The rich and punchy sound of valve-based amplifiers is set to make a
comeback. Hi-fi maker Quad Electroacoustics of Huntingdon, Cambridgeshire, is
celebrating the millennium by reviving the mono valve amplifiers it launched in
the 1950s. Early hi-fi fans used to buy pairs of them to produce stereo, but
each unit delivered only 12 watts, which wasn’t enough to drive loudspeakers
designed for high-power transistor amplifiers. But the new Quad II-Forty
(http://www.quad-hifi.co.uk/ Quadclass1.htm) uses a more efficient transformer
to deliver 40 watts. The price should be less than that of second-hand
originals.
More from New Scientist
Explore the latest news, articles and features
Earth
Huge crater in Australia may be the oldest impact structure on Earth
News
ÎçÒ¹¸£Àû1000¼¯ºÏ
You should turn off fans when it's too hot – but how hot is too hot?
News
Humans
Elite Maya people had teeth placed in a cave far from their tombs
News
Mind
Parenting may permanently improve brain health for mums and dads
Features
Popular articles
Trending New Scientist articles
1
Woman with Alzheimer's starts conversing again after taking psilocybin
2
Unapproved gene therapy for boosting longevity is set to go on sale
3
Parenting may permanently improve brain health for mums and dads
4
You should turn off fans when it's too hot – but how hot is too hot?
5
Huge crater in Australia may be the oldest impact structure on Earth
6
How menopause radically changes the brain – and what happens after
7
Elite Maya people had teeth placed in a cave far from their tombs
8
Can prebiotics, probiotics or postbiotics help your ageing microbiome?
9
Most portable air conditioners suck – but there's an easy fix
10
Mysterious ‘cold blob’ in the Atlantic suggests the AMOC is weakening
