The Paul Hynes SR7

[flkin]

If the count started at the beginning of the year then that would make the current production rate at roughly 2 per month.

 

If so the delivery estimates might be :

 

Jul 2018 - #14

Aug 2018 - #16

Sep 2018 - #17 (unavoidable delays)

Oct 2018 - #19

Nov 2018 - #21

Dec 2018 - #21 (holidays)

Jan 2019 - #22 (recovery)

Feb 2019 - #24

Mar 2019 - #26

Apr 2019 - #28

 

If I base my expectation on this, then I will be pleasantly surprised if I can get delivery before the estimated time. ?

[limniscate]

I just received mine.  How do you adjust the voltage?  Do you have to open the case?

[sig8]

Yes you have to open the case. Open four screws from side, preferably from switch end. Slide the top out. You will see blue potentiometer with a small brass screw on top. As you turn that, it varies the voltage. Take your time first few times. It is little tricky because you have to measure voltage while you turn the brass screw. All this is based on my SR7.

[Johnseye]

18 hours ago, limniscate said:

I just received mine.  How do you adjust the voltage?  Do you have to open the case?

 

You'll need a volt meter

[HeeBroG]

Hi All,

 

I was build #6 and received mine last week.

I was worried when I saw here that build #7 delivered before mine.

I contacted Paul who kindly responded after a short pause and reassured me that mine was delayed because of wrong parts order.

 

I was anxious as all of you are that haven't received yours but I believe Paul is very honest and will fulfil his commitments completely.

 

Thanks sig8 for posting about opening the case to adjust output voltage on my 2nd rail as Paul has not responded to my emails. He must have too much on his plate at the moment.

 

Cheers,

 

Geoff

 

[paulhynes]

Adjustment of SR5 and SR7 power supplies.

 

The SR5 and SR7 were not originally designed to allow user output voltage adjustment and were intended for specified output voltage applications. The regulator modules have a precision multi-turn potentiometer on board to allow fine voltage setting. Several customers asked for adjustable output voltage and it was easy enough to select a potentiometer to cover a reasonable range of adjustment for those with experience delving into equipment and possessing a voltmeter to measure the set voltage. Once word of this spread most customers wanted this facility, however it has become apparent that some have little experience of setting up electronic items internally and several customers have had problems with this procedure which is outlined below for those wanting to adjust their supply voltages themselves.

 

To adjust the voltage on any of the rails you will need to switch the power supply off and disconnect the power supply from your equipment. Then unscrew the back panel allowing the top plate to be removed from the side extrusions. This will reveal the regulator modules and there is a small blue precision multi-turn potentiometer on each module for voltage adjustment. From the row of DC connectors on the back panel choose the rail you want to adjust and follow the wiring back to the regulator module for this rail. You will need to connect a volt-meter to the pins on the DC connector, being very careful not to short out any of the pins. You can then switch the power supply on and adjust the regulator potentiometer to set the required output voltage. Allow a few minutes for thermal stability then readjust the potentiometer. Once set, switch off and you can then replace the top panel and rear panel. Reconnect to your equipment and switch on again and you are ready to play music.

 

For those without the experience or the confidence for hands on internal adjustments I have designed a precision stepped attenuator to replace the potentiometer on the regulator module. Up to four stepped attenuators can be fitted to the front panel of the power supply allowing external adjustment of the regulator output voltage for up to four rails. The attenuator control knob has a dial with numbers from 2 to 12 and this fits nicely for a 2v to 12v adjustment range. Some power supplies have voltage requirements above 12v, which can be accommodated by customising the stepped attenuator range. The dial numbers will not then match the output voltage setting directly and a setting key label can be fitted on the power supply designating the set voltage for each dial number.

 

For those with outstanding custom build orders interested in having the external adjustment offered by the stepped attenuators contact me via e-mail at [email protected] to discuss your requirements and the cost before I start your build. I can also retro fit these attenuators if required but the cost will also have to including shipping both ways.

