The Orange Amplification OB1-300 class A/B rackmountable bass amp head lets bass players partake in 'bi-amping' in an easier fashion. For years bassists have been combining guitar and bass amps to remarkable effect, adding harmonics and layers of overdrive from a guitar amp to their core bass tone in pursuit of the ultimate live sound. With OB1-300, there's no need to carry around more than one amp in order to achieve the sound you desire.

The key to the OB1's unique sound is Orange's footswitchable Blend circuit, which adds a veneer of controllable gain and increased harmonic content to the upper registers of the input signal. The lower frequencies and clean signal are left alone, staying warm and clear just as they would be in a 'bi-amped' setup. Depending on where the Gain and Blend controls are set, the possibilities are limitless. Punch in the Blend control to achieve anything from a transparent clean boost, to all-out filthy grind, and everywhere in between.

'Bi-amp' Inspired Design

The OB1 splits the input instrument signal into two separate paths. One side amplifies the clean signal, with all the clarity you would expect from Orange. The other adds up to two stages of distortion to the upper harmonics only, controllable via the amp's Gain knob. These two elements are combined using the amplifier's Blend control which adjusts the mix between clean and dirty. The Blend control can then be remotely engaged or defeated using the optional footswitch.

The Gain and Blend's range allows for almost anything, from a subtle level boost to cut through the mix, added girth and presence at moderate settings to fatten up chorus passages, to fully saturated savagery at the extremes. However you dial it, the OB1 always maintains the critical low end definition, right the way up to the most offensive settings.

Active EQ

The OB1's highly responsive active three band EQ has been meticulously voiced for maximum effect with minimal fuss. The EQ section is located after the Gain and Blend dials take effect, allowing full control over their massive sonic range. The Bass and Middle controls feature +/-15dB of boost or cut, whilst there is a range of +/- 20dB on the Treble control.

All Analog Signal Path

The OB1 Series puts proper class A/B power back on the map. All circuitry is completely analogue, ensuring these amps sound expressive and musical even at ridiculous gain levels.

Rack Mountable

The OB1 Series are our first rack mountable amps, suitable for 19" cases (2 RU). Enclosed in a rugged power coated steel chassis the fascia is finished in Orange's classic 'pics only' styling.

Balanced & Line Outputs

Balanced DI with ground lift and line level outputs for live and studio use.

NOTE: This product was on display in our retail store and has been additionally discounted. Please contact your Sales Pro for more information on this and other products.

Orange Amplification OB1-300 Specifications:

  • Features: Rack mountable (2 RU) 'bi-amp' inspired bass head with footswitchable Gain & Blend controls, active 3-band EQ, balanced DI & line level outputs
  • Front Panel (Right to Left): Instrument Input with Active/Passive Switch, Gain, Blend, Bass, Middle, Treble, Volume, Footswitch Input, Mains Switch
  • Rear Panel (Right to Left): Speaker Outputs (Speakon), 1/4" Line Output, Balanced Output with Ground Lift Switch
    Speaker Output Options: Minimum 4 Ohms: 1x 8 Ohm, 2x 8 Ohm, 1x 4 Ohm
  • Output Power: 300 Watts, Class A/B
  • Finish Options: White powder coated steel chassis (19" 2 RU rackmountable)
  • Unboxed Dimensions (WxHxD): 18.97" x 10.43" x 3.93" (48.2 x 26.5 x 10 cm)
  • Unboxed Weight: 21 lbs (9.5 kg)

Product Specs

Condition:
B-Stock (Used)
B-Stock items are sold by an authorized dealer or original builder, but have been opened, blemished, or used in some manner.learn more
Brand Orange
Model OB1-300 Bass Amp Head
Categories Bass Heads

Accepted Payment Methods

Shipping Policy

Available for local pickup from Verona, WI, United States

Ships from Verona, WI, United States to:

Continental U.S.
$0.00

Full Compass offers free ground shipping on thousands of stock and non-stock (special order) items for orders shipping in the continental US (48 states).

Free shipping may be upgraded to 3-day, 2-day or 1-day shipping for minimal fees. Shipping to Hawaii and Alaska is discounted but not free. Any returned merchandise will have the cost of shipping deducted from any refund or credit.

