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FE126En Factory Reflex, a "cruel joke"

Posted 8th February 2013 at 08:14 PM by planet10

The subject of this box has come up before, after a 3rd reply to queries, this blog post,

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One of 2 Fostex factory recommended cabinets. 10.5 litre tuned to 61 Hz. The other is not very good either.

From the sims you can see that with this box any bass response you have will be way down which will exaggerate the FE126's forward midrange and the 7k peak.

Click the image to open in full size.

The top curve is half-space (ie what you would get if you mounted them flush in a wall or approximately what you would get with BSC added). The lower curve is with no filters and a simulated 6 dB of baffle loss. You would need a 2-stage filter to give any semblance of flat response. You would lose some 12 dB of sensitivity and then you run into the very low xMax which means that for...
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Old

The Red Baron DAC Module V4.0 - Out of production

Posted 8th February 2013 at 08:34 AM by dvb projekt
Updated 19th June 2013 at 10:26 AM by dvb projekt

The Red Baron
V4.0



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The evolution brings the following changes

- Separate I2S-GND route to Digital-GND
- Separate Analog Output GND route
- Separate GND route for active divider decoupling caps to Analog-GND
- Modified active divider decoupling pads for better SMD 1210 caps soldering
- Onboard SOT353 footprint for fastest DEM-Synchronizer ICs
- Un-interrupted ground plane
- MOSFET Source/Drain failure corrected


Still on the module

- Direct shunt voltage inputs with shortest onboard traces
- I2S In-/Outputs with shortest onboard traces
- I2S Attenuator and DEM Synchronizer
(by -ecdesigns-)
- Onboard Grounded-Gate MOSFET Current Buffer I/V Stage
(-ecdesigns- MK7 version)
- Separate GND-Trace for DEM-Synchroinizer
- Master/Slave
...
Attached Files
File Type: pdf Red Baron V4.0.pdf (593.7 KB, 407 views)
File Type: zip TDA1541A Project - BOM - for The Red Baron V4.zip (9.3 KB, 162 views)
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