Bruno Putzeys Balanced Preamp - Group Buy Part 3 - diyAudio
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Old 30th October 2016, 10:41 AM   #1
tfboy is offline tfboy  United Kingdom
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Location: Reading, Berkshire
Default Bruno Putzeys Balanced Preamp - Group Buy Part 3

Order Status at 12:00 GMT 15th March 2017
Code:
          Bare   Assd   HxR
Ordered:   15     65     76
Paid:      13     60     71
This GB is now pretty much CLOSED. Currently, we are full for HxR regulators. Room for a few more assembled boards.

If you have already put your name down in the Shared Google doc, I need you to email me the details at the bottom of this post for me to be able to send you a quote and process your request.

If you had your name down in the Shared Google doc, but want to withdraw, that's fine, but PLEASE LET ME KNOW by email / PM so I can amend. A few have deleted their names and it's taking me time to understand why the totals no longer match. Thank you!

Once I have received the boards (estimated 7th Feb), I will start chasing those who put their name down but haven't paid. If by mid February they haven't paid, I'll release their allocation to anyone on the waiting list.


OK, I've decided to get a feeler for doing another group buy round. Previous thread here.

Background / original technical discussion thread HERE. A lengthy but very worthwhile read. Most technical questions will be covered in that thread.

This GB will be similar to beforehand with three options:

1. Bare PCB.
2. Assembled PCB with only the SMDs assembled. You'll still have to source all through-hole components and solder yourself.
3. Hypex regulator upgrade option. As last time, these will be supplied in pairs, so a quantity of 1 means one pair of regs. Shipped loose in the package, you'll have to solder to board - this is also a chance to get some at a reduced rate for other projects you might have on the go too

The BoM is here, in Excel format and in PDF format

Before commiting to a relatively large expense, I've set up a shared Google Docs spreadsheet where you can put in the date, your forum username and quantities of each you would like.

Please express your interest and quantities in >> THIS SHARED DOC <<. Please do not edit the "Emailed" column. This is for my records so I can keep track of who I've contacted.

I've now received a quotation for the following quantities: 20 bare boards and 70 SMD-assembled boards. This is the limit I've now set myself to get this into production.

All prices are in British pounds (GBP).

Final price per bare PCB (batch of 20): 6.00 + VAT = 7.20
Qty 20: 12 + VAT = 14.40
Qty 50: 6 + VAT = 7.20
Qty 100: 4 + VAT = 4.80


Final price per assembled PCB (batch of 70): 31.00 + VAT = 37.20
Qty 20: 40 + VAT = 48.00
Qty 50: 33 + VAT = 39.60
Qty 100: 27 + VAT = 32.40


Based on a quantity of 50 - 100 pairs of HPR/HNR Hypex regulators, one pair would cost around GBP 20 + VAT = 24.00

VAT will be applicable to EU people (unless purchasing through a VAT-registered business). Non-EU people will not have the VAT added (but you may have import duties outside of my control). Shipping to non-EU people will have a customs declaration form attached to the package

I appreciate there is / was a lot of interest for this first time round, and I have received quite a few PMs from people who unfortunately missed out, so if we can get enough people on board, it will be worthwhile doing it again.

Packaging and shipping
Packaging is a flat 2.00 + VAT to cover for boxes, anti-static bubble wrap, anti-static bags, etc.
Postage is at cost to me to send Royal Mail (International) Signed For. If people are ordering a lot and are in UK, I Special Delivery is also available. Please let me know. I'll send out tracking numbers once I have them. Non-EU parcels will also have CN22 Customs Declaration form filled in.

For those of you who haven't signed up yet, please do fill in the Google Docs sheet linked above. Once you have done that, please email me "HypexPreAmpGB @ xavbroadcast dot co dot uk" with the following details:
Quote:
Forum username:
Email address:
Full name (and/or company name):

Number of bare PCBs: 0
Number of SMD-assembled PCBs: 0
Number of pairs of Hypex regs: 0

EU VAT number (if applicable):

Full Invoice address (including postcode, area, country, etc):

Delivery address if different to invoice one
Lead time on the assembled boards should be around 15 days so should have them available for dispatch end January / beginning of February assuming I place the order this week.

Any questions, just ask

Last edited by tfboy; 15th March 2017 at 12:03 PM. Reason: Updated order status
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Old 30th October 2016, 11:12 AM   #2
Gerben is offline Gerben  Netherlands
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Yes please! One assembled board.
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Old 30th October 2016, 11:13 AM   #3
tfboy is offline tfboy  United Kingdom
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Quote:
Originally Posted by Gerben View Post
Yes please! One assembled board.
Done
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Old 30th October 2016, 12:24 PM   #4
ChrisPa is offline ChrisPa  United Kingdom
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Mine added.
Thanks for doing this (or even considering doing this). Much appreciated
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Old 30th October 2016, 06:09 PM   #5
flashgo is offline flashgo  United States
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Thank you! I signed up for 1 assembled board + 1 reg set.
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Old 31st October 2016, 10:06 AM   #6
tnargs is offline tnargs  Australia
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How many boards make 2 channels?

And how many pairs of regs is sufficient for 2 channels?
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Old 31st October 2016, 01:43 PM   #7
aradan is offline aradan  Singapore
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Location: Born in Russia, living in Singapore
Hi Tfboy,

One assembled board and 4 sets of regs

Sent from my ONE A2003 using Tapatalk
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Old 31st October 2016, 02:16 PM   #8
tfboy is offline tfboy  United Kingdom
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Quote:
Originally Posted by tnargs View Post
How many boards make 2 channels?

And how many pairs of regs is sufficient for 2 channels?
1 board.
Each board is stereo. And you have two pairs of switchable inputs. All are Neutrik balanced XLR sockets.
Each board can take one set / pair of regulators. You don't need the Hypex ones, you can use regular regs if you want.
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Old 31st October 2016, 06:27 PM   #9
tfboy is offline tfboy  United Kingdom
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Added tentative pricing. Shipping would be additional (at cost). See original thread for details.
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Old 31st October 2016, 08:18 PM   #10
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I have one question:

If I'm not wrong the power supply should be +12/-12 V.

Instead of any transformer, I'm planning to use the auxiliary +24/-24 (500mA) power supply from my SMPS1200/400 PS to feed just before the 1000uf caps. I would install LM7815 and LM7915 regulators at the +24/-24 output and then connect to the 1000uf/35V caps.

Will it work?
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