ALLO RELAY ATTENUATOR Volume Relay Attenuator for Piano DAC and Boss DAC

ALLO RELAY ATTENUATOR Volume Attenuator for Piano DAC, Piano 2.1 DAC, Boss DAC

Average votes for this product
4.7 / 5

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Reference : 12076
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49,92 €tax excl.

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Shipping date: 20-09-2019.

Orders placed before 1pm (GMT+1) will be shipped the same day (working day).

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ALLO Relay Attenuator

Switchable volume attenuator


The Relay Attenuator Allo.com provides low distortion analog volume management for Raspberry Pi-compatible ALLO DACs. Equipped with 24-resistor, high-precision film (Omron) technology, this switching volume controller is ideal for demanding amateurs desiring a non-destructive volume bringing dynamic, timbre and sound scene to realistic size even at low level.

The Relay-Attenuator also has a gold-plated stereo RCA input and output that will allow you to connect your USB DAC to your amplifier.

Mitigation measures by step

This attenuator is compatible with the following DACs for PI3:

Warning: Alonethe Allo Relay Attenuator and its screws are supplied. The Raspberry Pi and Piano 2.1 are sold separately.


TECHNICAL CHARACTERISTICS

  • DAC Compatibility: Piano, Piano 2.1, Boss DAC (On Raspberry PI 3)
  • Isolation I2C and GPIO
  • Resistors: Brand SUSUMU Precision 0.1% 25ppm
  • Nominal value: 10k
  • Compatible with Raspberry Pi3 and Sparky SBC
  • Can operate autonomously

Allo Relay Attenuator

 
Data sheet
Channel2 channels (Stereo)
 
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Average votes
4.7 / 5
3 reviews
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Note :
 5/5
Date :
Addendum
..in clicking away from the page, I noted that the resistors are susumu. If that is indeed the case, they have a very good reputation for noise
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This review has been posted for ALLO RELAY ATTENUATOR Volume Relay Attenuator for Piano DAC and Boss DAC
Note :
 5/5
Date :
Looks good
I have yet to wire the device in, but it seems to have a good build quality. I brought it in order to connect to a pi. It isn't going to be just a plug in, but equally a pretty simple lash up of power and i2c. I found The documentation less than clear, but in reality all those connectors are just pass through, so 4 / 5 wires should do it. A true audiophile would reject those SMD resistors, but for me a better that 100db signal to noise ratio is more than acceptable. I note the other advice here on popping when changing levels. This is a general problem with switched ladders, but I note that the Dutchman whose design is almost identical to this one has an algorithm for reducing the intrusiveness .... All I need to do now is compare his solution with that used for this board
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This review has been posted for ALLO RELAY ATTENUATOR Volume Relay Attenuator for Piano DAC and Boss DAC
Note :
 4/5
Date :
Does its job with some limitations
It works pretty well if volume changing is done gradually 1 step at time.
Increasing volume of many steps at once generates a "pop" noise on the output.


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