Manley Labs 'Retro' SE/PP 300B Monoblock Tube Amplifiers (pair)

Description: A pair of truly rare and extraordinary, warm and rich, audiophile amplifiers! Fully professionally serviced in 2024 and performing flawlessly. Full specs and history below… Included with your amps are the original power cables and owner’s manual. Shipping is free in the USA. These are currently located in Los Angeles, and you are welcome to pick them up, or arrange to see them in person. The Audio Blue Book value for these amps is $14,800. ____ SPECIFICATIONS: Vacuum tubes:Output 2 x 300BDriver 1 x 6SN7Input 1 x 6SL7Rectifier 2 x 5U4Output Power @ 1kHz with 5 dB Feedback in SINGLE-ENDED: 11 Watts @ 3% THDOutput Power @ 1kHz with 5 dB Feedback in PUSH-PULL: 24 Watts @ 1.5% THD.Input Sensitivity with 5db Feedback SINGLE ENDED: 700mV for Maximum PowerInput Sensitivity with 5db Feedback PUSH-PULL: 450mV for Maximum PowerInput Sensitivity with 5db Feedback SINGLE ENDED: 165mV for 1V output into 8 OhmsInput Sensitivity with 5db Feedback PUSH-PULL: 160mV for 1V output into 8 OhmsInput Impedance: 100 kOhm, direct coupled.Actual Output Impedance SINGLE ENDED: 2.25 OhmsActual Output Impedance PUSH-PULL: 1.86 OhmsOptimum Speaker Load (switchable): 4 to 12 Ohm range appropriate for 4 & 8 Ohm speakers;12 to 20 Ohm range appropriate for 16 Ohm speakersDamping Factor SINGLE ENDED: 3.5Damping Factor PUSH-PULL: 4.3Freq. Response with 5 dB Feedback in SINGLE-ENDED: 15 Hz - 15 kHz ±0.5 dB (measured at 5 watts)Freq. Response with 5 dB Feedback in PUSH-PULL: 10 Hz - 20 kHz ±0.5 dBGAIN SE Mode 0dB Feedback Setting: 30 dBGAIN SE Mode 10dB Feedback Setting: 20 dBS/N Ratio: SINGLE ENDED: 83.5dB Ref. 1W; 2.83v//8 Ohms,20KHz BW; 5dB FB.S/N Ratio: PUSH-PULL: 85.4dB Ref. 1W; 2.83v//8 Ohms; 20KHz BW; 5dB FB.Dynamic Range: SINGLE ENDED: 94dB Ref. 3% THD; 20KHz BW; 5dB FB.Dynamic Range: PUSH-PULL: 99.5dB Ref. 1.5% THD; 20KHz BW; 5dB FB.Maximum Power consumption: 240 Watts (idle)Factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.Operating Mains Voltage changeable with power transformer re-wiring and fuse value change.Mains Fuse 100-120VAC operation: MDA 3 Amp SLO-BLO Ceramic Time-Delay fuseMains Fuse 220-240VAC operation: MDA 1.5 Amp SLO-BLO Ceramic Time-Delay fuseB+ Fuse: MDA 400 mA SLO-BLO Ceramic Time-Delay fuseMains Voltage Frequency:Dimensions: W=8.5", D=23", H=9"Minimum Mounting Surface Dimensions: Feet Footprint = W= 7.5" D= 18"Shipping weight: 41 lbs. eachBadge Illumination: Units produced before 7/2003 use 8V, 0.3A "Fuse-Lamp" 1/4" X 1 1/4"____ HISTORY: These amps were originally purchased directly from Manley Labs by my Gestalt teacher E. Erikson, who played Jazz to the migrating whales from his cliffside perch at the Esalen Institute. I am the second owner. The full, rich, warm tones of these amps are truly awe inspiring, but are unfortunately impractical for my life as parent of a young child in a small Big Sur cabin. The amps were professionally serviced by Audio Rehab in Los Angeles earlier this year (2024), and are performing flawlessly. There is a little aesthetic ware, a few spots and peeling back sticker, which I did my best to represent in the photos. These are rare and exquisite treasures, and I hope they find a loving home with a kindly audiophile.___ PROCESSING / SHIPPING: Shipping within the USA is free via FedEx. International shipping will be calculated at check out. In order to ensure secure packaging and shipping please allow for up to an extra five days of processing time.

Price: 11950 USD

Location: Los Angeles, California

End Time: 2024-09-19T18:37:07.000Z

Shipping Cost: 0 USD