This is a Special Edition made by Manley for Upscale Audio, the SE changes the front face plate from Manley Industrial Purple to a more conventional Black (better to match other components in your rack).The SE also has upgraded the stock Russian EH 6922 tubes to a rare Phillips PCC88 Tubes (with less than 500 hours), Platinum Grade For Phono Preamp. Large Halo Getters The NOS Phillios PCC88 are from Holland, vintage tubes. This is the large O-shape getter, said to sound the best of all. These have a bit of midrange warmth, typical of an Amperex tube. These tubes typically sell each for $79.99 to $99.99 (the $99.00 price reflects the cost of the Platinum Grade used in phono preamps). Check or PayPal (add 4.0% if using PayPal). Flat rate shipping in continental USA adds $50.00. BID WITH CONFIDENCE I HAVE 100% POSITIVE FEED BACK ON AUDIOGON AND EBAY USERNAME: ALFA_LOVER FROM THE INTERNET: Like the Manley Steelhead, each channel employs the two triode sections of a 6922 for amplifying duties with highly accurate passive RIAA equalization networks. In the Chinook, the signal is then directly coupled to another 6922 dual triode serving as the output driver in a White Follower configuration. This output stage circuit is a favorite because of its super-low output impedance and beefy current-driving capabilities. It can drive long cable lengths and difficult loads, tube or solid-state. Bring it on. No wimpy cathode followers here! Setting up the Chinook couldn't be easier. There are two internal settings for optimal gain: 45dB for Moving-Magnet cartridges and 60dB for Moving-Coil cartridges. Set it and forget it! The back panel contains DIP switches for adjusting the input resistive and capacitance loading values. 31 possible options between 26 and 800 Ohms plus 47k Ohms and 7 capacitive loading choices between 50 pF and 350 pF provide flexibility to match any cartridge and fine tune the tone. Audiophile-grade and time-proven componentry is used throughout, embodying Manley's dedication to seductive sonics, combined with the reliability that professionals around the world depend on. At just about a quarter of the price of the revered Steelhead preamplifier, the Chinook's focus is on elegance of design, careful execution, efficient construction, and appreciable quality. Designed and built in California, the Chinook exemplifies Manley's commitment to our local community and to a simple, clean, and quiet signal path. The Chinook demonstrates the supreme linearity of vacuum tubes while providing the flexibility needed to embrace any turntable setup. Everything from the most exotic 180 gram audiophile pressing to 25 cent thrift-store classics will be reproduced accurately and musically. Features and Specifications Vacuum Tube Complement: 6922 x 2 (gain stage) plus 6922 x2 (output stage). Any 6DJ8, 7308, ECC88 types may be used.
Unbalanced Input and Output connections via Manley Teflon®& Gold plated RCA jacks
Automatic Mute Timer: On initial power up output jacks are muted for approximately 45 seconds. Automatic mute circuit allows tubes to warm up and circuitry to settle. At power down, output jacks are immediately muted.
Input Termination Capacitance (MM/MC): 3-position user-selectable capacitor values of 50pF, 100pF, and 200pF yield resultant combinations of: 50, 100, 150, 200, 250, 300, and 350pF
Moving Magnet Input Impedance: 47k Ohms, fixed
Moving Coil (MC) Input Impedance: 5-position user-selectable resistor values of 50, 100, 200, 400, and 800 Ohms. There are 32 possible loading possibilities.
Gain: Internal DIP switches select 45dB or 60dB
Deviation from RIAA curve: Less than ± 0.5 dB from 20Hz to 20kHz at any gain setting. Typically less than ±1dB from 10Hz to 100kHz.
Distortion (THD+N) (47k Ohm Input Termination, 45dB gain, 1kHz sine, 0dBu output): Typical 0.010% THD+N, into 100k Ohm load, BW = 100Hz-22kHz
Distortion (THD+N) (47k Ohm Input Termination, 45dB gain, 1kHz sine, 0dBu output): Typical 0.030% THD+N, into 600 Ohm load, BW = 100Hz-22kHz
Dynamic Range (MM input, Gain set to 45db, 200 Ohm source): 91dB @ 1kHz, 0.1% THD+N, BW = 22Hz-22kHz
Dynamic Range (MM input, Gain set to 45db, 200 Ohm source): 107dB @ 1kHz, 1.0% THD+N, BW = 22Hz-22kHz
Noise Floor at 45dB gain setting with shorted input: -84 dBu, A-weighted
Noise Floor at 60dB gain setting with shorted input: -75 dBu, A-weighted
Maximum Input at 45dB gain setting with 20 Ohm Source Z @ 1kHz into 10 kOhm load: 250mV RMS = +34.5 dBu @ 1% THD+N BW=22Hz-22kHz
Maximum Input at 60dB gain setting with 20 Ohm Source Z @ 1kHz into 10 kOhm load: 40mV RMS = +34.2 dBu @ 1% THD+N BW=22Hz-22kHz
Maximum Output: +37dBu @ 1kHz, 1.5% THD+N into 100 kOhm load
Output Impedance: 91 Ohms
Minimum Recommended Load: 2500 Ohms
Internal Power Supply: Fully regulated linear B+, Heater, and control voltage rails.
Operating Mains Voltage: Units are built for original destination country's mains voltage: 100V, 120V, or 220-240VAC as indicated on the serial number badge.
Power Consumption in Standby mode: 1 Watt (8.0mA @ 120VAC)
Power Consumption: 42 Watts (345mA @ 120VAC)
Mains Voltage Frequency: 50~60Hz
Power Transformer: Toroid contruction for low radiation.
Mains Fuse for 100V-120V operation: 500mA SLO-BLO size 5mm x 20mm
Mains Fuse for 220V-240V operation: 250mA SLO-BLO size 5mm x 20mm
Standby Transformer Fuse for all voltage operation 100V-240V: 10mA, SLO-BLO, MDL type size 1/4" x 1 1/4"
Badge Lamp: LED illumination
Dimensions: W=19", L=11", H=3 1/2"
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