FET Audio | Hi-End Audio & Electronics

October 14, 2016

BSS Blu-160 tear down photos

Filed under: Pro Audio — Spencer @ 10:35 pm

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Audient ID4 tear down photos + Presonus R65 monitor speaker

Filed under: Pro Audio — Spencer @ 10:19 pm

The USB interface only use USB power to work! AKM DAC and good OPA op-amp. Xmos DSP for USB interface. Sound better than Lexicon IO22 to me. I use a Presonus R65 and it sounds very good for a recording system under window.

The ID input use a Jfet J112 from Fairchild. The output use two pairs of BC327 and BC337 to drive the output.

Its bigger brother ID14 and ID22 use burr brown ADDAC but this little brother only use the AKM parts. Cheap and good for this price point USB interface.

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Tektronix TDS1012B internal photo and firmware update

Filed under: Test Equipment — Spencer @ 10:09 pm

I acquire this old scope cheap and found the firmware is still 22.01. I need to find a small USB drive using CF card of 1GB before I can update the firmware to 22.16.

I do not like the design of the power supply as some regulators are without heatsink and also two of the heatsink is too small. After operating it for 15 minutes in 30 degC room temperature, I can smell the hot air come out from the top of the scope. I bit worry on the temperature of the heatsink and also it is very close to the E-cap which will speed up the aging effect!

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Lexicon IO22 internal Photos

Filed under: Pro Audio — Spencer @ 9:57 pm

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This USB interface has two mic input, two analogy output and one headphone out. The master volume is big and easy to control. The case is die cast and special design for this model. The case is warm when using due to the internal DC converter inductors heating up a lot! PCB design is good but I do not like the layout. All the analogy is on one board and the USB interface and DSP is on other board and only link by a flex cable between them for all the analogy signal. Thus the distance of signal travel is quite long and easy pick up noise. Overall sound is ok but not the best USB interface I own.

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July 17, 2016

BSS BLU-160 Signal Processor BLU LINK for Sales (second set also SOLD)

Filed under: Pro Audio — Spencer @ 3:08 pm

For sales second set BSS Blu-160 signal processor S/N 03000583. Fully working and get from local theatre of government sales. Set with no major visual defect and as show in pictures.

Come with two analogy input cards and two analogy output cards. Total 8 input and 8 output analogy channels. Firmware updated to 86.20.02.

Price is SGD$1300 (about US$935, please pay SGD and only accept paypal) including shipping to worldwide by Speedpost of Sinpost. For Singapore buyer, it will be S$180 less. Note that it will be well packed to protect the set to arrive safely.

Email me for any question.