FastEddy said:As a great admirer of 41Hz products,
I sure would like to see some pics completed amps
or "step by step assembly",
either of this newer amp module(s) or others.
Hope some person from www.41hz.com reads your post, Eddy
when i went there today (for first time)
i did not know this is a SWEDISH Website/Company
but it is
Lineup - from sweden
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http://www.41hz.com/main.aspx?pageID=133
Attachments
" ... did not know this is a SWEDISH Website/Company ..."
I believe that that would be a net plus ... since many European companies are making some very high quality audio equipment ... Examples: the best FireWire connected DAC / ADC comes from The Netherlands, some of the better DAC chips come from England and Denmark, there are several excellent microphone makers in Europe ... and the European audio consumer market has all but standardized on DVD-A for media, and IMOP, a vastly superior playback scenario for music.
I believe that that would be a net plus ... since many European companies are making some very high quality audio equipment ... Examples: the best FireWire connected DAC / ADC comes from The Netherlands, some of the better DAC chips come from England and Denmark, there are several excellent microphone makers in Europe ... and the European audio consumer market has all but standardized on DVD-A for media, and IMOP, a vastly superior playback scenario for music.
.........
Made in Sweden .. some times not too bad
and Scan-Speak, Vifa & Peerless
are all from our brotherland Denmark: http://www.tymphany.com/
... but California and USA ... gives us a few nice audio things, too
( a few!!! ) )
Made in Sweden .. some times not too bad
and Scan-Speak, Vifa & Peerless
are all from our brotherland Denmark: http://www.tymphany.com/
... but California and USA ... gives us a few nice audio things, too
( a few!!! ) )
Re: Re: nxv500
Thanks for the praise dudaindc
Here are some more specs for the nxv500 module.
310 Watts RMS continuous sine wave into 8 ohms
550 Watts RMS continuous sine wave into 4 ohms
860 Watts RMS continuous sine wave into 2 ohms
Frequency Response 5hz to 300khz
Power Bandwidth 5hz to 100khz
Dampening Factor At 100hz 8 ohms =1300.00 - Output Impedance = 5 milliohms
Dampening Factor At 1khz 8 ohms = 915.00 - Output Impedance = 8 milliohms
Dampening Factor At 10khz 8 ohms = 248.00 - Output Impedance = 32 milliohms
RCA Single ended Input impedance 20k
XLR Balanced Input Impedance 40k
Closed Loop Gain 31dB
Signal to Noise Ratio -120dB
THD+N - TBA
Power Supply Rejection Ratio 105dB
Recommended Linear Voltage Supply +-80 volts DC
Recommended SMPS Voltage Supply +-75 volts DC
Operational Supply Voltage Range +-10v dc to +-95 volts dc
PSU Power Transformer secondary windings 55vac to 60vac (800VA Core)
Printed Circuit Board Dimensions 220mm x 50mm
Recommended Conrad heat sink MF30-10
dudaindc said:
WOW!
I guess I will have to increase my DIY "allowance" soon...
Thanks Anthony!
Thanks for the praise dudaindc
Here are some more specs for the nxv500 module.
310 Watts RMS continuous sine wave into 8 ohms
550 Watts RMS continuous sine wave into 4 ohms
860 Watts RMS continuous sine wave into 2 ohms
Frequency Response 5hz to 300khz
Power Bandwidth 5hz to 100khz
Dampening Factor At 100hz 8 ohms =1300.00 - Output Impedance = 5 milliohms
Dampening Factor At 1khz 8 ohms = 915.00 - Output Impedance = 8 milliohms
Dampening Factor At 10khz 8 ohms = 248.00 - Output Impedance = 32 milliohms
RCA Single ended Input impedance 20k
XLR Balanced Input Impedance 40k
Closed Loop Gain 31dB
Signal to Noise Ratio -120dB
THD+N - TBA
Power Supply Rejection Ratio 105dB
Recommended Linear Voltage Supply +-80 volts DC
Recommended SMPS Voltage Supply +-75 volts DC
Operational Supply Voltage Range +-10v dc to +-95 volts dc
PSU Power Transformer secondary windings 55vac to 60vac (800VA Core)
Printed Circuit Board Dimensions 220mm x 50mm
Recommended Conrad heat sink MF30-10
FastEddy said:As a great admirer of 41Hz products, I sure would like to see some pics completed amps or "step by step assembly", either of this newer amp module(s) or others.
I made a little amp with the 41Hz Amp3. I still have it and use it to compare my own class D amp design to. This is far from fancy, the entire bottom plate became the heat sink.
Terry
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10 watts of power is an awful lot !!!!
for normal sensitivity speakers (87-90 dB SPL)
if the SPL is not enough for your picnic
* SPL = sound pressure level
then you get some Low impedance (4 Ohm ) higher sensitivity Full Range speakers
.. say sensitivity >= 92 dB SPL
Fostex have a good range of different sizes Full Range woofers.
Buy one that can work well in one SMALLER BOX for your portable 'picknic' use.
Try to get one with at least 90 dB SPL and 4 Ohm.
Find some more expert advice in our Full Range forum
http://www.diyaudio.com/forums/forumdisplay.php?forumid=51
for normal sensitivity speakers (87-90 dB SPL)
if the SPL is not enough for your picnic
* SPL = sound pressure level
then you get some Low impedance (4 Ohm ) higher sensitivity Full Range speakers
.. say sensitivity >= 92 dB SPL
Fostex have a good range of different sizes Full Range woofers.
Buy one that can work well in one SMALLER BOX for your portable 'picknic' use.
Try to get one with at least 90 dB SPL and 4 Ohm.
Find some more expert advice in our Full Range forum
http://www.diyaudio.com/forums/forumdisplay.php?forumid=51
DHR-DX TURBO amplifier
.... Hi all ,
Schematic from uncle Carlos M. and PCB by me http://i36.tinypic.com/fp43t0.jpg .Regards alex mm 
.... Hi all ,
Schematic from uncle Carlos M. and PCB by me
http://i36.tinypic.com/fp43t0.jpg .Regards alex mm
