SS2400 - 400W X 2 Diy Completed

[adas]

Hi Guys ,
for the past couple of months I have been working on a amp design and its finally complete. Man it was some hard work sweat and tears , but the final outcome has been very pleasant. The listening impressions have been phenomenal too , the lows are powerfull beyond comparison , while the mids are clear and very upfront , while the treble is ever-present and soothing on the ears.




thanks
Aniket Das

SS2400 - STEREO POWER AMPLIFIER SPECIFICATIONS​
Topology	Class-AB
Channels	2
Power Output
4Ω SCD (Single Channel Driven)	440W
8Ω SCD	240W
4Ω BCD (Both Channel Driven)	400W
8Ω BCD	220W
Frequency Response	10Hz - 25kHz
Signal to Noise Ratio	> 95dBr
THD+N. 4Ω, 8Ω. 1kHz	< 0.001% (-3dB)
Minimum Recommended Load Impedance (per channel)	4 Ohms (which equals one 4 Ohm load or two paralleled 8 Ohm loads).
Damping Factor	> 400.
Input Sensitivity	1V.
Gain	40 dB.
Input Impedance	22 kOhms.
Input Connections	Unbalanced (RCA); one each per channel
Speaker Output Connections	Audiophile grade 5-way binding posts.
Power Requirements	230 VAC @ 50 / 60 Hz
Status LEDs	Green - Lights up at -10db Output Green - Lights up at -3db Output Yellow - Lights up at 0db Output Red - Lights up at Clipping Red - Lights up to indicate a fault condition.
AC Power switch	Rocker switch (switches AC main power).

 

[reachkalyan.kr]

Is it SMPS based ?

 

[adas]

Is it SMPS based ?

Nope there is a massive 1200W toroid inside that box

 

[reubensm]

amazing build!

 

[VSTEREO]

Wow.. looking really awesome. Congrats Aniket.

 

[drlowmu]

Nice build.

It is a very cool-looking amplifier.

The one obvious to me thing I do see, that will hold you back sound quality wise, is the type of speaker binding posts used. I would target them first, as a necessary parts upgrade.

Generally, you do not ever want to use speaker binding posts that have any sort of plastic parts on them. Plastic is a terrible terrible sonic degrade.

The most neutral and best sounding of speaker posts, that I am aware of, are the Cardas CCGR, and in your case, you would want to use their shorter length ones, used with a metal chassis' thickness.

Do not ever wildly over-tighten Cardas CCGRs with a wrench and high leverage, as you can strip their threads. Apply human feel and human discretion.

Have fun.

drlowmu

 

[Prodigy]

Killer bro. Looks awesome. Congratulations

 

[Jeanpher]

Awesome, Great Job Aniket.....

 

[adas]

Great Job Aniket ! I am awaiting your versatile active crossover / low pass filter for bass duty.

Yes , it's been a long time I was busy with so many other things will post an update to you over what's app

 

[lifewater]

Fantastic built Aniket. Best wishes

 

[spirovious]

Nope there is a massive 1200W toroid inside that box

Congratulations.
Speaker out terminals Horizontally drilled would have been little better than vertical(+/-) if using direct speaker wires. With bana plugs no issue.

 

[flat_listener]

Nice build.

It is a very cool-looking amplifier.

The one obvious to me thing I do see, that will hold you back sound quality wise, is the type of speaker binding posts used. I would target them first, as a necessary parts upgrade.

Generally, you do not ever want to use speaker binding posts that have any sort of plastic parts on them. Plastic is a terrible terrible sonic degrade.

The most neutral and best sounding of speaker posts, that I am aware of, are the Cardas CCGR, and in your case, you would want to use their shorter length ones, used with a metal chassis' thickness.

Do not ever wildly over-tighten Cardas CCGRs with a wrench and high leverage, as you can strip their threads. Apply human feel and human discretion.

Have fun.

drlowmu

Superb amp and great build.... what is the trafo secondary rating for this?

