Aerial amplifiers can be very useful if your signal reception is not quite up to scratch. They are used to improve the performance of your T.V. or radio equipment. If your T.V. picture is 'grainy' or in the...
Chinese valve or tube amplifiers - are they any good? Well, I've tried out 2 of them from Hong Kong and the answer in a nutshell is they are absolutely brilliant and easily beat much more expensive transisitor...
A question I hear a lot. Do I need to have my Valve amplifier biased? So What is Bias. Well to put it simply the bias of a Valve amp is set by adjusting the grid voltages to set the idle current of the output...
Matching Amplifers To Speakers When you're matching a Power Amp to a PA Speaker, a good rule of thumb is to pick an amplifier that can deliver power equal to twice the speaker's continuous IEC power rating....
Quad 33/303 Amplifier General These amplifiers were made from 1967 and had a production run of about 15 years. They were one of the best amplifiers around at that time for both design and technical...
If you are thinking about purchasing a vintage Akai tape recorder I though a few tips on things to look out for /common faults might be useful. Akai recorders were the very top end of the domestic market in...
Read this carefully if you are tempted to buy these shiny speakers. The Matrix website that gives the technical details for these speakers (and suggests that thay have a retail value of $3998 a pair) is part...
Voc Rock Guitars Audio Reviews on ECC83 12AX7 Pre amp tubes. Essentially there are only 3 major tube manufacturers remaining in the world today. We decided to put the 3 most popular tubes manufactured by these...
Ideally you should pick an amplifier that can deliver power equal to twice the speaker's continuous IEC power rating. This means that a speaker with a "nominal impedance" of 8 ohms and a continuous IEC power...
The rule of thumb I use is simple. For speaker wire, buy the fattest / thickest wire you can afford, that is to say the cable with the greatest cross-sectional area ( usually shown in square millimetres ( such...