The Ampeg SVP Pro uses 5 valves as follows:
V1: ECC83 (also called 12AX7) preamp valve.
V4: ECC82 (also called 12AU7)
Over time your valves will lose their tone and their power. A brand new set of valves will get your amp sounding better than ever.
We always recommend JJ valves for this pre-amplifier. They are a significant upgrade in quality compared with the original valves supplied with this amp.
So restore the tone, the power and the sparkle to your guitar amplifier. Treat yourself to a brand new set of valves today.
If you have any queries about replacing your valves please get in touch. We have over 30 years experience so one of our team will always be happy to help and advise.
Also, have a look at our FAQ section where we answer the most popular questions we get asked.
If you want to know what your shipping options are, simply add the product to the basket and when you get to the check out it will show you delivery costs, options and delivery times.
Hum problems with some Ampeg SVP Pro models.
Some models of this amp suffer from a low ground hum. Quite a lot of owners suffer from this although not all. This can often be removed by simply replacing the ECC83 in the V5 position with another ECC82.
Other owners have had success by using a Hum Destroyer (Behringer make one) between the SVP and the amp.
It is strange that not all models suffer with it and we have heard many explanations over the years. Some people say it is a ground hum caused by insufficient grounding and others say it is a variation in manufacture as not all amps suffer fro it.
If you do have an annoying hum, swapping the ECC83 in V5 for an ECC82 is certainly a cheap solution and well worth a try. Of course, upgrading to JJ valves may also reduce the hum if your existing valves are not high quality.