This is a Masco Audiosphere amplifier model A-10 from 1959. It has been carefully cleaned and restored to fully functional condition. This amplifier includes excellent vintage vacuum tubes. The tubes are a 5Y3GT rectifier, 6AT6 and 6AU6 pre-amp tubes and a 6L6GC power tube. This amp works perfectly and sounds amazing.
Condition notes:
Chassis shows wear with some chips and scratches - pretty nice overall Faceplate also shows wear with some marks, slight bends and scratches Power transformer cover was cleaned to remove rust spots then waxed Bottom plate is included but has some scratches and minor corrosion in spots Masco sticker on the back has some stains and other wear but is still legible There is no cage for this amp
Restoration Details:
New grounded power cord was installed using original strain reliefs New CE Electronics Electrolytic Capacitor Can New Output Transformer from Musical Power Supplies with 4 Ohm and 8 Ohm output taps Ceramic disc capacitors are the originals New Solen coupling capacitors New Spraque Atom bypass capacitor Pots and switch are original Control knobs are original in excellent condition New Switchcraft input jack Some resistors were replaced with NOS Allen Bradley resistors The output jack is the original 6-hole Amphenol socket The output plug is a NOS 6-pin Amphenol unit wired for 8 Ohms The speaker wire is new heavy gauge wire The speaker plug is a new heavy-duty G&H unit Cork foot pads have been added to bottom panel to prevent scratching of the speaker cabinet and for extra grip
Comments on the performance of the amp:
I love this amp. Of all the Masco amps I own or have owned I like the smaller Audiosphere models the best. If you are seeking that vintage classic rock tone, this amp delivers it so very well. While testing this amp with my guitar today I had great difficulty turning it off to get back to work. I played it through a few different speakers and it sounds awesome through all of them. My favorite pairing was with a 1-12 cabinet with a vintage Jensen speaker. The A-10 is rated at 10 watts output power and will play plenty loud but it is still manageable in a home jam room or garage. The tone produced while using a humbucker equipped guitar is nice and clean up to about 5 on the volume knob. At around six or seven the Masco magic distortion sound is outstanding and remains great all the way up to 10. I left the phono circuit intact and you can use the phono input to play music from an iphone or similar device, just set your phone to mono sound (settings/accessibility/mono) and use an audio cable with rca connector into the phono jack.
Amp and tubes will be very carefully packaged to prevent damage. Shipping is to continental U.S.A. only. Local pickup is also available in Salt Lake City. Please ask questions if you have them.
