I purchased this about 7-8 months ago for home use. Still in new condition. I don't believe these are available in the U.S. The original owner ordered it from London, had it shipped to British Audio Service to have the power changed over to 110 and when he finally received it he no longer had a use for it. I listed the specs below. Mark Acoustic amps are designed for all acoustic instruments including acoustic bass, acoustic guitar, mandolin, violin, cello, banjo, etc. $695 shipped in original box to lower 48 states. Cost of amp alone not including shipping and cost of British Audio services is over $1500 in U.S. CURRENCY! Will consider trade for another bass head or combo, MESA, Ampeg, Eden, etc.

SPEAKER
1x10"
TWEETER
1" HF compression driver with custom horn
BASS PORT
rear
IMPEDANCE
8 ohms
SENSITIVITY
101 dB SPL
SPEAKER POWER HANDLING
200W RMS (AES Standard)
AMP OUTPUT POWER
(analog) 250W @ 4 ohm / 150W @ 8 ohm
FREQUENCY RESPONSE
45 Hz to 20 kHz
CROSSOVER FREQUENCY
3.5 kHz
WEIGHT
23.15 lbs / 10.5 kg
HEIGHT
14.45 in. / 36.7 cm
WIDTH
13.9 in. / 35.3 cm
DEPTH
14.5 in. / 36.7 cm
PREAMP
solid state
ONBOARD DIGITAL EFFECTS
4 reverbs, 2 chorus
http://www.markbass.it/prodotto_dett/foto_72.jpg

Is it a universal power supply now or can it be converted back to 220/240v?

I don't believe it is universal but can always be converted back.

TTT

TRADED!