 

[drkrack]

Hi Guys ,
for the past couple of months I have been working on a amp design and its finally complete. Man it was some hard work sweat and tears , but the final outcome has been very pleasant. The listening impressions have been phenomenal too , the lows are powerfull beyond comparison , while the mids are clear and very upfront , while the treble is ever-present and soothing on the ears.




thanks
Aniket Das

View attachment 55936View attachment 55937View attachment 55938View attachment 55939View attachment 55941View attachment 55943View attachment 55944View attachment 55946View attachment 55947View attachment 55948View attachment 55949View attachment 55950View attachment 55951View attachment 55952View attachment 55954View attachment 55955

SS2400 - STEREO POWER AMPLIFIER SPECIFICATIONS​
Topology	Class-AB
Channels	2
Power Output
4Ω SCD (Single Channel Driven)	440W
8Ω SCD	240W
4Ω BCD (Both Channel Driven)	400W
8Ω BCD	220W
Frequency Response	10Hz - 25kHz
Signal to Noise Ratio	> 95dBr
THD+N. 4Ω, 8Ω. 1kHz	< 0.001% (-3dB)
Minimum Recommended Load Impedance (per channel)	4 Ohms (which equals one 4 Ohm load or two paralleled 8 Ohm loads).
Damping Factor	> 400.
Input Sensitivity	1V.
Gain	40 dB.
Input Impedance	22 kOhms.
Input Connections	Unbalanced (RCA); one each per channel
Speaker Output Connections	Audiophile grade 5-way binding posts.
Power Requirements	230 VAC @ 50 / 60 Hz
Status LEDs	Green - Lights up at -10db Output Green - Lights up at -3db Output Yellow - Lights up at 0db Output Red - Lights up at Clipping Red - Lights up to indicate a fault condition.
AC Power switch	Rocker switch (switches AC main power).

Looks Fantastic Aniket
Congratulations.

Is it possible to make a 3 Channel design with Similar Wpc ?

 

[adas]

Looks Fantastic Aniket
Congratulations.

Is it possible to make a 3 Channel design with Similar Wpc ?

Yes shouldn't be a issue

 

[NewBee2020]

Hi Guys ,
for the past couple of months I have been working on a amp design and its finally complete. Man it was some hard work sweat and tears , but the final outcome has been very pleasant. The listening impressions have been phenomenal too , the lows are powerfull beyond comparison , while the mids are clear and very upfront , while the treble is ever-present and soothing on the ears.




thanks
Aniket Das

View attachment 55936View attachment 55937View attachment 55938View attachment 55939View attachment 55941View attachment 55943View attachment 55944View attachment 55946View attachment 55947View attachment 55948View attachment 55949View attachment 55950View attachment 55951View attachment 55952View attachment 55954View attachment 55955

SS2400 - STEREO POWER AMPLIFIER SPECIFICATIONS​
Topology	Class-AB
Channels	2
Power Output
4Ω SCD (Single Channel Driven)	440W
8Ω SCD	240W
4Ω BCD (Both Channel Driven)	400W
8Ω BCD	220W
Frequency Response	10Hz - 25kHz
Signal to Noise Ratio	> 95dBr
THD+N. 4Ω, 8Ω. 1kHz	< 0.001% (-3dB)
Minimum Recommended Load Impedance (per channel)	4 Ohms (which equals one 4 Ohm load or two paralleled 8 Ohm loads).
Damping Factor	> 400.
Input Sensitivity	1V.
Gain	40 dB.
Input Impedance	22 kOhms.
Input Connections	Unbalanced (RCA); one each per channel
Speaker Output Connections	Audiophile grade 5-way binding posts.
Power Requirements	230 VAC @ 50 / 60 Hz
Status LEDs	Green - Lights up at -10db Output Green - Lights up at -3db Output Yellow - Lights up at 0db Output Red - Lights up at Clipping Red - Lights up to indicate a fault condition.
AC Power switch	Rocker switch (switches AC main power).

Congratulations!!! Looks stupendous..Enjoy your new addition!!

 

[srinisundar]

Congrats..Looks very good and fantastic build.

 

[sashijoseph]

Thoroughly neat and professional job Aniket.

I like those status LEDs on the faceplate.

 

[Beginner_N]

Great job with design. Waiting for videos in action.
Can you please share details of heatsink supplier?

 

[adas]

Great job with design. Waiting for videos in action.
Can you please share details of heatsink supplier?

Akash heatsink Pune

 

[Passive_audio_enthusiast]

Nice build.

It is a very cool-looking amplifier.

The one obvious to me thing I do see, that will hold you back sound quality wise, is the type of speaker binding posts used. I would target them first, as a necessary parts upgrade.

Generally, you do not ever want to use speaker binding posts that have any sort of plastic parts on them. Plastic is a terrible terrible sonic degrade.

The most neutral and best sounding of speaker posts, that I am aware of, are the Cardas CCGR, and in your case, you would want to use their shorter length ones, used with a metal chassis' thickness.

Do not ever wildly over-tighten Cardas CCGRs with a wrench and high leverage, as you can strip their threads. Apply human feel and human discretion.

Have fun.

drlowmu

Can you explain how plastic binding post degrades the sound? Isn't the contact points inside still metal ? Also what metrics do we have to Quantify the quality differences between binding posts ?