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akltam's 3-way Electronic crossover. System
IP Address: Last Update: November 06, 2015 at 22:03:33
Amplifier: 3 way minimalist electronic tube crossover.

I have 3 out of these 6 mosfet modules from Anthony Holton from Tasmania, Australia, were burnt up. These SMD modules are so compactly design and the output mosfet are so close to these SMD device, that the heat sink must be very efficient. I suspect these modules burnt up due to thermal failure of the output MOSFET device.

I am now building all tube output amplifiers for my 3 way electronic crossover system. I will update this section soon. 2015.

The below description is no longer valid as half of the modules are burnt up after few months use and Holton is not responding to my email for any remedy action.

Bass - DIY using module NXV800L 4 pair of double die output MOSFET. Monoblock construction with 1.2KW toroidal transformer separate windings for driver and output stage. The module is supplied by Anthony Holton from Australia.

Mid - DIY NXV200R2 one pair of double die mosfet output. 300W toroidal transformer each channel.

Treble - DIY NXV200R3 one pair of double die mosfet powered by a 300VA toroidal transformer each channel.

Preamplifier (or None if Integrated): Pre-amp DIY active minimalist electronic crossover using DA3 tube anode loaded the Lundahl transformer LL1660.
Speakers: Active system - DIY

Setup One.
Tweeter - Scan Berylium Revelator.
Midrange - Volt VM752 3 inch dome.
Bass - 2xSCAN 8565 10 inch bass

Setup two.
Tweeter - Raven One.
Midrange - Dynaudio Esotar M560 Mid
Bass - 2xSCAN 8565 10 inch bass

Other combination. D21-D54, Sea Magum - D76.

Other bookshelf: with passive DIY Crossover

Scan 9700 - Scan 18w 8545-11
Scan 66200 ring revelator - 15W/8530K01
Scan 70000 ring revelator - 18W/8741 illuminator 7inch bass.
Roger LS3/5A
CD Player/DAC: Bluray DVD player - Philips BD960

DVD Player - Onkyo DV-SP1000

Marantz 7003 SACD player - modified with Lundahl output transformer.

DAC kit from PearAudio - ESSabre 9018 Dac
Turntable/Phono Stage: None.
Other Accessories/Room/Misc.:
Speaker Cables/Interconnects: Non expensive type normal cables. Also DIYed using Cello cables.
Other (Power Conditioner, Racks etc.): Isolation transformer for the CD player and Pre-amp and active crossover.
Room Comments/Treatments: Carpet
Music Preferences and Comments:
Music Used (Genre/Selections): Classical, Jazz, Easy Listening POP.
System Goals/Comments: To achieve high fidelity by assemble the best availalbe speaker units and through DIYing and with active system to drive it.
System Strengths: Active 3 way system using minimalist approach.
System Weaknesses: Rooms can be bigger to accomodate the twin bass speaker.
Video/HT System: Integrated
TV/Projector: Panasonic AE3000 using 100 inch OS screen.
Processor/Receiver/Amplifiers: Onkyo 706 receiver.

Quad 405II

Papporth M100

DIY twin pair 6550 tube amp with lundahl interstage transformer.

URL Link: http://akltam.8m.com

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