Modded A20 v modded A60

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Latteman
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Modded A20 v modded A60

Unread post by Latteman »

I am fortunate enough to own 2 A20 & 1 A60 (all used prior to my ownership)
The A60 is older- pre Acrylic Casing but still sounds wonderful. It has had several components replaced staying to original spec as possible. The flying interconnect leads were replaced with Ssc- this made a significant impact to its sound bringing depth and speed.
I used this for a long time on the mid & bass drivers with the A20s on the tweeters.
When changing my speakers (driver count) :angry-fire: around I kept the A60 in place and the A20s gathered dust.
Several posts here got me thinking and inspired a bit of research and a small project- I removed the transformer, caps & rectifier from one A20 and grafted it to the output stage of the other A20 splitting the input and output stages- each now with their own power supply. As a precaution I’ve added additional heat sinking but 2 weeks in all is good.
Do I prefer it to the A60- yes I believe it has a ‘clearer / cleaner’ sound compared to the A60- I’m enjoying it immensely.
For reasons of space and it’s ‘cuteness’ I use a P20- I modded the P20 internally with ssc. I only wish I could add a Sa to it.
I realise these Nva products are now used & abused and will not be sold on or traded in but it was always been my intention to purchase new Nva power amps at a later date anyway.
Roll on 2020- get that A60 loaner made 🤑
Analogue Source -
Denon DP47f- Ortofon mc20 supreme
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- IfI stream, Ifi Neo idsd Dac; Tidal / Radio Paradise
Amplification Nva 30vdc mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

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savvypaul
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Re: Modded A20 v modded A60

Unread post by savvypaul »

Latteman wrote: Tue Dec 31, 2019 6:15 pm Roll on 2020- get that A60 loaner made 🤑
I'm listening to one of the new A60s now.

I'm picking Tomasz up from Doncaster Airport on 7th Jan - want me to drop off the A60 on the way?
I am in the hi-fi trade
Status: Manufacturer
Company Name: NVA Hi-Fi
https://nvahifi.co.uk/

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Latteman
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Location: S. Yorkshire
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Re: Modded A20 v modded A60

Unread post by Latteman »

Oh lord- I’ll pm u after new year 👍🏼🥳
Analogue Source -
Denon DP47f- Ortofon mc20 supreme
Ifi Zen Phono
Doug Self balanced Pre amp
Akai 4000DS mk2 R2R
Digital Sources- IfI stream, Ifi Neo idsd Dac; Tidal / Radio Paradise
Amplification Nva 30vdc mono blocks
Speakers Lii Audio F-15 in Open Baffle; Ls6
Weiduka AC8.8- for digital sources
Mini BMU for analog sources

User avatar
savvypaul
Posts: 8635
Joined: Tue Oct 11, 2016 7:14 pm
Location: Durham
Has thanked: 1657 times
Been thanked: 2978 times
Contact:
Great Britain

Re: Modded A20 v modded A60

Unread post by savvypaul »

Latteman wrote: Tue Dec 31, 2019 6:39 pm Oh lord- I’ll pm u after new year 👍🏼🥳
Okey dokey...
I am in the hi-fi trade
Status: Manufacturer
Company Name: NVA Hi-Fi
https://nvahifi.co.uk/

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