 

Custom build cancelled order availability.

 

For those disappointed that I closed the custom build service earlier this year, I now have several cancelled orders awaiting transfer to new customers, where the previous customer requirements or circumstances have changed. These may suit your application requirements and offer the opportunity to acquire a first class power supply to suit your personal equipment applications. It is also possible to re-customise these supplies. Lead times will vary depending on the order position in the build schedule. E-mail me if this is of interest.

 

I should be starting build 15 next week.

 

Build 16 is one of the order cancellations, so if you want a high spec power supply with 3 DR rails, 19v 3A, 12v 3A and 12v 3A and XL construction, without a long lead time, let me know.

 

Build 17 is also an order cancellation and also a high spec DR XL construction but with three higher power rails to be built into a Streacom FC9 chassis. The rails are 12V 10A, 9V 6A and 5V 6A.

 

There are also several standard spec cancellations further down the build schedule.

 

We are closed for annual summer holidays from 23^rd July to 3^rd August and 20^th August to 24^th August.

 

Regards

Paul

 

[TheAttorney]

For those that have yet to open up their SR7, the following may save some time:

 

The screws used are Torx star-headed screws, size T20.

The usual Philips/Posidrive cross-headed screwdrivers won't fit.

 

I unscrewed the back panel, as Paul recommnded. There are wires connected to the back panel, but it only needs to be angled out slightly in order to get a grip on the top panel to slide that out.

[flkin]

Doesn't it make you sad ? when you've paid upfront and stand in a queue which can be a year long, when Paul then offers anyone to simply jump the queue and  even "re-customise" the design (basically design to your spec)?

 

Makes you want to cancel your order and use the proceeds to jump the queue and spec your original order again.?

 

This news sucks for existing queued customers. 

[paulhynes]

Flkin,

 

I guess you have misread my last post. Nobody is jumping queues. If a customer wants to cancel his order, for whatever reason, I offer his order to others to allow me to give him a full refund. This does not alter the queue, as the new customer taking over the cancelled order will still have to wait until the original customer number in the queue before I start building the power supply.

 

Re-customisation is possible in limited circumstances as the materials I have purchased for the build can often be re-configured slightly to match requirements. However, if the build is imminent and a new mains transformer is required this can delay the build by the lead time from my transformer manufacturer (currently 30 to 40 working days from order placement to shipment). In this case the order is set aside until the transformer arrives allowing others in the queue to move forward, which is a plus factor for them.

 

Build 16 and build 17 are imminent (starting soon). I guess there is nothing stopping people from ordering one of these power supplies and cancelling orders placed later in the queue. However you would have to pay the original order cost, cover any re-customisation costs, which could be significant and possibly suffer a lead time postponement if a new mains transformer is required. You would also have to await the sale of your cancelled order to receive a refund for this. Overall this could be a costly exercise. There are only a few cancelled orders so the scope for the scenario you have raised is limited but I can see that this could end up being a problem if people tried to do this every time an order cancellation occurs, as it would waste a lot of my time and annoy others in the queue.

 

For those considering following this scenario you should note that my custom build order terms have no cancellation rights. This is normal for custom-made items. If customers do need to cancel their order I offer to help sell the order on to someone else. This offer of help is not there for people to abuse and I would be disinclined to help with such transactions outlined above.

[flkin]

@paulhynes, apologies for my earlier message which was typed in a heated state. From your reply, I guess you know why this was the case. It's good you further clarified.

 

When do you order parts for a build? If someone is in your queue with many months to go, can changes be made to their orders?

[auricgoldfinger]

6 hours ago, flkin said:

If someone is in your queue with many months to go, can changes be made to their orders?

 

I have changed my order several times along the way.  Paul says it is not unusual as people's needs change during the course of the wait.

[paulhynes]

Flkin,

 

I generally order long lead time materials for a build during the week following payment. Small component orders for builds are usually processed together at the end of the month of order as they are usually in stock with my suppliers. Out of stock items go on back order but their lead times usually complete before the build starts. This means that by the time the build starts everything is in stock for the build.

