How Often Should Preamp Tubes Be Replaced?

Which 12ax7 sounds best?

Best 12AX7 For Audio Genalex Gold Lion ECC83/B749 is the ultimate in current production 12AX7.

Gold Lion ECC83 delivers a full sonic range with excellent articulation.

Like all Gold Lion Tubes, Gold Lion ECC83 is built with meticulous quality, which makes it ideal as the premium upgrade for any audio 12AX7 application..

What is the best tube preamp?

The 7 Best Tube Preamps Under $1,000 That Are Worth the MoneyModelPriceKey FeaturePro-Ject Tube Box DS$$$Capacitance: 100 / 220 / 320 pFCambridge Audio CXA81$$$80 Watts Per ChannelMarantz PM8006$$$70 watts per channelVincent PHO 701$$$Two-chassis MM/MC phono stage1 more row

Can bad preamp tubes cause volume loss?

Use the wooden part to tap each of the preamp tubes and main power tubes. A good tube will be a dead ‘thud’ sound, so if you hear one that has a high ringing rattling sound, that’s the bad tube. Bad tubes will make volume drop and tone sounds will be dulled. When a tube goes bad, this is exactly what happens.

How long should I let my tube amp warm up?

20 to 30 minutesIt is important, too, that the warmup that you give your tube amp is very thorough. If they are not warmed up properly, the tone of your playing will not be as good as it ought to be. As a rule of thumb, your tube amp needs to be warmed up for 20 to 30 minutes at least before you can start playing your guitar.

How long do preamp tubes last?

2 – 3 yearsPreamp Tubes are generally at their best 2 – 3 years. Power Tubes are generally at their best 1 – 1.5 years. Rectifier Tubes are generally at their best 3 – 5+ years.

How do I know if my preamp tubes are bad?

Preamp Tubes. Preamp tubes usually cause problems through noise or microphonics. If noise, you will hear hiss, crackling, popping or similar issues. If you hear squeal, hum or feedback, it is typically a microphonic tube. Noise from microphonic tubes will typically increase with a volume increase.

Is it bad to leave a tube amp on for a long time?

There is nothing wrong with leaving on your amp for a long time. It doesn’t wear out the tubes faster than if you were to play it for eight hours straight. Probably even less, because you don’t actually play it, but just leave it. Imagine how long before a show the equipment will be standing on stage, ready to play.

Do preamp tubes affect tone?

Really overdriving a preamp tube and hitting it hard creates richer harmonics, distortion, and sustain. Backing off the gain can give you a shimmery clean sound. You can think of the preamp tubes as the tone shapers of your guitar amp.

Is it bad to leave your amp on?

Your electronics take a small thrashing every time you plug and unplug them from the power. … But a purely electronic piece like a power amp or preamp are better left powered on at all times – with but few exceptions. So, keep the lights on with your equipment – it helps everything live longer and sound better.

How long should you let a tube amp cool down?

3 minutesWhen powering off, the tube generally needs 2 – 3 minutes to cool down.

Do preamp tubes need to be replaced?

Yes, some tubes fail much earlier than that, but many indeed last that long. … Preamp tubes are more compact and don’t have to work as hard, so they tend to last even longer, or seemingly forever if you’ve been waiting for them to go bad so you don’t need any excuses to try a new set.

How do I know when my tubes need replacing?

A: These are the most common signs that tubes need replacement: Excessive noise (hiss, hum) including squealing or microphonic tubes. Loss of high end. … A muddy bottom end; Sounds like there is too much bass and note clarity is lost. Erratic changes in the overall volume. … The amp doesn’t work!