Tube Guitar Heads finder
  • in stock items only
  • compare products
Customer Comments

Great serviceand value. Never had a problem with anything I've purchased from you in the past. Grand job lads and lasses!

philipxxxelin@livexxx.uk on 06.05.2013

Online-Guide Guitar Amp Heads
Stack or Combo?

 

Since the Fifties, two basic types of
AmplifierA device for increasing the power of a signal by taking power from a supply and shaping the output to match the input signal.
amplifier
setup have been available - the separate
AmpereUnit of current; the amount of electricity flowing through a conductor. One Ampere is equal to the flow of 6.25x10^18 electrons through a conductor in one second.
amp
or ‘head’ and speaker setup (known as a ‘stack’), and the combination
AmplifierA device for increasing the power of a signal by taking power from a supply and shaping the output to match the input signal.
amplifier
or ‘combo’, where both are housed in a single unit.

Marshall Stack

Most
AmpereUnit of current; the amount of electricity flowing through a conductor. One Ampere is equal to the flow of 6.25x10^18 electrons through a conductor in one second.
amp
manufacturers make both combos and stacks - in fact the same design is often released in both forms. The main reason for separating the
AmpereUnit of current; the amount of electricity flowing through a conductor. One Ampere is equal to the flow of 6.25x10^18 electrons through a conductor in one second.
amp
and speaker
CabinetThe housing for a loudspeaker, often abbreviated to "cab".
cabinet
is a practical one - guitar amps contain some pretty heavy components. Guitar
CabinetThe housing for a loudspeaker, often abbreviated to "cab".
cabinets
usually use ten or twelve-inch speakers - 2x12” is generally the practical limit for combos, whereas most stacks employ one or more 4x12”
CabinetThe housing for a loudspeaker, often abbreviated to "cab".
cabinets
. Picture Jimmy Page or Eddie Van Halen on stage, and your mental image probably features a Marshall
StackA form of guitar amplification, generally associated with rock music, in which the amplifier circuitry ('amp') is separate from (and usually placed on top of) one or more speaker cabinets ('cabs').
stack
with two 4x12” cabs. Escalating
Volume1) In audio and music, the loudness or amplitude of a signal. 2) In computing, a fixed amount of storage space, addressed as a single entity ('C:', 'D:' etc). A physical drive may contain more than one volume, but a single volume may also span more than one drive!
volume
levels among stadium rock bands in the Seventies and Eighties
LEDLight Emitting Diode: an electronic component that emits a narrow spectrum of light (single colour) when an electric current flows through it, used for many display/indicator applications including instrument panels, power indicator lights, audio meters and flat panel displays. Like all diodes, LEDs allow current to pass in one direction only.
led
to the common sight of a whole row of these on stage, though it’s not unusual for one
CabinetThe housing for a loudspeaker, often abbreviated to "cab".
cab
to be miked and fed to the PA system, while the rest of the cabs are empty and there purely for show!

There is something about the sound and feel of playing through a
StackA form of guitar amplification, generally associated with rock music, in which the amplifier circuitry ('amp') is separate from (and usually placed on top of) one or more speaker cabinets ('cabs').
stack
that you don’t quite get with a combo – not just the sheer
Volume1) In audio and music, the loudness or amplitude of a signal. 2) In computing, a fixed amount of storage space, addressed as a single entity ('C:', 'D:' etc). A physical drive may contain more than one volume, but a single volume may also span more than one drive!
volume
level (some combos have more than enough for most gigs), but the sense of solidity and ‘chunkiness’, particularly in the bottom end, which results from the amount of
AIRSome artists and producers believe that AIR - Always In Record - is a valuable technique, because it can capture moments of musical magic that may otherwise go unrecorded. It simply means that the tape or hard drive never stops running during a session.
air
that four or more speakers can move.

Another advantage of the
StackA form of guitar amplification, generally associated with rock music, in which the amplifier circuitry ('amp') is separate from (and usually placed on top of) one or more speaker cabinets ('cabs').
stack
is that some of the speakers are raised to near the guitarist’s ear level. While a combo placed on stage projects well to the audience, guitarists sometimes struggle to hear themselves, particularly on a small stage where their ears may be much closer to the cymbals than to the knee-height guitar amp! This often results in guitarists turning up too loud without knowing it. The situation can be improved by mounting the
AmpereUnit of current; the amount of electricity flowing through a conductor. One Ampere is equal to the flow of 6.25x10^18 electrons through a conductor in one second.
amp
on an angled stand, but these are not always tremendously stable where large combos are concerned.

Stacks are also inherently more flexible - the same head can sound very different depending on the speaker
CabinetThe housing for a loudspeaker, often abbreviated to "cab".
cab
used. Various factors have an effect, including the make and model the speakers themselves, and whether the
CabinetThe housing for a loudspeaker, often abbreviated to "cab".
cab
is open or closed at the back.

If the advantages of a
StackA form of guitar amplification, generally associated with rock music, in which the amplifier circuitry ('amp') is separate from (and usually placed on top of) one or more speaker cabinets ('cabs').
stack
are not for you, you may want to
ReturnA 'return' is a desk input that brings back audio originally output for processing. There are two common types: the insert, where the whole channel signal is interrupted and sent directly out to a compressor or similar processor and then returned back to the channel, usually before the EQ stage; and the auxiliary send and return where only part of the signal is sent for processing and the return mixed together with the original signal.
return
to the contents page and check out our Online Advisor on combos.

 

[<< previous page] [next page >>]

 

Contents:

[Contents] [History] [Transistors vs Valves Today] [Valve Amp Basics] [Stack or Combo?] [Cabinet Types] [Hotdeals] [Conclusion and Feedback]