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Amplifier Modules and PCBs For Sale

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AlexScan

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Joined 2011
JLesterP said:
Changes on PCB: some adjustments on component sizes, added header for external zobel resistor. Better muting circuit. Converted some parts to SMD.
Click to expand...

I know I have read your ebay page.

JLesterP said:
Yes, it uses IPP320N20N3. Lots of output power. No THD measurements yet for coilcraft.
Click to expand...

Ok cool, but have you make some listening of the JLA-800S with Coilcraft ?
Sonic difference with the JA-800D/250D with Coilcraft ?
 
D

Deleted member 148505

Line level signal detect switch now available on my eBay page.

2pcs Blank PCB: Line Level Signal Detect Switch ( Auto Power On-Off ) | eBay

Turns on the relay when it detects an audio signal then turns off after a specified delay which is adjustable through trimmer.
Sensitivity is also adjustable.

Uses 1206 sized SMD parts and a SO-8 IC.

PCB size: 2 x 3.125 in
Power supply: 12V to 15V AC or DC.
 

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D

Deleted member 148505

AlexScan said:
Hello Jlester, sonic difference between the JLA-800S and the JLA-3DS ?
Click to expand...

PFFB IRS2092 based on liteamp has some advantages.

I noticed better cone movement on my Pioneer sub (wired into 2 ohms) with the JLE-3DS PFFB. It has tighter and more defined bass.

Also on PFFB I haven't noticed sonic quality change when I put a tone control on the front end, it's still very transparent and clear.

But I still prefer the sound of pre-filter feedback IRS2092 (JLE-800S) on stereo listening. PFFB's (JLE-3DS) sound is very clean, though there's still some similarities on the sound signature. For PA where lots of signal processing will be used, I think the PFFB is more suitable.
 
A

AlexScan

Member
Joined 2011
JLesterP said:
PFFB IRS2092 based on liteamp has some advantages.

I noticed better cone movement on my Pioneer sub (wired into 2 ohms) with the JLE-3DS PFFB. It has tighter and more defined bass.

Also on PFFB I haven't noticed sonic quality change when I put a tone control on the front end, it's still very transparent and clear.

But I still prefer the sound of pre-filter feedback IRS2092 (JLE-800S) on stereo listening. PFFB's (JLE-3DS) sound is very clean, though there's still some similarities on the sound signature. For PA where lots of signal processing will be used, I think the PFFB is more suitable.
Click to expand...

Ok thanks ... the difference between Pre-Filter FeedBack IRS2092 (JLE-800S)
and Pre-Filter FeedBack of the "liteamp based" is the pre-filter is active with opamp on the JLA-3DS ?
 
D

Deleted member 148505

JLE-2000D is back

JLE-2000D new version 3.1

- For SOIC-16 AUIRS2092S / IRS2092S
- 13pcs SMD parts (0805)
- AGP4233-223 high power inductor

Softstart Circuit V4

- Added onboard resistors.
- Onboard PCB transformer
- 555 timer circuit
 

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