 

Changes to specification can usually be accommodated provided any additional costs are met. If a spec change is late in the lead time, and requires a new mains transformer, there may be a delay with acquisition that over extends the original build lead time.

[amir57bs]

Hi guys

if you remember i told paul is not trusted and he not refund my money after 6 month.

now Paul have sent me an email and he told me he will refund my money this week.

 

Good news to me and other who would like to order Paul.

i should say Paul is trusted and if you pay him he will refund your money .

 

Amir

[paulhynes]

Builds 16 and 17 have now been re-sold and have new homes to go to. Refunds will be issued to the original build owners as soon as the re-sale funds arrive.

[KMan]

Got my SR7 (#13), I should have got it earlier but I was travelling so I had asked Paul to ship it later.  

 

Was totally worth the wait. Sounds smoother with improved transparency and dynamics. Previously I was using iFi power supply for Tx-USBUltra and modded switch,  and a LPS1 for SMS-200. 

[Ciukas]

For a SR7MR4XL with two 6A modules and two 3A modules, meaning 18A of continuous current, I take it to mean  that a power strip distributor must have the capacity to have a maximum current rating of 18A or more? The only power strip I found capable of delivering up to 20Amps of continuous power that's somewhat transportable is the Shunyata Venom PS8.

 

Their EU version sadly only offers up to 16A continuous current. Can anyone else can offer any other alternatives? It seems most of the competition maxes out at 10A.

 

The two 6A modules will mostly be used to power the TT2 + Hugo MScaler.

 

 

[beautiful music]

1 minute ago, Ciukas said:

The two 6A modules will mostly be used to power the TT2 + Hugo MScaler.

 

 

 

From where you got that the Hugo M Scaler need a 6A.

 

Because AFAIK from Audiobacon website when the M Scaler was released they mentioned that it can be powered by SR4 which has a maximum 2A 

[paulhynes]

Actually, the SR4 can provide 2.5A continuously when set to 12v or 9v. The continuous load current draw should be restricted to 2A when set to 7v or 5v to avoid running the power supply at too high a temperature.

[paulhynes]

Ciukas,

 

The 18A current is the output current available spread across the four regulated output rails of the specified SR7. The input current required from the mains, when all rails are fully utilised, would be between 6 to 10 times lower on 110vac mains and between 12 to 24 times lower on 230vac mains depending on the specification of the secondary windings of the mains transformer. Most loads would idle at lower than maximum continuous rail current so the mains input current would be even lower in these circumstances.

[octaviars]

21 minutes ago, Ciukas said:

For a SR7MR4XL with two 6A modules and two 3A modules, meaning 18A of continuous current, I take it to mean  that a power strip distributor must have the capacity to have a maximum current rating of 18A or more? The only power strip I found capable of delivering up to 20Amps of continuous power that's somewhat transportable is the Shunyata Venom PS8.

 

 

That is the power on the DC side on the AC side the amperage is much lower. 

 

 

[Ciukas]

Thank you all for explaining the fundamental differences between AC/DC. I expect to report back next year on my SR7 experience w TT2/MScaler, streamer, etc. This thread needs more impressions.

 

@beautiful music Sent you PM to avoid derailing this thread

[beautiful music]

1 hour ago, Ciukas said:

Thank you all for explaining the fundamental differences between AC/DC. I expect to report back next year on my SR7 experience w TT2/MScaler, streamer, etc. This thread needs more impressions.

 

@beautiful music Sent you PM to avoid derailing this thread

@CiukasReceived thank you and sent you a reply

[beautiful music]

Did the SR7 came with power cord or not?

[auricgoldfinger]

Paul does not include power cables with the SR7.

 

[auricgoldfinger]

Has anyone taken delivery of their SR7 in recent months?  We haven't received an update on the build list since June 28th.

 

Also, what power cord are people finding work well with their SR7?