The following will be a comparison of 3 Fender Champ amplifiers. A 1967 Fender Blackface Vibrochamp, 1973 Fender Silverface Champ, and a 2006 Fender Champion 600.
1967 Fender BF VibroChamp
5 Watts
Volume
Treble
Bass
Input 1 and 2
Selectable Vibro Channel
Vibro Speed
Vibro Intensity
12AX7 preamp tube
6V6 power amp tube
5Y3 rectifier tube
Weber 8" 4 ohm replacement speaker
1973 Fender SF Champ
5 Watts
Volume
Treble
Bass
Inputs 1 and 2
12AX7 preamp tube
6V6 power amp tube
5Y3 rectifier tube
Original 8" 4 ohm Oxford 8ev ceramic speaker
2006 Fender Champion 600
5 watts
Volume
Inputs 1 and 2
External speaker output
12AX7 preamp tube
6V6 poweramp tube
Solid state diode rectifier
Fender 6" 4 ohm ceramic speaker
Price
Prices seem to be on the rise for both the blackface and silverface champ. My vibrochamp I purchased for ~$350 in 2005 and I've seen a few sell for ~$700 now. The silverface champs seem to be going for about $300 now, but some are selling for over $500. My suspicion is that both will continue to rise in price. The Champion 600 sell new for ~$170 which is not bad if looking for a bed room or small recording tube amp.
Upkeep
BF and SF Champs
Upon purchase of a Bf or Sf champ it would probably be a good idea to have it checked out by a tech if it has not been serviced in a few years. Parts where out especially on a 40 year old amp. Up keep really isn't that bad. The Sf champ I just purchased needed new caps and a few resistors to bring it back up to specs. Bill should be about $100 after parts and labor and I shouldn't have to worry about it for another 10-15 years.
I would also recommend changing out the original speaker for a new one, but keep the original one if you decide to sell it. It is not that the original speakers sound bad, but it reality it is 40 year old paper and glue. It seems most people get these to crank them and the problem with this is that if the speaker has dried out over the years you run the risk of damaging it and ending up with a speaker that rattles. Installing a new speaker is more about protecting your investment. Amps with the original speaker usually have more value that amps with non-original speakers. Plus in the mean time you have a speaker that sounds just as good or better and you minimized the risk of devaluing your amp. There are a handful of companies that are making speakers for these little amps. I know of Kendrick, Jensen, and Weber and the prices seem to range from about $40-$90 for replacement speakers.
Champion 600
If purchased new you shouldn't have to worry about any upkeep besides tubes for a few years. Not sure how they will stand the test of time though. If something does go wrong with them it probably would not be worth it to fix like with a bf or sf champ.
Clean
BF VibroChamp
Absolutely beautiful cleans. Everything you could want in a Fender for clean. I don't think having an 8" speaker here is a hinderance to the amp. It adds a little bit of something extra to the high end. Very musical and beautiful clean tone.
SF Champ
Have not had a chance to give it a good once over to give an accurate review. Currently at the techs.
Champ 600
Cleans on their own for this amp sounded decent, but compared to the BF or SF they were anemic. They just didn't quiet have the same magic as the other two. Great practice or recording amp in its own right, but it falls a little short when compared to the other two.
Amp breakup
BF VibroChamp
Great sounding breakup tones, but this amp puts out a lot of volume for it size so I did not play around with this too much. However, it did produce a great sounding vintage breakup tones. Heck this is the type of amp that helped produce those tones.
SF Champ
Have not had a chance to give it a good once over to give an accurate review. Currently at the techs.
Champ 600
This one had pretty good breakup tones, but again when compared to the other two it falls a little short. It will reach break up a little bit earlier than the others though. I believe that fender made input one a bit hotter to help push it into breakup sooner.
IMO all three of these amps would benefit from an attenuator if trying to get the breakup tones at bedroom or apartment levels. 5 watts is LOUD on these amps.
Ability to take pedals
BF VibroChamp
The Vibrochamp did pretty good with a Electro Harmonix NYC Big Muff. Full sounded low end and I could dial out the ice pick highs. Having the treble and bass controls on the amp helped immensely in being able to shape the overall tone and dial in great sounds. This amp did not do so well with an older Dunlop Fuzz Face (red case from about 2003) and I suspect that this was the pedal more than the amp as it was mud city.
The vibrochamp did respond well to overdrive pedals and could be pushed into a really nice sounding breakup.
SF Champ
Have not had a chance to give it a good once over to give an accurate review. Currently at the techs.
Champ 600
This amp was a little specific about which pedals it liked. When running a Electro-Harmonix NYC Big Muff through it did not give very good result. Rolling back on the Big Muff's tone knob to get a fuller sound and it got too muddy. Increasing the tone knob resulted in ice pick highs. This is an instance where some type of tone knob would have been beneficial for for this amp. A larger speaker could have helped too by giving the amp a little more bass so the pedal could have been turned up reducing the ice pick highs and allowing for a fuller sound.
Though it did not like the Big Muff it really loved a BYOC tri-boost. When set for a germanium mid boost this amp really started to shine. It helped push it into a nice vintage style overdrive. My suspicion is that most pedals that push the amp would match really well.
Summary
Overall I do not think the 8" speakers were a hindrance to the champ, but I think the Champ 600 would greatly be improved with an 8" over the 6" speaker. All had great cleans and breakup tone, but the Champ 600 fell short when compared to the others.
If I had a chance to buy all three again, I would. All three are good amps to play around the house or to record with. The only down side is that they can get really loud if trying for natural breakup. Here is where an attenuator or overdrive would come in handy.
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