aleph_pcb_red
miniA-with_output

Aleph through-hole PCB Set

$9.00

2 x Main Amplifier PCBs
4 x Output PCBs

Aleph Amplifier PCB parts list (excel sheet)

SKU: ALEPH-TH-PCB Category:

Product Description

Aleph Amplifier PCB Set

Welcome to the product information page for the Aleph Amplifier pcb set.The Aleph amplifier PCB set is scalable and can support multiple Aleph designs:

List of possible configurations
mini-Aleph 2 output devices per channel 10 watts +/- 15vdc rails
Aleph 3 4 output devices per channel 30 watts +/- 25vdc rails
Aleph 30 6 output devices per channel 30 watts +/- 25vdc rails
Aleph 5 6 output devices per channel 60 watts +/- 34vdc rails

Implementation details can be found in the Pass Labs service manuals:
Pass Labs | Downloads

The mini Aleph configuration started with a thread on diyAudio by Grey Rollins, exploring the idea of creating a 10w Aleph. This idea has been expanded on, through starting with the Aleph30 and removing 2 pairs of output devices. This adds the advantages of the Aleph30, in a 10w version: balanced input, higher input impedence, and an improved input network. The original Mini-A thread can be found here:
diyAudio | Original Mini-A thread
For using the PCB set to build a mini Aleph, the 2 output devices are mounted on the main board, and the output boards are not used.

The Aleph 30 configuration is the newest Aleph amplifiers from Pass Labs (now discontinued) and use the same 2 stage design, but offer a higher input impedence. Compared to the Aleph 3, the Aleph 30 uses more parallel devices, which lowers the distortion, improves the damping factor by about 50% and allows for a higher bias current. More information on the Aleph 30 can be found in the owner’s manual:
Pass Labs | Aleph 30 Owner’s Manual
For using the PCB set to build an Aleph 30, the 6 output devices are mounted on the output boards, and Q6, Q7, R19, R22, R27 and R28 are not used on the main board.

Regarding the power supply configuration, 1 power supply is needed for a stereo amp, and for monoblocks, 2 power supply boards are needed. More details are available on the Power Supply PCB page.

Here is a parts list, containing the required components needed for building either a mini Aleph or Aleph 30 using the amplifier pcb set:
Aleph Amplifier PCB parts list (excel sheet)

1 – Aleph Amplifier PCB set consists of:
2 Aleph Amplifier PCBs 2.2″ x 3.5″ [55.9mm x 88.9mm]
4 Output Boards 1.2″ x 3.5″ [30.5mm x 88.9mm]

 

Reviews

There are no reviews yet.

Be the first to review “Aleph through-hole PCB Set”