[KR500]

The sellers already shipped the case and banana posts this morning !
Hazard Fraught had a sale on the 5 speed 8 inch drill press this week for $49 so picked one up for drilling jack holes

[lacro]

The sellers already shipped the case and banana posts this morning !
Hazard Fraught had a sale on the 5 speed 8 inch drill press this week for $49 so picked one up for drilling jack holes

Might want to pick up one of these to go with it: http://www.harborfreight.com/catalogsearch/result?q=drill+press+vise
It's pretty cheap with 20-25% coupon, and makes life easier/safer when using a DP.

[KR500]

Thanks for helping out 'cro
Got a coupon from the purchase on the drill press earlier today so will head back tomorrow to pick one of those up that you suggested.
I should have grabbed one of these drill presses already , could have used it several times on other projects
Any suggestions for a good power supply for the new Sure 3110 board ?
I'm looking on CL for a good linear PSU but around here that's going to take some time, so will need to use a brick for the time being

[lacro]

Any suggestions for a good power supply for the new Sure 3110 board ?
I'm looking on CL for a good linear PSU but around here that's going to take some time, so will need to use a brick for the time being

This one was recently given a good review on the DIY Audio forum:
http://www.amazon.com/Vgp-ac19v26-Vgp-ac19v24-Vgp-ac19v10-Vgp-ac19v11-Vgp-ac19v12/dp/B00AWLJ7VK

I have tried several 12-24 V SMPS bricks with 1-6 amp output ratings. They all worked. The 18-21V laptop bricks seem to be the most popular as the chip delivers more power with higher voltage. I really like my Astron SL-11A 13.8V linear PS for the best sound quality I have heard so far.

[matt_garman]

Any suggestions for a good power supply for the new Sure 3110 board ?
I'm looking on CL for a good linear PSU but around here that's going to take some time, so will need to use a brick for the time being

The Astron (for example, RS-12A) power supplies are really popular.  Many have commented that they are better than batteries.

Where are you located?  I actually have my Astron RS-12A up on Craigslist (Chicago).  Nothing wrong with it, except that I built the Sigma11 to replace it.

[KR500]

Matt;
I'm in NW Ohio , the glass city
A little too far too drive but thanks for the thought

[shadowlight]

Can anyone point me to the Oscon model being used?  I found some info on the DIY thread but when I search for the part on Mouser's the price is showing up in Euro so I am wondering if I am searching for the right part for use in US.


Edit: never mind just noticed that Mouser was set to show the pricing in Euro 

[KR500]

Just ordered the NEW Sure 3110 board from their auction place store this morning
Now have to get standoffs , a panel mount power jack , LED , hook-up wire and a solid SPST switch.
Looking at the new Hazard Fraught drill press vise I picked I see the jaws don't close together on both sides so it's back to the store to see if they're all like that ?

[lacro]

Can anyone point me to the Oscon model being used?  I found some info on the DIY thread but when I search for the part on Mouser's the price is showing up in Euro so I am wondering if I am searching for the right part for use in US.


Edit: never mind just noticed that Mouser was set to show the pricing in Euro  :oops

I find Digi-Key has cheaper/quicker shipping.

http://www.digikey.com/product-search/en?mpart=25SEPF330M&vendor=10

[Odal3]

Perfect. Thanks for sharing the link since I'm just about to order the parts for my first mod attempt on the sure 3110 old version plus the 3116 audiobah board. What would be a good shopping list for a first time modder? I'm also looking for some high quality resistors buy have no idea what to look for.

[matt_garman]

Perfect. Thanks for sharing the link since I'm just about to order the parts for my first mod attempt on the sure 3110 old version plus the 3116 audiobah board. What would be a good shopping list for a first time modder? I'm also looking for some high quality resistors buy have no idea what to look for.

Take a look at the DIYAudio tpa3116 wiki.  It's 3116-centric, but much of the information is relevant to the 3110.

There hasn't been too much discussion about the old Sure 3110 board lately, and going from memory, there wasn't a lot of modding done to those, except changing the big electrolytic caps on either side of the amp IC.  You can add ferrite beads to the output wires if you're concerned about EMI.  Even with the new 3110 board, I find myself satisfied with only changing out the electrolytic DC de-coupling caps.  I might be leaving some potential gains on the table, but with this simple mod, it's the best-sounding nearfield amp I've heard, so I'm in no hurry to do further modding.  (To be pedantic, I did additional "mods" to both new and old Sure boards by adding screw terminal blocks to the board, but that's for convenience, not to bring any sonic benefit.  And some would even argue I'm hurting sonics a bit by not direct soldering wires to the board.)

