Celestion Pulse 15 Handleiding

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LOADING SPEAKERS INTO YOUR GUITAR CABINET

BREAKING IN YOUR SPEAKER

Brand new speakers usually require a “breaking in period”. Start with a few minutes of low-level

playing or background hum. Next, turn up the power amp volume to full, control the level with the

preamp gain and play with a fat, clean tone. Have the bass and mid up full, and the treble set to at

least half. On your guitar, use the middle pickup position (if your guitar has more than one pickup)

and play for 10-15 minutes using lots of open chords, and chunky percussive playing. This will get

the cone moving, and should excite all the cone modes and get everything to settle in nicely.

ESSENTIAL TOOLS

Here's what you'll need:

1. The combo amplifier/cabinet you’ll be working on and the Celestion speakers you’re going to load into it.

2. A screwdriver to remove the back panel of the combo/cabinet.

3. The appropriate tool for the speaker bolts, for example a multi-wrench, allen key or screwdriver. Note

that this will vary depending on the make of your combo/cabinet so be sure to check first.

4. Pen and paper for making a note of the existing wiring connections.

5. Pliers and electrical tape.

6. Wire cutters/strippers and soldering equipment (required for speakers with a ‘solder only’ tag panel).

STEP 1

Make sure the amp is disconnected from the mains

supply and you have allowed sufficient time for the

tubes (if fitted) to cool down and discharge any

residual voltage if you have used it recently.

Check the terminals - are they ‘push on’ connectors

or ‘solder only’ ?

STEP 2

Remove the back panel from your combo/cabinet

(where fitted) and make a note of which color

wire goes to the + terminal of the speaker.

STEP 3

Disconnect the wires and get them safely out of

the way using tape. Next, ensure the terminals

are cleaned to achieve the best connection.

Undo the bolts, then carefully remove the

speaker(s) taking care not to damage the cone

or anything inside your amp. Careful - you may

find the speaker is slightly stuck to the front

baffle and comes free suddenly. Place the

speaker face down on a flat surface.

STEP 4

Carefully insert and bolt in the new speaker

(take care when handling so as not to damage

the cone). Finger tighten all bolts then tighten

them with the appropriate tool, securing

diagonally opposite bolts in sequence.

Hand tight is fine, this will ensure that you

don't bend the speaker frame.

STEP 5

Connect the new speaker according to the

wiring diagram you made earlier. Make sure

all connections are solid and secure (you may

need to tighten the clips using a pair of

pliers.) If soldering, take precautions to

ensure that hot solder cannot drip on to the

speaker cone – it will cause damage.

Re-check the wiring is correct!

STEP 6

Once you’re confident that the wiring is

correct, plug in and turn on at low volume.

Check for buzzes or anything untoward.

When everything sounds OK, put the panels

back and you’re ready to go.

THE BASICS

1. POWER HANDLING

Speakers must be capable of taking at least as much power as the amp puts out, or you risk damaging

them. So, for a single speaker, pick one with a power rating the same or higher than the amp itself.

For a twin speaker combo the minimum speaker power rating is half that of the amp and for a cabinet

with four speakers it will be a quarter of the amp's maximum power output.

2. IMPEDANCE

Just as important as power rating is impedance - given in Ohms (written - ). If you use the wrong value,Ω

then the amp may be damaged. Ensure that your new speaker has the same impedance as the speaker it is

replacing. So, if you’re taking out an 8speaker, make sure the replacement is also rated 8ΩΩ. (Note - some

vintage speakers are rated at 15Ω, you can use these to replace a 16without fear of damage.)Ω

SAFETY FIRST

PLEASE READ BEFORE ATTEMPTING ANY WORK.

Ensure you have unplugged the amp from the mains electricity supply. Some amps,

particularly those fitted with vacuum tubes, can retain dangerous voltages inside the chassis

after they have been switched off and disconnected from the mains supply. Allow sufficient

time for voltage discharge and tube cooling before following these steps.

Guitar speakers have large magnets which can affect audiovisual equipment including, but

not limited to, television screens and computer monitors. Pick your location carefully and

make sure you have plenty of room in which to work.

Visit www.celestion.com/guitar/loadingyourspeakers for more details

on two and four speaker wiring configurations.

Solder only

Push on

Product specificaties