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Audio Research Reference 750 SEL Mono Amplifier

Audio Research Reference 750 SEL Mono Amplifier

The SEL is the last version of the 750-series, produced in a limited edition of ten pairs. Using the latest and best parts available, the SEL version includes 23 new wires and 26 new capacitors as part of a stunning sonic transformation. The best vacuum-tube amplifier in the world just got better.


HK$971,500.00
HK$680,000.00
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Description
***Products are sold online and in-store simultaneously. The stock quantity may not be updated in the online system in time. ***
***Our team will contact you for confirmation.***
***Goods in stock will be handled and sent within 1-3 working days. Replenishment takes about 2-4 weeks.***


POWER OUTPUT
750 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 750 watts, below .04% at 1 watt. Approximate actual power available at “clipping” 850 watts (1kHz). (Note that actual power output is dependent upon both line voltage and “condition” i.e. if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
POWER BANDWIDTH
(-3dB points) 15Hz to 150kHz.
FREQUENCY RESPONSE
(-3dB points at 1 watt) 1 Hz to 200 kHz.
INPUT SENSITIVITY
4.6V RMS Balanced for rated output. (24 dB gain into 8 ohms.)
INPUT IMPEDANCE
200K ohms Balanced.
OUTPUT TAPS
4, 8, 16 ohms.
OUTPUT REGULATION
Approximately 0.5dB 16 ohm load to open circuit (Damping factor approximately 17).
OVERALL NEGATIVE FEEDBACK
13dB.
SLEW RATE
20 volts/microsecond.
RISE TIME
1.5 microseconds.
HUM & NOISE
Less than 0.2mV RMS – 110dB below rated output (IHF-A weighted, input shorted, 16 ohm output).
POWER SUPPLY ENERGY STORAGE
Approximately 1300 joules.
POWER REQUIREMENTS
105-130VAC 60Hz (200-270VAC 50Hz) 2100 watts at rated output, 2400 watts maximum, 800 watts at “idle”.
TUBES REQUIRED
8 Matched pair KT150 Power Output; 1 6550WE Regulator; 1 6H30 Regulator Amplifier; 1 matched pair KT150 Driver; 1 6H30 follower.
DIMENSIONS
13.5″ (34.3 cm) W x 23″ (58.4 cm) H x 20.8″ (52.8 cm) D. Handles extend 1.5″ (3.8 cm) forward and rearward.
WEIGHT
170 lbs. (77.2 kg) Net; 395 lbs. (180 kg) per pair shipped weight.
Shipping & Payment

Delivery Options

  • Self pick up at showroom - Unit 1010-1012, Block B, Seaview Estate, 4-6 Watson Road, Fortress Hill, HK
  • Special arrangement of delivery method (Please contact our staff)
  • Ship with other orders
  • S.F. Express - EF Locker Pickup (Freight Collect)
  • S.F. Express - Circle K Store Pickup
  • S.F. - Business Station
  • S.F. Express - 7-11 Store Pickup

Payment Options

  • FPS
  • Octopus
  • In-store Payment
  • Bank Transfer
  • Alipay (HK)
  • WeChat Pay
  • Credit Card
  • Apple Pay
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