Orange Terror Bass 500W Hybrid Tube/Class D Bass Guitar Amplifier Head - Orange

Combining the unmistakable warmth and authority of Orange's legendary tube bass amplifiers with the convenience of modern lightweight technology, the Orange Terror Bass 500 delivers professional-level bass tone in a remarkably compact package. Featuring a genuine tube preamp inspired by the flagship AD200, an efficient 500-watt Class D power section, versatile three-band EQ, and professional connectivity, the Terror Bass offers exceptional power, portability, and sonic character for today's working bassist.

At the heart of the Terror Bass is an all-analog valve preamp closely based on Orange's acclaimed AD200 bass amplifier. Featuring an ECC83/12AX7 preamp tube, this circuit delivers the rich harmonic complexity, natural compression, and muscular midrange that have made Orange bass amplifiers favorites among rock, alternative, punk, and heavy music players. From warm, vintage-inspired cleans to aggressive, growling overdrive, the Terror Bass provides a responsive and expressive playing experience.

The amplifier's Class D power section produces an impressive 500 watts into a 4-ohm speaker load, or 250 watts into an 8-ohm load. This substantial output provides excellent headroom, tight low-frequency response, and commanding projection for rehearsals, recording sessions, and live performances. Despite its considerable power, the Terror Bass weighs just over 10 pounds, making it significantly easier to transport than a traditional all-tube bass head.

A straightforward three-band EQ provides intuitive tonal control, with dedicated Bass, Middle, and Treble adjustments for shaping the amplifier's powerful sound. The Gain control allows players to introduce harmonic richness and saturation, while the master Volume control independently determines the overall output level.

For additional versatility, the Terror Bass features a dedicated Clean switch that tightens the low-frequency response and provides greater clarity at higher playing volumes. This is particularly useful for modern bass techniques, extended-range instruments, and situations where a more articulate sound is desired. A separate input Pad switch adjusts sensitivity for active or passive bass guitars, ensuring compatibility with a wide variety of pickup configurations.

The amplifier also includes a tube-driven effects loop featuring an ECC81/12AT7 valve in the send stage. This provides a musical, responsive connection point for external effects, allowing bassists to incorporate modulation, delay, and other processors while maintaining the character of the amplifier's preamp.

For professional stage and studio applications, a balanced XLR direct output allows the Terror Bass to connect directly to a mixing console, recording interface, or PA system. An integrated ground-lift function helps reduce unwanted hum when connecting to external audio equipment.

Designed with working musicians in mind, the Terror Bass features a rugged metal chassis, convenient carrying handle, and compact lunchbox-style construction. Its classic Orange covering, signature control graphics, and distinctive appearance pay tribute to the company's long tradition of British amplifier design.

Whether paired with a compact 1x12-inch cabinet or a full-sized bass speaker stack, the Orange Terror Bass 500 delivers a commanding combination of vintage tube character, modern power, and practical portability. It is an excellent choice for bassists who want authentic Orange tone without the size and weight of a traditional high-powered tube amplifier.

Please Note: This is a bass amplifier head and requires a compatible external bass speaker cabinet for conventional amplified playback. Speaker cabinet sold separately.

Key Features

• Powerful 500-watt hybrid bass guitar amplifier head

• Genuine tube preamp inspired by the Orange AD200

• Efficient, lightweight Class D power amplifier

• 500 watts of output at 4 ohms

• 250 watts of output at 8 ohms

• Single-channel design with extensive tonal flexibility

• ECC83/12AX7 preamp tube for rich harmonic warmth

• ECC81/12AT7 tube-driven effects loop send

• Classic Orange bass tone with muscular low end and growling midrange

• Gain control for clean warmth through saturated overdrive

• Three-band EQ with Bass, Middle, and Treble controls

• Dedicated Clean switch for tighter low-frequency response

• Input Pad switch for active and passive bass guitars

• Independent Gain and Volume controls

• Effects loop for external pedals and processors

• Balanced XLR direct output for live sound and recording

• Ground-lift function to minimize unwanted hum

• Professional locking SpeakON speaker connections

• Compact, portable lunchbox-style amplifier head

• Rugged construction with classic Orange styling

• Excellent for rehearsals, recording, touring, and live performance

Specifications

• Manufacturer: Orange Amplification

• Model: Terror Bass

• Invoice Model Number: TB500H

• Product Type: Bass Guitar Amplifier Head

• Amplifier Technology: Hybrid Tube/Solid-State

• Preamp Type: All-Analog Tube

• Power Amplifier: Class D

• Maximum Output Power: 500 Watts at 4 Ohms

• Output Power at 8 Ohms: 250 Watts

• Channels: 1

• Preamp Tubes: 1 x ECC83 / 12AX7, 1 x ECC81 / 12AT7

• Power Tubes: None

• EQ: Three-Band

• EQ Controls: Bass, Middle, Treble

• Gain Control: Dedicated Gain Knob

• Master Volume: Dedicated Volume Knob

• Input Pad: Switchable

• Clean Mode: Switchable

• Front Panel Controls: Pad, Clean, Gain, Bass, Middle, Treble, Volume

• Effects Loop: Yes

• Effects Loop Send: 12AT7 Valve-Driven

• Effects Loop Return: Solid-State

• Instrument Input: 1/4"

• Speaker Outputs: 2 x Locking SpeakON

• Supported Speaker Loads: 4 or 8 Ohms

• Balanced Direct Output: XLR

• Ground Lift: Yes

• Cooling: Internal Fan and Chassis Ventilation

• Power Connection: IEC AC

• Finish: Orange

• Chassis: Metal

• Carrying Handle: Integrated

• Dimensions (W x H x D): 12.1" x 7.5" x 6.3" (30.7 x 19 x 16 cm)

• Weight: 10.25 lbs (4.65 kg)

• UPC: 5060299177277

• Speaker Cabinet Included: No