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LDR Volume/Preamp Controller with 256x64 OLED Display & Remote
LDR Volume/Preamp Controller with 256x64 OLED Display & Remote
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Old 13th July 2020, 07:55 AM   #21
dvb projekt is offline dvb projekt  Germany
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LDR Volume/Preamp Controller with 256x64 OLED Display & Remote
Hi Morten,

thanks for the info.

Is the OLED-Display for the V3 Max the same as for the V25?
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Old 13th July 2020, 11:39 AM   #22
CaptainWatt is offline CaptainWatt  United States
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Quote:
Originally Posted by dvb projekt View Post
Hi Morten,

Is the OLED-Display for the V3 Max the same as for the V25?
Yes. Same Rev C hardware with SPI control interface. Same 14 pin (2x7) ribbon cable connection. IR receiver module mounts directly to the OLED interface board. Rotary encoder with integral pushbutton also connects into the OLED interface board.
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Old 14th July 2020, 05:38 PM   #23
CaptainWatt is offline CaptainWatt  United States
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Hi All,

I'm please to announce that the ePot.V3 "Max" Electronic Stepped Attenuator & Preamp Controller is now available for pre-order for $249 which is $50 off the regular price.

We anticipate an August 10th release date same as the ePot.V3 Mini announced earlier.

The key differences between the Max and Mini is the Max is a bigger board intended for chassis mounting, does not have an embedded encoder, has built-in input switching for up to 6 single-ended stereo inputs, has built-in LDR calibration, and has a few additional control interface options not available with the Mini. We are still in the process of putting together detailed product documentation on all of that.

More info here: Electronic Stepped Attenuator | ePot.V3 Max | Tortuga Audio

..and here: ePot.V3 Stepped Attenuators set for August Release | Tortuga Audio

Features of the ePot.V3 Max include:
  • Input switching between 6 inputs via very low noise analog switches
  • LDR (light dependent resistor) attenuation module
  • .....100 step attenuator
  • .....-60 to 0 dB
  • .....adjustable impedance 1k to 100k | 20k default
  • .....built-in LDR calibration system
  • .....plug-in replaceable module
  • Optional alternative discrete resistor attenuation module
  • .....127 step attenuator
  • .....-63.5 to 0 dB
  • .....60k fixed impedance
  • .....plug-in replaceable module
  • Smooth stepping with no sonic artifacts
  • No mechanical parts in the signal path
  • Remote controlled (Apple infrared remote)
  • Manual control via rotary encoder
  • Chassis mounted
  • Smooth muting/unmuting
  • Left/right channel balance w/ reset (+/- 10 db)
  • Optional status LED
  • Optional high contrast menu driven OLED display with encoder & IR receiver
  • 2.7" wide by 4.4" long x 1.5″ deep
  • Solder pad or pin header for connecting audio input/output

Cheers,
Morten

The ePot.V3 Max is shown below with an LDR attenuation module installed on the left and a discrete LDR module shown on the right. The Max board shown in this pic is an earlier prototype - some minor changes were made in the production board.

We expect to have much better set of production hardware pics in about a week or so.

The second pic shows the relative size differences between the Mini and Max together with the 2 different types of plug-in attenuation modules.

Click the image to open in full size.

Click the image to open in full size.
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Old 18th July 2020, 03:35 PM   #24
CaptainWatt is offline CaptainWatt  United States
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Hi All,

We've stood up the initial version of the hardware manual for the new ePot.V3 Mini. The link is below. This manual covers the hardware end of things but does not get very far into how the controls work which will be covered in a separate operation and control manual which is being worked on.

ePot.V3 Mini hardware manual | Tortuga Audio

Cheers,
Morten
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Old 23rd July 2020, 04:07 AM   #25
pinnocchio is offline pinnocchio  Canada
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Hi Morten,

Does ePot.V3 "Max" come with both R2R and LDR modules or we choose when preordering? If we choose upon ordering, can we order the other module after and swap or we need to update the firmware?

thanks
Do
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Old 23rd July 2020, 01:25 PM   #26
CaptainWatt is offline CaptainWatt  United States
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Quote:
Originally Posted by pinnocchio View Post
Hi Morten,

Does ePot.V3 "Max" come with both R2R and LDR modules or we choose when preordering? If we choose upon ordering, can we order the other module after and swap or we need to update the firmware?

thanks
Do
Hi Do,

Your question actually prompted some adjusting to how we're going to price/sell the new ePot.V3. To maximize flexibility the Max can now be purchased bare without any attenuation module at a reduced price. An LDR module is added in by default but you can opt for no module, an LDR module only, a discrete module only or both. The modules are priced the same at $49 each.

Either module type can be purchased separately but we haven't stood those up as individual products yet.

The 2 attenuation module types are interchangeable but you have to turn the unit off, change out the module, and then turn it back on. You don't even have to power it down, just turn it off to do the change over.

The firmware is already set up to operate with either module type. You don't have to tell the Max or Min what module type it has - no jumpers etc. It detects what type module is plugged in automatically.

Cheers,
Morten
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Old 3rd August 2020, 12:57 AM   #27
CaptainWatt is offline CaptainWatt  United States
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Hi All,

We've started production on the new ePot.V3 Mini and Max stepped attenuator/controller boards this past week. Woo hoo! Work continues on polishing the firmware but it's the nature of software that it's never done....just shipped. The V3 Mini will likely get released first by mid-August followed shortly thereafter by the V3 Max. We'll be sending out a detailed newsletter on all that later in the week.

I plan to have a new set of pics by the end of the week showing the production hardware in more detail.

We are currently taking discounted pre-orders for both the Mini and the Max per the links below.

Pre-order your Mini: Electronic Stepped Attenuator | ePot.V3 Mini | Tortuga Audio

Pre-order your Max: Electronic Stepped Attenuator | ePot.V3 Max | Tortuga Audio
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Old 10th August 2020, 05:27 PM   #28
CaptainWatt is offline CaptainWatt  United States
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Hi All,

First round of production pics of the newly released ePot.V3 Mini Stepped Attenuator/Preamp Controller are in!
Hear ya go. :thumb:

Oh and we start shipping this little cuties this week!
Electronic Stepped Attenuator | ePot.V3 Mini | Tortuga Audio

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Old 25th August 2020, 12:59 PM   #29
CaptainWatt is offline CaptainWatt  United States
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The "ePot.V3 operation and controls" document has now been posted in our "Docs" section on the website. The document explains how the controls work for both the new V3 Max and Mini electronic stepped attenuator / preamp controllers.

The operation/controls documentation complements the ePot.V3 Mini hardware documentation which is also listed below. We are still working on editing a similar document for the Max.

Mini/Max Operations/Control Manual - ePot.V3 Mini & Max operation & controls | Tortuga Audio

Mini Only Hardware Manual - ePot.V3 Mini hardware manual | Tortuga Audio
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Old 27th August 2020, 07:29 PM   #30
CaptainWatt is offline CaptainWatt  United States
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Hi All,

1st round of product pics for the ePot.V3 Max Stepped Attenuator & Preamp Controller are in. The Max switches up to 6 single-ended inputs directly and has built-in LDR calibration.

Product Page: Electronic Stepped Attenuator | ePot.V3 Max | Tortuga Audio

Cheers,
Morten

Click the image to open in full size.
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