LD91 SET Mono Block Amp

LD91 SET Mono Block AmpThe LD91 MonoMax rises to new heights. The output transformers are used in some extreme high end amplifiers, these are wound 'perfect lay' using paper and cores from Japan. 'Perfect lay' winding allows for tighter packing of layers and less inter winding capacitance so that a larger core can be used without sacrificing high frequencies. The larger core is desirable to prevent saturation of signal at high power levels and during transients. Bass plays deeper but at full rated power. The power transformer comes with all the voltage taps necessary for the advanced builder. Now with 2.5v / 5v / 7.5v 3A power tube filament taps, 400V and 200V B+ supply. 5V 4A taps for rectifier, 6.3v and 10v 1A for the driver tube heater supply. In addition, new DC filament supplies are standard along with the FCUPS (film cap universal power supply). 30w Wire wound adjustable cathode resistor for the power tube is standard as is the FCUPS for power supply. So... the sky's the limit here.

* Power output, 300B: 7-9W x 2 RMS @ 1KHZ Class A depending on circuit
* Frequency response: 12Hz to 47KHz (-3 dB@5W) (20hz to 20k -0.5db)
* THD: <1% (5W@1KHz)
* Signal to noise: 90dB or better (0.55mv at the speaker outputs)
* Input sensitivity and impedance: 0.5V, 100K (310A driver is .5v)
* Output impedance: 8, 16 ohm. 4 ohm by special order only
* Power: 110/120/220/230/240V AC +- 10%, 50Wx2
* Dimension (mm): 370(L) x 240(W) x 210(H) (not including/including transformer)
* Weight: 13.5Kg per chassis = 27Kg
* Shipping Weight: 32Kg per set of 2
* Standard Tubes (priced separately): 300Bx2, 310ax2, 5Z3PAx2 or 274b, 300B
* NEW: Power transformer is low output impedance EI type, custom made with imported cores.
* Output transformer is larger imported core and 'perfect lay' windings.
* Speaker outputs: 0/4/8/16ohms
* Non-magnetic chassis

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