is worth it or the PSU-1000 is enough.

Technical data

• Type: external inductive power supply (Dual Choke) for the Gold Note Series 1000
• Suitable for: Series 1000 units, e.g. CD-1000 MkII, P-1000 MkII, PH-1000; paired with the DS-1000 EVO in the DS-1000 EVO TRIO
• Transformers: 7 (power stage, galvanic isolation of the audio stage, dual-choke inductive filter)
• Voltage regulators: 7 low-noise regulators
• Phase switching: absolute phase, selectable on the front
• Maximum output voltage variation: 0.05%
• Line noise rejection: > 80 dB
• Common mode noise rejection: > 80 dB
• Full power response time: < 2.5 µs
• Mains voltage: 100–120 V / 220–240 V, auto sensing, 50/60 Hz
• Power consumption: 100 W
• Dynamic power: > 300 W
• Standby consumption: 1 W
• Fuse: 3.15 A F
• Connection cable to the unit: 1 m
• Dimensions (W × H × D): 430 × 135 × 360 mm
• Weight: 21 kg net (27 kg boxed)
• Finish: Black, anodised aluminium, brushed

Frequently asked questions

Which Gold Note units does the PSU-1250 power?

The PSU-1250 is built for the Series 1000. Gold Note explicitly names the CD-1000 MkII, P-1000 MkII and PH-1000; in the DS-1000 EVO TRIO the manufacturer also pairs it with the DS-1000 EVO. For Series 5 and 10 units there are dedicated, smaller power supplies such as the PSX-5.2, PSU-10 or PSU-10 EVO.

How do the PSU-1250 and PSU-1000 differ?

Both share the chassis, dual-choke filter and phase switching. The PSU-1250 works with seven transformers and seven voltage regulators instead of five each, offers more than 300 instead of more than 200 watts of dynamic power and weighs 21 instead of 20 kilos. It is the more uncompromising choice, the PSU-1000 the more sensible one.

Why buy the Gold Note PSU-1250 at HD Zürisee?

Because a power supply of this class is part of a system, not a standalone component. We know the Gold Note Series 1000, plan the right combination of source, preamp and power supply with you, and deliver and install it at your home on request. On top of that you get the proper warranty handling of an authorised dealer.

Goes well with

For the Series 1000 and its surroundings: CD players, preamplifiers, phono preamplifiers and mains filters & power conditioning.