Your Power Block is actually adjustable for either 75 watts X 2 or 150 watts - (I'm taking this information straight from the Owners Manual, which you should be able to easily access on-line).  The ratings read:  75W RMS @ 10% THD per side @ 4 ohms; OR
150W RMS @ 10% THD @ 8 ohms.

You change the power setting via a "Mono Bridge" switch that is on the rear panel of the head.

You're welcome.

Thanks for the input and info.  I'm leaning toward the Frontman myself, as I've played through a Frontman 25R and liked it a lot.  Incredibly nice clean tone for such an inexpensive SS amp.

Hi,

This is my second post here.  I joined, and made my first post, regarding someone's questions regarding a 40+ year old Sears 125XL amp, which happened to be the first serious amp I ever owned.  It's ironic how we can end up coming full circle.  After decades of playing almost nothing but tube amps, I'm looking, within a tight budget, at acquiring an amp more suitable for gigging, than the Peavey Valve King 50-watt 1X12 tube combo I've been playing for the last couple of years.

I figure I can get enough for the Peavey, to move into a SS amp in the 100-120 watt class, with 2X12 speakers.  For value/price, my top candidates are all priced new, between $250 to $350, and some are generally available used, in the vicinity of $150-$250.  So my question is really two-fold.

I should mention that outside of very infrequent efforts at soldering guitar pickups, switches, etc. I am functionally illiterate in terms of electronics.  So, I'm dependent on amp techs, or the retailer when something goes wrong.

When it comes to entry-level SS 100+ watt amps, therefore, should I stick to buying brand-new, from a retailer with a strong return/replacement policy, such as Guitar Center?  Or, am I on reasonably solid ground, buying a 2-4 year old used amp, if, during a 10-15 minute road-test, with my guitar, it behaves itself, doesn't crap out, and tends to hold a reasonably pleasing tone, without undue buzzing, humming, etc.?

Second, since these SS amps are all generically similar in terms of power and speaker configuration, based on others' experience, I am wondering if some of these are more prone to breakdown, or other problems, and therefore should be avoided, while some other model might have a far better record and be therefore, a more desirable alternative to the others.  I really have very little background knowledge of any of these current-day SS amps, and would like to be as sure as possible of not choosing a lemon.

The leading amps I'm considering, include the Fender Frontman 212R,  the Fender Mustang IV,  The Acoustic G120 DSP, and the Behringer V-Tone GMX212 2X60watt Stereo amp.  Members' input would be very sincerely appreciated.  Thanks.

In 1972 I purchased a shiny new Silvertone 125XL piggy-back amp right out of the Sears Catalog,  GOD AM I OLD!!!   

Based on my reading of the original owners manual, and looking at the schematic, I disagree about the power.  I believe that the RMS wattage was 125 watts.  The speakers were 12" Jensens, each capable of handling at least 50 watts RMS.  That sucker was LOUD.  Mine was the model with the 9 sliders, rather than the older, (but very similar) model with the 10 knobs.  My brother bought the older model used, and we used to jam with a young drummer, at Mike's Drum Shop in Santa Barbara.

The reverb, as I recall, was good and strong.  I don't think it was the same unit, as in the older knob model.  It sounded better, and there was plenty for me.  The Tremolo worked to absolute perfection.  I really liked the amp, but in later years, after getting married, and the kids coming along, I sold it and bought a Silverface Fender Princeton Reverb amp, which I loved for a number of years.

The piezo-type reverb was used by Danelectro, in their notorious "Reverb Box", of the mid 1960's.  They were horrid units.  I'm pretty sure the one on my amp was an improved design, as I remember the reverb on my brother's knob model sounded like crap.