Integrated Power Supply Designs

LC-500 REBORN

NEW! LC-500 capacitor kit is reborn. LC-500 mod boasts 36,000uF/100V of modern capacitor performance. They have excellent performance in the large Adcom, B&K and Hafler amps. It is 2.5 dia x 5.5” high. Screws and misc hardware included.  LC-500 is $199/pr in kit. Installation price varies with different amplifiers.

PS-500SE POWER SUPPLY

PS-500SE replaces the old school LC-500 individual caps with a newly designed PC board with two 22000uF/100V 5-pin capacitors and the superb sounding HyperFred soft-recovery rectifier. This is basically half of our PS-500V2B power supply reservoir. It is in an even simpler and easier install job too. The instructions will be detailed and comprehensive. With a power drill and soldering iron you’re good to go. You can do this. PS-500SE can be ordered now. Example shown is dual-mono(2-PS-500SE) install into Adcom GFA-555 MkII.

Price for PS-500SE : $199 kit, $299 installed for typical installations

Alternative: Check out our PS-500V2B and PS-500M. You can construct a totally dual-mono power supply with our twin stacked toroid power transformer(TP-500). PS-500V2B has 88,000uF while the ‘M’ version has 120,000uF (8 exotic caps in CRC mode). The TP-500 can be easily installed with our PS-500V2B and PS-500M power supply boards on this page. That sounds massive and expensive doesn't it! You've seen far smaller power supplies in $10,000 amplifiers haven't you! That puts a different light on it we think. See below!

>>>SCROLL DOWN for more DH-500/XL-600 power supplies<<<

PS-100 POWER SUPPLY - compact design, huge sound

It’s good that we listen with our ears and not our eyes. …………jh, 2018

So puny! No wonder we made the other picture look bigger. Well it’s actually bigger because it has 15,000uF/80V ‘Premium’ caps of the standard PS-100 version. The amp above has the PS-100SE with two 10,000uF/80V caps, but you know what, this PS-100SE power supply is equal in capacitance to the original power supply. The 80’s era Hafler DH-200 had a pretty competent power supply considering its original price and market position. The PS-100 caps are rated at 80V as opposed to the 75V caps of the original increasing the safety margin. Modern caps are such great performers even with these modest physical packages. It also has an outstanding power rectifier that is vastly better sounding than the original. It’s lying flat for heatsinking purposes between the transformer and the PS-100 board under those two red wires(see DH-200 picture above). Think of the PS-100SE as a ‘restoration’ on steroids. Yes, our PS-100SE/DH-200 above is a major sonic upgrade even though it’s the most affordable of our PS series of power supply boards. Ignore the size, embrace the sound!

• Modern electrolytic capacitor technology has led to an increased superiority across the board. It’s a very positive shift. Looking at the original DH-2xx Hafler caps and comparing size to a modern cap of the same value - it’s amazing! These tech innovations have led to much smaller power supply size with greater reliability, performance and longevity in modern electronics. That’s right, better sound too.
• Diode technology has greatly improved. The PS-100 uses the same 22Amp/600Volt soft-recovery power rectifier as the PS-220 and our other more ‘hi-end’ boards. It’s a great sounding rectifier far exceeding the performance and sound quality of the original Hafler part.
• PS-100 has a sound of delicacy and yet big power and dynamics from a compact package!

All PS-100 boards install in a small space of 4.25” x 1.75” x approximately 3.5” high depending on your capacitor choice. The PS-100 mounts easily and compactly on four provided standoff mounts. All kits have complete mounting hardware including the mounting clip for the power rectifier, white silicone or heat dissipation pad, some new wiring, solder, instructions. See the PS-100 installation instructions here.

Select your PS-100 version >>>

PS-100SE> $99 kit, (for DH-120/200/220,others), with ‘ear approved’ 10KuF/80 or 100V caps, $120 typical installation fee

PS-100> $119 kit, (for DH-120/200/220,others), upgraded 15KuF/80 or 100V caps, $120 typical installation fee

PS-100 “BARE” Kit> $39/ea, Same PCB as above accommodates many caps, standard 2 and 4 pin-snap-in up to 40mm and Jensen caps caps. Kit includes PS-100 PCB with all mounting hardware then install your favorite parts: instructions included   Optional: The rectifier form factor is unusual making use of other rectifiers complicated, so add $27 for 1 - Ixys HyperFred rectifier, clamp and hardware

Major Versastility: PS-100 supports standard 2-pin 10mm Lead Space Snap-In caps including Audio Grade 2-pole parts, most 4-pin standard Snap-In caps and Jensen capacitors. It gives you a choice of caps up to 40mm size. Use the bare PS-100 board for your projects including customs.

