Salisbury, MD, United States
About this listing
THE GUITAR MAN STORE 1013 SOUTH SALISBURY BLVD SALISBURY MD 21801open m-sat 10 am to 6pm We are a Authorized Maxon Dealer for the USA !!!
Power Supply is not included !!!
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OVERDRIVE (OD-9)
Maxon’s version of classic TS-9 Tube Screamer
More Drive and Output than OD808
NJM (JRC) 4558 Op Amp
True Bypass Switching
The tone that made Stevie Ray Vaughan famous
While the OD808 may have been the first overdrive circuit of its
kind, it was the OD-9 that cemented this sound in the history of Rock
& Roll guitar.
Looking at the OD-9’s circuit, you’ll realize that this is not some
redesign being cleverly marketed as a reissue – this is THE original
OD-9 (TS-9) circuit, yet with the addition of true bypass switching.
Even the PC board is the same one that Maxon’s been using for the past
30+ years, complete with empty slots where parts for the FET switching
circuit have been left out!
Like the original, the current production OD-9 features the NJM (JRC)
4558D Op Amp – an essential component for authentic “TS” tone. The NJM
is smoother sounding and less compressed than other Op Amps, offering
superior sound quality with low noise.
The absence of the FET switching circuit gives the OD-9 some added
output and a slightly more open sound than the OD808, making it perfect
for the classic rock tones that it helped to define.
If your future plans include a meteoric rise to rock & roll
stardom, then rely on the legendary tones of the OD-9 to fuel your
ascent.
The OD-9 is a true-to-spec reissue of the legendary 1980’s
OD-9/TS-9 circuit, with the addition of true bypass switching for clean,
uncolored tone when bypassed.
TECH TALK:
Input is fed into a 2SC1815 emitter/follower transistor to optimize
the signal’s impedance structure. From here it’s on to the first
section of an NJM 4558D Op Amp – NJM is the company formerly known as
the Japan Radio Corporation (JRC) – the legendary manufacturer that
designed and built tons of these components in the late 70’s/early 80’s.
In this non-inverting Op Amp there are diodes in the feedback loop
that clip the signal gradually as well as a High-Pass filter that keeps
low frequencies from being distorted as much as high frequencies – the
classic “808” configuration that creates the tone we all know and love.
After this is a passive LP filter and then an active tone stage that
uses the other half of the Op Amp to create a HP filter that brings back
frequencies cut by the inter-stage LP filter. After the tone stage
it’s through the volume pot, another E/F 2SC1815 to provide a low
impedance output and then the true bypass switch.
The OD-9 features Mechanical True Bypass switching via a Fujisoku 4PDT switch – input signal is sent to ground when bypassed.
Input Impedance: 500K Ohms
Input Jack: 1/4 inch standard phone jack
Output Impedance: 10K Ohms or less
Output Jack: 1/4 inch standard phone jack
Outputs: 1
Equivalent Input Noise: -114 dB or less (input shorted IHF-A weighted)
Maximum Output Level: 0 dBm
Maximum Gain: +40 dB (at 1.5 KHz)
Controls: Drive, Tone, Level
Switch: Normal/Effect (true bypass configuration)
Power Supply: 9V Manganese dry cell battery (6F22) or special AC adaptor
Power Voltage: DC9 V (Battery) / DC10 V (AC-adaptor)
Current Consumption: 6 mA (9 V) / 7 mA (10 V)
Dimensions (whole): 74 mm (W) x 124 mm (D) x 54 mm (H)
Weight: 580 g
Accessories: 9V Manganese dry cell battery (S-006P) x 1
Warranty Card: x 1
User's Manual: x 1
Price$179
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from Salisbury, MD
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