What is the value of PSRR for new 1.4 module?
Will be the schematics available? At least some simplified if not the full one.
Thanks.
Will be the schematics available? At least some simplified if not the full one.
Thanks.
Regarding using one Hypex SMPS3kA400 instead of two SMPS1200A400 (to save money, but still have enough power):
It seems that 3kA400 is also unregulated, so this is good for FO. I only noticed one difference compared to 1200A400 in datasheets. 3kA400 is not resistant against bus pumping, so not convenient for powering all classD amplifiers working "in one phase". But do I understand it correctly, that this issue is not a problem for this FO class AB amplifier?
It seems that 3kA400 is also unregulated, so this is good for FO. I only noticed one difference compared to 1200A400 in datasheets. 3kA400 is not resistant against bus pumping, so not convenient for powering all classD amplifiers working "in one phase". But do I understand it correctly, that this issue is not a problem for this FO class AB amplifier?
@Cresnet
I found that you offer UNregulated 1kW SMPS, what is the price and delivery time (to EU)? Any datasheet?
Thanks
I found that you offer UNregulated 1kW SMPS, what is the price and delivery time (to EU)? Any datasheet?
Thanks
@PAX1
Currently I have this 600W version
1- * Shutdown input (needs to short that input to activate the function) .
2- * Standby input, needs to apply 5VDC to that input in order to keep the SMPS into sleep mode.
3- * 12VDC FAN Output
4- * +-15VDC Regulated output
5- * +-24VDC Unregulated output
* Display output, so you can put power and the fault LEDs to front panel of your amplifier, if you wish
Regards
Attachments
As read in other thread, SMPSs NOT using synchronous rectifierare are better (sounds better) for class AB amplifiers. And it seems you are offering such SMPSs. But the voltage (above) is not convenient for the FO amp, so do you plan to make a more convenient SMPS for FO? (Voltage +- 50-63 V)
Those voltages you see are the aux voltages to spice something else like pre amp etc.You just have to say which output voltage you need.
Cresnet,am I right?
I am sorry, forgot to mention those are the standard voltages, in ADDITION to the main one, witch is anywhere from +-40VDC to +-100VDC.
+-40
+-47
+-53
+-61
+-70
+-90
Regards
Hi L.C.
What's the input impedance of version 1.4 ?
Was wondering if it's possible to adjust it to 100K in order to use an LDR attenuator as volume control.
What's the input impedance of version 1.4 ?
Was wondering if it's possible to adjust it to 100K in order to use an LDR attenuator as volume control.
First One v1.4 calibrations in progress
Hi Guys
First batch of 12 pcs. send out to the ones already have FO (local and abroad users) in chassis to perform upgrades. Next week we'll start with regular deliveries to all new orders. Some calibrations pics attached.
L.C.
Hi Guys
First batch of 12 pcs. send out to the ones already have FO (local and abroad users) in chassis to perform upgrades. Next week we'll start with regular deliveries to all new orders. Some calibrations pics attached.
L.C.
Attachments
Hi LC.
I sent you the order of 2 pieces of FO 1.4M but get no response. Please can you add me to the list?
Thanks.
I sent you the order of 2 pieces of FO 1.4M but get no response. Please can you add me to the list?
Thanks.
By default is 10 k parallel to 100 pF but it can be easily altered let's say to 47 k not to degrade s/n ratio too much. 😉
First One v1.4 deliveries starts from now on
To all asking and sending e-mails, no worries guys, couple of hundreds modules ordered. I'll gradually start sending offers and replies to all shown interest, so please be patient, all of you will get the First One amps soon.
Thank you all for such enormous interest.
To all asking and sending e-mails, no worries guys, couple of hundreds modules ordered. I'll gradually start sending offers and replies to all shown interest, so please be patient, all of you will get the First One amps soon.
Thank you all for such enormous interest.