For your Hafler DH-500/XL-600 and other larger amps we recommend the PS-500J or the PS-500 V2B.

PS-220 - Versatile dual-mono power supply

Why we developed the PS-220:

Previously our dual-mono mods were very labor intensive. We sold these in a kit form too, but for the first time builder it was complex and very time consuming to install. It all fit really tightly into the amps too - no room for errors. Now you can easily install it yourself . You don’t need the pros anymore, though some experience is always helpful. With the PS-220 there is plenty of room after installation. Our large TP-202 toroidal transformer is no longer a challenge to position and install with the dual-mono configuration for Hafler 200 series amps. The PS-220 will allow you to improve neatness of installation, shorten current paths due to "inverted" capacitors which is good, improve sound quality and lower the price for high-performance dual-mono sound. Easier, better sounding!

PS-220 Board Features:

• High quality FR-4 grade glass epoxy circuit board material for durability and toughness
• Extra heavy copper foils that can be thickened by adding solder - increase current capability / reduce impedance
• Extra B+ and B- output power eyelets which accept 14ga wiring
• Provision for LED connection which some applications require
• Bleeder resistors provided for safety
• Designed for standard two-pin or four-pin snap-in caps(35mm or 40mm)
• You can use exotic four-pole designs by Audio Grade
• Our standard capacitor is 10,000uF (SE Version) for use in DH-200/DH-220/XL-280. We have a upgraded version of the PS-220 with 15,000uF caps too.
• The higher voltage rails of the DH-500 and XL-600 amps are best served with the PS-500 V2B and PS-500J below.

 

The PS-200/220 bare board is sourced from a USA manufacturer. IXYS is a Silicon Valley company with worldwide operations.

What you can do with the PS-220:

Turn your Hafler DH-200, DH-220, DH-500 or XL-280/600 into a more musically satisfying product with improved imaging, crispness and dynamics. We have installed PS-220 boards into other amplifiers too. A number of Adcom owners have added PS-220 boards. See some more examples here. 

• Easily configure and quickly install a dual-mono power supply with 2-pin or 4-pin snap-in capacitors.
• Enjoy superb Audio Grade 2 and  caps. No installation confusion installing  caps.
• Easily install twin, great sounding IXYS HyperFred bridge rectifiers, chassis clips for heat dissipation included.

>Experienced builders can use this as a power supply upgrade for many solid-state amps<

Our full PS-220 kits include the PS-220 "bare board" kit shown further down on this page. PS-220 installation instructions >>> here in PDF download!

Select your PS-200/220 version >>>

PS-220SE> $199 kit, (DH-120/200/220, XL-280 amps) with standard 10KuF/80 or 100V caps, $130 typical installation

PS-220> $249 kit, (DH-200/220, XL-280 amps) with premium 15KuF/80 or 100V caps, $130 typical installation

PS-220M> $299 kit, (DH-200/220, XL-280) with superb Audio Grade 10KuF/80V caps, add $130 typical installation

PS-200M> $419 kit, (DH-200/220, XL-280) with superb Audio Grade 10KuF/80V caps, add $130 typical installation

“Bare Kits”>>>

PS-220(for 2-pole caps, Jensen 4-poles too) "BARE" kit: $59/ea, (see below) - PCB with mounting hardware, install your favorite parts:  instructions included

Optional: The rectifier form factor is unusual, so add $44 for 2 - HyperFred rectifiers, clamps and hardware

PS-200M(Audio Grade / Mundorf 4-pole too) "BARE" kit: $59/ea, (see below) - PCB with mounting hardware, install your favorite parts: instructions included

Optional: The rectifier form factor is unusual, so add $44 for 2 - HyperFred rectifiers, clamps to improve heatsinking and hardware

PS-220 "bare" circuit board kit  -  just add caps and rectifiers - our FULL kits include this kit plus lengths of heavy wire, rectifiers and big caps

POWER SUPPLIES FOR HAFLER DH-500 or XL-600 amplifiers

NOTE: We do have one of the older PS-500J with 4 Jensen 6800u/100V caps. It’s a great sounding board. It is used and a great, unobtainable nearly, board at a used price.

