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Maxon OD9 Overdrive

$210.00 $159.00
By Maxon | SKU: RGS-MAX-OD9 |

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 k...- Read More

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  • 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

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What type of payments do you accept?

We accept payments from MasterCard, Visa, Discover, American Express and PayPal. You can read about our financing options here.

What is your shipping policy?

We will ship completed orders Monday-Friday. Orders placed and paid before 1:00pm. PST will ship that same day. All completed orders after the cutoff time will ship the following business day. RGS does not ship on Saturday or Sunday.

What is your return policy?

We offer a 30 day Exchange policy for new purchases. We ask that you please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received and we will exchange it for any product on ours site. Please note that we do charge a $5 dollar exchange fee to cover our shipping cost. We are a small business and do not offer a cash refund. We cannot take returns on sealed product. We do not accept returns for guitars and amplifiers under any circumstances. Unfortunately we also cannot cancel orders or pre-orders. We are happy to exchange for another product if you are no longer interested in the new release or backordered items

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