Please read the following before selecting the shipping option on your order and please call 800-476-9886 if you have any special requests or questions.
**WE DO NOT SHIP TO PO BOXES**. If your credit card billing address is a PO box, please use an approved alternate shipping address.

**NOTE: Most orders over $200 will ship as Signature Required.

**NOTE: As we are required to ship to the address submitted on the order, any redirect requests will need to be authorized by Reverb/Full Compass.

**NOTE: Business days are Monday through Friday, excluding holidays.
Service descriptions are listed as business days. Non-business days are not counted in delivery times.
Orders in stock are typically shipped in 1-3 business days but most ship within 1 day.
There are no shipping pickups on weekends or holidays. If an order is placed over a weekend or on a holiday, it cannot be processed until the next business day.
In most cases your order will ship via UPS Ground Service. For larger orders, we will ship via freight services as needed. If you have special delivery needs please contact us and we will do our best to accommodate you.
3-day ground service is available only to the continental US (48 states).
Shipping descriptions like "Next Day", "2-Day", etc. are used to denote service levels and do not guarantee when you will receive your order. They represent time in transit after an item has been shipped. The delivery times are based upon item availability and shipping to urban areas within the continental US (48 states). Delivery to rural areas, Alaska and Hawaii may take longer.
U.S. Orders: We will only ship to the credit card billing address or an approved alternate shipping address. **WE DO NOT SHIP TO PO BOXES**. If your credit card billing address is a PO box, please use an approved alternate shipping address.
International Orders: We do not ship orders to addresses outside the U.S. (including APO boxes).

Tax Policies

Taxes are charged in the following regions either by the seller, per their tax policy, or by Reverb as a Marketplace Facilitator:

Georgia
Hawaii
Illinois
Kansas
Louisiana
Michigan
Mississippi
North Carolina
Alabama*
Arizona*
Arkansas*
California*
Colorado*
Connecticut*
District of Columbia*
Idaho*
Indiana*
Iowa*
Kentucky*
Maine*
Maryland*
Massachusetts*
Minnesota*
Nebraska*
Nevada*
New Jersey*
New Mexico*
New York*
North Dakota*
Ohio*
Oklahoma*
Pennsylvania*
Rhode Island*
South Carolina*
South Dakota*
Tennessee*
Texas*
Utah*
Vermont*
Virginia*
Washington*
West Virginia*
Wisconsin*
Wyoming*
*Marketplace Facilitator State. Reverb collects tax on the sellers behalf. Learn More

Return Policy

Return Window

This product can be returned within 30 days of receipt.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.

Refunds

Buyer receives a full refund in their original payment method less any shipping costs and a 15% restocking fee.

Special Conditions

At Full Compass your satisfaction is our top priority. Merchandise may be returned within 15 business days of receipt without restocking charge if the original manufacturer's carton is unopened and undamaged. If the package has been opened a minimum restocking charge of 15% or $10.00, whichever is greater, will be charged. Used or damaged merchandise, missing accessories or packaging will increase the restocking fee.

The customer is responsible for all shipping expenses from and to us on returns. Items originally sent via "free shipping" will be charged for the outgoing shipping on returns.

Returns are not allowed on special-order/non-stock, custom goods, closeout, used or discontinued merchandise, tape, gel, lamps, books, opened software, ear-phones, chemicals, or on bids and contracts. All returns must have an RA-number on the package.

**Parts: Installed service parts purchased from Full Compass are non-returnable unless they are defective upon arrival. In addition, all defective returns are exchange only - no money will be refunded.

All returns must receive prior approval and an RA number in order to be accepted by our warehouse. Any package returned without an RA number will be refused by our warehouse. RA numbers expire 30 days after issuance, if the item is not returned within 30 days the item is no longer eligible for return.

The Full Compass Gear Locker

Verona, WI, United States
Joined: Feb 2014

Seller Achievements

Accepted Payment Methods

Credit Card
Reverb Bucks
Paypal
Affirm

As low as $64/month

Orange Amplification OB1-300 300W Class A/B Bass Amplifier Head -Display Model
$719.99
+ Free Shipping