• Önskelista
  • se
    Välj din butik Select Store
    Alla länder All Countries
  • 0

Den stora Thomann Online-Rådgivaren: PA-Amps

8. Working with your Amp

How loud can you go? In fact, in terms of the sound out front, you can keep your power amp turned up full, and regulate the actual sound level through the mixer - provided, of course, that your speakers are up to the job.

As we have seen, the key question is concerned with impedance and power ratings. An amp optimised for low impedance performance will not be able to deliver its maximum RMS power rating when connected to higher impedance speakers. Getting the match right also involves using the correct cables, because they too introduce resistance within the circuit – thick, low impedance cable kept as short as possible works best.

You should also consider how you are connecting your speakers. In parallel, that is each speaker receiving a direct signal from the amp, each additional speaker actually progressively lowers the impedance presented to the amp. A pair of 8 Ohm speakers connected in parallel for example, will represent 4 Ohms of resistance to the amplifier, not 16 Ohms as you might think.

However, if you connect your speakers in series, or one after the other in a single (electrical) line from the amp, each additional speaker adds to the total resistance. Three 8 Ohm speakers, for example, would give 24 Ohms of resistance. There are also various series/parallel configurations possible, for which the calculations are rather more complicated!

Placing the Power Amp

Distance equals resistance, as far as power amps are concerned. The further the amp is from the speakers, the more loss of signal there is, with consequent detrimental effects on the sound. You should use short cables with low impedance, and a power amp that sits as close to the speakers it is serving as possible – save your long cable runs for balanced line-level signals.

A rack is the best way to stow your amp, not least because it makes it easier to transport. Key points to remember when choosing your rack are:

  • The depth of your amp, and the requirement for space for any other rack units.

  • The weight of the amp - do you need a rear rack rail to help distribute the load?

  • The strength and practicality of the rack - will it take the weight, and is it easy to move? (Castors with brakes are essential!)

  • Cooling requirements - remember to leave some space around the amp – separating multiple amps with vented blanking panels is ideal.
Din kontaktperson
PA
Tel +49-9546-9223-35
Fax +49-9546-9223-24
Hot Deals Beställ en gratis Hot Deal!

Över 8.250.000 musiker prenumererar redan på Thomann Hot Deals. Börja prenumerera gratis och få tillgång till mer än 400 aktuella erbjudanden!

ett Thomann-fan
Wie immer zuverläßig und unkompliziert. Weiter so !!!
okänd, 10.10.2014

PA-Amps översikt

Elektron Digitakt Millenium ST-95 tc electronic Flashback 2 Delay Vox Adio Air GT Harley Benton CST-24T Ocean Flame Vox AC2 Rhythm Bass Denon DN-300C MKII ADJ Pro Event Table tc electronic M100 Novation Circuit Mono Station Rockboard LT XL Power Bank Harley Benton HB-40B 2017
(4)
Rekommenderat
Elektron Digitakt

Digital Drum Machine 8 Internal audio tracks, 8 Dedicated MIDI tracks, 1 Multimode filter per audio track, 1 Assignable LFO per track, Delay and Reverb send effects, Built-in sequencer, Support for sampling, OLED display, 64 MB Sample memory, 1...

Till produkter
749 €
(1)
Rekommenderat
Millenium ST-95

Standing Aid Ideal for keyboardists, guitarists and DJs, Seat height, backrest and footrests individually adjustable, Seat upholstery and backrest with cover, Seat height adjustable from 545 - 965 mm, Padded seat, Weight: 6 kg, Material: Steel, Colour: Black, Suitable...

Till produkter
79 €
Rekommenderat
tc electronic Flashback 2 Delay

Effect Pedal for Electric Guitar Delay, The new TC MASH technology turns the foot switch into a pressure sensitive expression controller, New Ethereal Delay algorithm, For mono use, the stereo input can be used as a Tap Tempo input...

Till produkter
185 €
(5)
Rekommenderat
Vox Adio Air GT

Modelling Electric Guitar Combo Power: 50 W, Equipped with: 2x 3"speakers for a wide stereo sound, Bluetooth allows wireless playback of music and remote control via app, VET Modelling technology for authentic amp sounds, Up to 23 amplifier models,...

Till produkter
299 €
Rekommenderat
Harley Benton CST-24T Ocean Flame

Electric Guitar Deluxe series, Body: Mahogany, Top: Flamed maple, Set-in neck: Mahogany, Fretboard: Roseacer, 24 frets, Pearloid Dot fretboard inlays, Scale: 635 mm, Nut width: 42 mm, Pickups: 2 Wilkinson WHHB Alnico Open humbuckers, 1 Volume control, 1 Tone...

Till produkter
226 €
Rekommenderat
Vox AC2 Rhythm Bass

Vox AC2 Rhythm Bass, Basscombo, 2x3" Speaker, 2 Watt, 5 effects, 3 selectable sounds normal flat and scoop, inputs for bassguitar and aux in, headphone output, 81 rhythm patterns, tempo 40-240 BPM, power supply via 6 AA batteries (alkaline or...

Till produkter
69 €
Rekommenderat
Denon DN-300C MKII

Denon DN-300C MK II, CD/USB Player, Slot-In CD - Drive, USB Audio Player, USB plays MP3 audio file formats, 3,5 mm Jack Input, Display, symmetric XLR Output, stereo RCA Output, adjustable speed ±15%, Random, Repeat and Power-on-Play, IR Remote, 10-key...

Till produkter
239 €
Rekommenderat
ADJ Pro Event Table

ADJ Pro Event Table, Compact and collapsible, Lightweight, around 18 kg, Functional and professional looking, table height: 880mm, dimensions table 1200x580mm; Dimensions (LxWxH): 50” x 24” x 45.5” / 1270 x 610 x 1155 mm, Dimensions for own Logo (WxH):...

Till produkter
325 €
Rekommenderat
tc electronic M100

tc electronic M100; Stereo Multi-Effects Processor; 16 TC-Effects including reverb, delay, chorus, flanger, phaser, rotary speaker, pitch shifter and multi-effects; Edit and Tap/Select function; 24-bit AD/DA converters; Stereo Input Level control with LED level indication; Mix Balance and Output Level...

Till produkter
111 €
Rekommenderat
Novation Circuit Mono Station

Paraphonic Analogue Synthesizer 2 Oscillators with individual control of sync and tuning parameters, Filter can be used as high, low or bandpass filters with 12 or 24 dB, Three distortion modes, Monophone and paraphone modes with individual glide control,...

Till produkter
522 €
Rekommenderat
Rockboard LT XL Power Bank

Mobile power supply for effects pedals 3 High-capacity lithium-ion batteries, Battery capacity: 6600 mAh, Can still be used during a recharge, Can also be used for charging smartphones and other USB devices, On / Off switch, 2x 2.1 x...

Till produkter
49 €
Rekommenderat
Harley Benton HB-40B 2017

Harley Benton HB-40B 2017, compact electric bass combo amplifier, 40 watt, 10" custom voiced speaker, TEC tube-emulating circuit, instrument input, gain control, integrated compressor with LED indicator, 3-band equalizer (bass, parametric middle, treble), volume control, headphone output, aux-input for play-along...

Till produkter
99 €
Feedback Har du hittat ett fel eller vill ge oss feedback om denna sida?

Vi ser fram emot att höra från dig och kommer att lösa eventuella problem så snart vi kan.

Lämna kommentar. Ange din e-postadress.