Antique Sound Labasl mg-spm40I'm selling my pair of upgraded Antique Sound Lab ASL MG-SPM40 mono tube amps from Response Audio. These are around six years old. The amps are in perfect working order and I'm only selling them to...1400.00

Antique Sound Lab asl mg-spm40 [Expired]


no longer for sale

I'm selling my pair of upgraded Antique Sound Lab ASL MG-SPM40 mono tube amps from Response Audio. These are around six years old. The amps are in perfect working order and I'm only selling them to downsize my HiFi collection. I've really enjoyed them and to my ears they sound warm and wonderful.

These came originally from Bill Baker of Response Audio who upgraded the stock ASL units. Here is a quick rundown of what was performed on these amplifiers from Bill:

* All main coupling (signal path) capacitors upgraded to V-Cap Teflon capacitors x 8 pieces (these are about $100 each)
* Innerstage capacitors upgraded to SoniCap Gen II capacitors x 2 pieces
* Power supply diodes upgraded to "Ultra Fast - Soft Recovery" x 8 pieces
* Following resistors upgraded
* Cathode resistors
* screen grid resistors
* grid stop resistors
* signal ground resistors
* bias stage resistors
Both amps are in excellent shape and perform beautifully. Power output is 50WPC in pentode mode and 25WPC in SET mode.

Here are some specs of the stock unit BEFORE Bill Baker from Response Audio upgraded the amps throughout.

Model MG-SPM40
Output Power 50W
Frequency responsible at 1 W 23Hz - 42KHz
Frequency responsible at full power 11Hz - 38KHz
Distortion at 1W < 0.5%
Distortion at full power < 3%
S/N Ratio / Noise level mV 80 db /2mV
S/N Ratio with A weighting 92 db (0.5mV)
Input impedance 100K
Output Impedance 8,16 Ohm
Input sensitive 1V
Power request 145W
Fuse 5A Slow blow
Power cord - Detachable /Fixed Detachable
Input Sockets RCA Gold Plate
Output Termininal 5 Way Gold Plate Heavy duty
Chassis Finish Iron with powder paint
Front Panel Finish Aluminium /Gold /Silver or Black Anodizing
Tube Complement EL34 x 4,6SN7 x 2
Dimension W x D x H in mm 385 x 275 x 210
Shipping Dimension W x D x H in mm 350 x 470 x 315
Net Weight /Kg 17.2Kg

Offered for local pick-up only.
Seller Information

jbarreto 

Last 12 months
All-time18100.0%

Member since August 2008

Items from this seller