Sure Electronics PS-SP11154 24 VDC 14.6A 350W Regulated Switching Power Supply

Brand:|Model: PS-SP11154
This 24 VDC, 14.6A regulated power supply is recommended for 2 x 100 watt and 4 x 100 watt amp boards. UL recognized design.
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List Price$74.99
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Part # 320-316
  • High-current switching DC power supply
  • Regulated and adjustable DC output: 21.6 to 28.8V
  • Fan cooled, metal case, terminal block input
  • Comprehensive circuit protection and UL recognized
  • Input/output cables included
  • Switch selectable 110V/220V input

Product Details

Sure Electronics PS-SP11154 24 VDC 14.6A 350W Regulated Switching Power Supply

This beast of a power supply is ideally suited for use with DIY amplifier projects. The regulated 24 VDC, 14.6A design is capable of 350W of regulated output. Perfect for 2 x 100 watt and 4 x 100 watt amp boards, the switching frequency is fixed at 25 kHz. The cooling fan has on/off/auto control, and the compact size reduces weight.

Specifications: • Output voltage: 21.6~28.8V (adjustable), 0 to 14.6A • Input power requirements: 100~120 VAC/6.5A or 200~240 VAC/4.0A (switch selectable), 50/60 Hz • Connection: Terminal block • Efficiency: 81% • Protection: Short circuit, overload, overvoltage, over temperature • DC adjustment range: ±10% rated output voltage • Dimensions (mm): 215 L x 115 W x 50 H • UL recognized design.

Sure Electronics PS-SP11154 24 VDC 14.6A 350W Regulated Switching Power Supply
  • BrandSure Electronics
  • ModelPS-SP11154
  • Part Number320-316
  • UPC844632088162
  • Product CategoryPower Supplies
  • Unit of MeasureEA
  • Product Rating
    (7 Reviews)
  • Weight2.45 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Sure Electronics PS-SP11154 24 VDC 14.6A 350W Regulated Switching Power Supply
Sure Electronics PS-SP11154 24 VDC 14.6A 350W Regulated Switching Power Supply is rated 4.1429 out of 5 by 7.
Rated 4 out of 5 by from greatHi sir4x100W at 4 Ohm TK2050 Class-T Digital Audio Amplifier BoardHow many unit we can connect with power supply 24 VDC 14.6A 350W Regulated Switching Power SupplyThanks
Date published: 2015-04-04
Rated 5 out of 5 by from 24v D.C. SupplyI'm using this in a combo production studio and HAM shack. This is a light weight, compact unit. I haven't tested it to the full load since I only need it to power a LCD monitor that draws about 6.5 amps and while the unit gets slightly warm with that load the on board fan hasn't needed to run. I haven't detected any RFI interference with my studio equipment or AM radio. You can buy this with full confidence that there will be no issues with electrical or mechanical noise.
Date published: 2014-05-27
Rated 2 out of 5 by from Good Supply but not cleanI bought this recently to run the 2x100 Watt audio amplifier. It does the job fine, but it emits bursts of 8 MHz RF at about 15 usec intervals. I tried to use my oscilloscope to look at the amplifier output and got this 8 MHz component.  I quickly tracked it back to the supply. This would not meet FCC requirements!
Date published: 2013-12-29
Rated 5 out of 5 by from used with amplifier 2x100W @ 4 Ohm TK2050 Class-D Audio AmplifierMakes no noice and works perfectly withwith amplifier 2x100W @ 4 Ohm TK2050 Class-D Audio Amplifier
Date published: 2013-10-02
Rated 5 out of 5 by from Solid industrial grade an excellent price point for this sort of supply. The current model (the complaint you read in the reviews, above, was undoubtedly of an early model, in my humble opinion) has very good regulation when the attached amplifier(s) are driven pretty hard (meaning loud enough to wake the deaf, if not the dead). I have not done formal measurements, but the audio results at high load speak pretty well for this supply.Be aware that this model can be adjusted to deliver up to 28.5 VDC (albeit still at 350W). It is certainly capable of driving one of the 6 channel amp boards. I have experimented with building linear supplies for this class of amplifier; though I believe that a well regulated linear supply makes these boards (particularly the STM variants) sound a touch better, the difference, I feel, is not enough to justify the expense and trouble. (Powering one of the BIG boards (either the IR or the TI, which produce multiples of 150W RMS per board), is a different matter, since linear supplies for these boards work better, and in the case of the IR, cost much less than 2 50+VDC switching supplies. However, the biggies are for powering auditoriums, very large home theater setups, etc.--not your typical audiophile application.This supply works exactly as advertised, and is therefore, I believe, the preferred way to power class D amp boards of the mid power range (or a slew of low powered 24+VDC compatible boards).
Date published: 2013-01-28
Rated 5 out of 5 by from Two SureI have two Sure 4x100 amps hooked up to this power supply and it has worked great. It has a cooling fan, but I've never actually heard it run, because it doesn't get that hot. Being 14, I regularly give my home made 7.2 surround a heavy work out. The only trouble it has ever given me was when the negative wire that runs from the outlet to it slipped out.
Date published: 2012-05-17
  • 2015-12-01T06:31CST
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Product Q&A

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Sure Electronics PS-SP11154 24 VDC 14.6A 350W Regulated Switching Power Supply

Will this support 2ea Sure 4x100 amplifiers (320-335) and what would be their anticipated power out? Would it be better to have 2ea smaller power supplies, 1 for each amplifier and if so, which one?

Asked by: SteveKoratsky
Those amps will work best with one of these power supplies to each.
Answered by: MattP
Date published: 2015-10-30

I would like to use this to power 24 VDC powered motors requiring 5 amps or less. Will his unit work?

Asked by: harrison0905
Yes this will work for that application.
Answered by: MattP
Date published: 2015-05-28

What screw thread should I use to attach brackets to the side of the power supply?

Asked by: Frank142
Unfortunately we do not have thread information for the tapped holes on the power supplies. You should be able to bring one into a hardware store and find the proper fitting screws.
Answered by: MattP
Date published: 2015-05-07

What's in the box? Do I need to buy anything else? Does it include plugs/cables/wires? I'm planning to power either 2x100 TDA7498 or 2x100 TK2050 for the low frequencies in a bi-amped, active crossover with my ESS AMT Monitor 6ohm (93db) speakers. 

Asked by: 13Stoploss
This power supply is shipped with an ungrounded AC power cable as well as a 2.5 x 5.5mm DC power cable. Both have bare wire ends for connection to the power supply.
Answered by: MattP
Date published: 2015-01-05

I am a little confused how the voltage is related to the +V and -V terminals. Does it mean that +V is +24V and -V is -24V? Or is the 24V the difference and +V is +12V and -V is -12V?

Asked by: cspirou
Since this is a DC output, you will simply use one of the V+ terminals and one of the V- terminals which will provide 24 VDC. This power supply has three of each so multiple devices could potentially be powered from one power supply.
Answered by: MattP
Date published: 2014-11-26

Building a portable boombox I can use around the house. Going to use this power supply with the 2x100 amp. Wanted FM as an option and wondered how I could connect a marine stereo unit (12V) to this power supply if at all possible.

Asked by: fuzzwah7
Not recommended. You should power the radio with a separate 12vdc supply.
Answered by: TomI
Date published: 2014-10-18
  • 2015-12-01T07:10CST
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