Side note: over on DIYAudio, someone posted a pic of a dual PBTL 3110 amp based on the "AC1103" board.  Search for "30W PBTL" on AliExpress to see the AC1103 board, or this link might work.  I'd like to try this board out, but the unit is "Bag" and I can't figure out what that means.  At over $100, it should mean you get multiple boards, but it would have to be at least 10 to be a good value IMO.

[KR500]

okay , the HF drill press vise IS okay after doing some  final QC on it as one of the four screws holding the jaw edge wasn't threaded in all the way so was sticking out .
Donning my HF muppet-grade felt work gloves I adjusted the travel on the bottom plate and it's ready to go.
I'm going to see if they have any of the small vises left in the store

[Markvdv]

I reduced gain tiny old Sure3110 too and replaced the tiny input ceramics by Wima TH 2.5mm MKS.

[devereld]

A newbie question, but how is the wiring for the mute and other connections shown here hooked up?

I assume its for the power switch and LED on the front but am unsure which connects where.

[lacro]

A newbie question, but how is the wiring for the mute and other connections shown here hooked up?

I assume its for the power switch and LED on the front but am unsure which connects where.

Your photo is Matt's TPA 3110 2x15W Sure board that he modded. For convenience, Matt added 2 screw down connection blocks on the Right side of the board. He installed a switch between SD (shut down) and grd. This is to prevent the on/off pop heard in speakers. It is not a power on/off switch. The other block he added is power for his LED (VCC/GRD).

This is a photo of the stock board, note that all connections - power in, signal in, and speaker out are all have jacks or screw blocks already. However, there are direct solder holes if you prefer to hard wire. If you want the "pop preventing" shut down switch, and LED, you will have to do as Matt did with the blocks or wire directly.

[lacro]

I reduced gain tiny old Sure3110 too and replaced the tiny input ceramics by Wima TH 2.5mm MKS.

How did you lower the gain? Do you have any photos of both mods?

[Odal3]

Take a look at the DIYAudio tpa3116 wiki.  It's 3116-centric, but much of the information is relevant to the 3110.

There hasn't been too much discussion about the old Sure 3110 board lately, and going from memory, there wasn't a lot of modding done to those, except changing the big electrolytic caps on either side of the amp IC.  You can add ferrite beads to the output wires if you're concerned about EMI.  Even with the new 3110 board, I find myself satisfied with only changing out the electrolytic DC de-coupling caps.  I might be leaving some potential gains on the table, but with this simple mod, it's the best-sounding nearfield amp I've heard, so I'm in no hurry to do further modding.  (To be pedantic, I did additional "mods" to both new and old Sure boards by adding screw terminal blocks to the board, but that's for convenience, not to bring any sonic benefit.  And some would even argue I'm hurting sonics a bit by not direct soldering wires to the board.)

Side note: over on DIYAudio, someone posted a pic of a dual PBTL 3110 amp based on the "AC1103" board.  Search for "30W PBTL" on AliExpress to see the AC1103 board, or this link might work.  I'd like to try this board out, but the unit is "Bag" and I can't figure out what that means.  At over $100, it should mean you get multiple boards, but it would have to be at least 10 to be a good value IMO.

Thanks for the tips and the link!

[Markvdv]

How did you lower the gain? Do you have any photos of both mods?

many moons ago:) page 20 post #397

[KR500]

Just received the amp case lacro tipped me to back a few posts and it got here under 2 weeks even with the holiday mail
Looks like it will work out well for the Sure 3110 board when it gets here.
I recently ordered the SMSL SA36A PRO from amazon to compare and it arrived here Tuesday.
I'll have to let it run a while, but first impressions, the on-off switch is nominal at best. Sounds bass shy.I might send it back if it doesn't get better sounding. It's small.
Using the Little Dot MKII+ with upgraded NOS Russian tubes as a pre and V-DAC from a Marantz CDP.

Update; After turning down the preamp considerably the 3118 SMSL sounds better . I think I was exceeding it's limits at first try.
On/Off switch works fine , just feels like a cheap momentary switch at first. I'm using the SMSL 36A P until my Sure 3110 board and mod parts get here.

[lacro]

I built an input selector (3 in) to use with my YJ 3 tube pre, and my favorite class D amp the Sure TPA 3110 2X15W with Oscon caps. Now I can easily switch sources at my desktop set-up. I can switch between streaming media on my PC, CD's, and my old cassette deck which sounds absolutely amazing with the tubes, and class D amp. I have about 200 albums on cassettes that I haven't heard in years. Bob James 'Hands Down' sounds amazing!!

I have a little over $20 total invested in the selector box. Cheap, worthwhile, and fun project requiring 48 separate solder connections, and drilling 9 holes.

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