NEW>>>  PS-500M POWER SUPPLY with Audio Grade CAPS

 Now: No fit issues with the PS-500M, a single PC board with simpler, faster install. Go ahead, install yourself. We reduced the labor pricing on this mod by over $100 compared to the old way with the two separate boards. Oh yeah there’s a new fan there, not part of this mod, but which can be installed for low noise and excellent reliability. Good all around.

Big Bonus: We love the sound of the CRC power supply topology. You can also do that with a ‘main’ power supply with as much or more benefit. Your PS-500M power supply board is a CRC design employing four large white “Rs” in the pictures producing four independent power supplies, two (+) plus and two (-) minus taps. The second picture has the “module” released and moved toward the rear so you can see the High-performance rectifiers clamped to the chassis for heat dissipation. Yes, you’re right, that is 80,000uF of capacitance, 2X the original.

The Sound: Audio Grade caps are clear, clean, accurately extended at the top and at the same time exciting. Another bonus is a more tuneful solid bass than you expected.

PS-500M.2 power supply:

>$399 kit

>$549 installed

Kit includes - (1) PS-500M circuit board with all mounting hardware, (8) Audio Grade 10,000uF/100V M-Lytic caps, (2) 22A/600V premium rectifiers with mounting hdwe, (4) radial mount 10 Watt resistors, (4) small bleeder resistors, solder, lots of wire, misc parts and instructions

PS-500M "BARE" kit: $79/ea

Kit includes PCB with full mounting hardware, includes 4 large resistors for CRC, 4 smaller bleeder resistors, instructions. PS-500M PCB supports 2-pin snap-in types including Audio Grade (2-pole caps only) and many other 2-pin snap-in caps. Maximum diameter of caps is limited to 35mm.  Optional: The rectifier form factor is unusual, so add $44 for 2 - soft-recovery rectifiers with mounting clips and hardware

Note: Amplifier is not included with this kit.

PS-500V2B POWER SUPPLY - 88,000uF and it sounds like it!

The DH-500 with original caps provides 40,000uF total capacitance. That’s not bad, but that is an aging, tired power supply. It is also a ‘stereo’ not ‘dual-mono’ power supply hence the peak and minimum power demands makes one channel affect the voltage/current available to the other channel. This can affect the sense of imaging and focus of instruments on the sound stage. Another notable effect is that the amp will seem less powerful because as high power demands rise it can make the amp seem a bit more muddled and less precise/relaxed.

You have a big amp and you want to maximize the sense of power. Maybe you need maximum muscle to drive a ‘difficult’ speaker. You want a ‘dual-mono’ sound quality.* You want a powerful, yet liquid and delicate quality from the power rectifiers. We knew what to do. We designed the PS-500V2B to fill those desires. We could go on with a dozen more buzz words but you just want no-nonsense, big power sound and this is the answer. The PS-500V2B is civilized big power.

Features: Solder fillable tracks, Clean simple installation, Superbly sweet soft-recovery rectifier

  

 

Select your PS-500V2B version >>>

PS-500V2B> (Hafler DH-500, XL-600):

>$299 Kit, $449 installed

$150 labor for a typical installation - Kit includes PS-500V2 PCB, 4-22,000uF/100V caps, 2 - HyperFred soft-recovery rectifiers with clamping hardware, heavy gauge wire, solder, all mounting hardware and instructions.

*Full, true dual-mono operation can be achieved with our TP-500 stacked toroid power transformer modification.  

PS-500V2B> "BARE" kit:

>$59

PCB with full mounting hardware, install your own parts: $59/ea, instructions included. PS-500V2 PCB supports 2-pin, 4-pin and 5-pin snap-in capacitors. Optional: The rectifier form factor is unusual, so add $45 for 2 - HyperFred rectifiers, 2 - mounting clips and hardware

Note: Amplifier is not included with this kit.