Mirand TSSA V4 and V8 Lateral mosfet amp - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Vendor's Bazaar

Vendor's Bazaar Commercial Vendors large & small hawking their wares

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 2nd June 2015, 11:02 AM   #1
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
Default Mirand TSSA V4 and V8 Lateral mosfet amp

TSSA V4 and V8 buyers thread.

After a lot work around on the TSSA V4 control panel, the frontend is now ordered and we will receive the frontends end next week.

The front and powerboard is the same. The difference between the TSSA V4 and V8 is only the mosfets.

On the TSSA V8 the current capacity is the double of the TSSA V4. In numbers 63Apeak against 39Apeak. TSSA V8 will also have a bit higher damping factor.

Both amps can now handle +/-75VDC power supply as well as down to ~+/-30VDC. But because of the current capacity the V4 is best for 4 - 8Ohm speaker where the TSSA V8 can handle down to 2Ohm.

The best minimum idle current for TSSA V4 and V8 is 400mA and 800mA. For this reason TSSA V8 requires a larger heatsink.

Some have asked for use of hypex 1200/400 SMPS with this SMPS idle power consumption will at minimum bias for the TSSA V4 be 50W/channel and for the TSSA V8 be 100Watt per channel.

So the heatsink recommendation for using Hypex 1200/400 is:

TSSA V4 <0.6K/W per channel
TSSA V8 <0.3K/W per channel

The prices on the amplifier modules are

TSSA V4 will cost 314€/per channel. + shipping

TSSA V8 will cost 449€/per channel. + shipping

From 4 channel and up there is an discount of 30€ per channel

The early bird price which runs until the 12. june is.

TSSA V4 will cost 254€/per channel. + shipping

TSSA V8 will cost 389€/per channel. + shipping

And again there is an discount of 30€ per channel at 4 or more channels.
Attached Images
File Type: png tssa V4 control board V1.0.png (160.0 KB, 483 views)
File Type: jpg IMG_1542.JPG (626.0 KB, 481 views)
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product

Last edited by sonnya; 2nd June 2015 at 11:31 AM.
  Reply With Quote
Old 2nd June 2015, 11:06 AM   #2
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
Early bird TSSA V4:

Myint67 TSSA v4 x 4 modules
Vitalica TSSA v4 x 2 modules (Paid)
rogerchou TSSA V4 x 2 modules (Paid)
hop.sing TSSA V4 x 2 modules (Paid)

Please let me know if i have forgotten some members...

BR Sonny
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product
  Reply With Quote
Old 2nd June 2015, 11:30 AM   #3
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
Technical specs of the TSSA V4 and V8
  • Size : 170x70x59 LxWxH
  • +/-30 - +/-75VDC supply voltage
  • 1.3MHz Bandwidth
  • Current capacity 39/63Apeak for V4/V8
  • 8 Mosfet per channel (V4 = single die, V8 = dual die)
  • Minimum idle current 0.4A/0.8A for TSSA V4/V8
  • Input can be single ended or balanced
  • All discrete amplifier stages. Input build around two discrete opamps
  • Low noise regulators
  • Connector for external Solidstate relay with DC sense autoshutoff
  • Power rating at +/-75vdc
    8R = 310W (V4/V8)
    4R = 620W (V4/V8)
    2R = 1070W (V8)
    1R = 1800W (V8)
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product
  Reply With Quote
Old 2nd June 2015, 04:17 PM   #4
diyAudio Member
 
Join Date: Oct 2012
so, V4 is not workable for 2R loading?
  Reply With Quote
Old 2nd June 2015, 05:18 PM   #5
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
TSSA V4 will be able to deliver 27Arms.

I forgot to set V4 at 2R load... Sorry
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product
  Reply With Quote
Old 2nd June 2015, 05:19 PM   #6
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
Power rating at +/-75vdc:
8R = 310W (V4/V8)
4R = 620W (V4/V8)
2R = 1070W (V4/V8)
1R = 1800W (V8)
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product
  Reply With Quote
Old 6th June 2015, 06:52 AM   #7
diyAudio Member
 
Join Date: Oct 2012
Quote:
Originally Posted by sonnya View Post
Power rating at +/-75vdc:
8R = 310W (V4/V8)
4R = 620W (V4/V8)
2R = 1070W (V4/V8)
1R = 1800W (V8)
Sonny, thank you very much. According to your suggestion of heatsinks, I guess V4 is not as hot as TSSA 1.7 at the same bias current. May I set bias current higher? 0.8~1A?
  Reply With Quote
Old 6th June 2015, 08:09 AM   #8
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
The heatsink gets exactly as hot as with tssa V1.7 and V1.8...
The difference is that the heatrise In the mosfet is Shared between 4 mosfet and 4 isolation pads. So the resulting temperature margin is better.

I hope it makes sense to you?

BR Sonny


Sent from my iPhone using Tapatalk
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product
  Reply With Quote
Old 11th June 2015, 03:28 PM   #9
sonnya is offline sonnya  Denmark
diyAudio Member
 
sonnya's Avatar
 
Join Date: Oct 2001
Location: Denmark
Early bird TSSA V4:

Myint67 TSSA v4 x 4 modules
Vitalica TSSA v4 x 2 modules (Paid)
rogerchou TSSA V4 x 2 modules (Paid)
hop.sing TSSA V4 x 2 modules (Paid)
Pinnocchio TSSA V4 x 2 modules
Sperrey TSSA V4 x 6 modules

Please let me know if i have forgotten some members...



Control panel assembly today: We will continue tomorrow.

BR Sonny
Attached Images
File Type: jpg IMG_1574.JPG (661.2 KB, 305 views)
__________________
Mirand Audio amps and Dac's - http://mirand-audio.dk/?post_type=product
  Reply With Quote
Old 11th June 2015, 04:50 PM   #10
diyAudio Member
 
Join Date: Oct 2012
Wow, it looks so nice. Thanks you sonny.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
TSSA V1.7 mosfet Current feedback amp module sonnya Vendor's Bazaar 496 4th July 2015 10:20 AM
How to reduce THD20 in a lateral MOSFET amp? danny92 Solid State 12 22nd September 2013 07:20 PM
Lateral Mosfet Amp by Ampslab nodiak Swap Meet 8 5th May 2013 12:24 AM
Question on a Simple Lateral MosFet Amp quinnling Solid State 2 11th October 2011 06:34 PM
For sale: lateral Power MosFet N & P in one case! wimdehaan Swap Meet 0 12th June 2009 09:17 AM


New To Site? Need Help?

All times are GMT. The time now is 09:36 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2