Monkey Banana Turbo Series - User Manual

The Monkey Banana Turbo Series consists of professional digital bi-amplified studio reference monitors and a subwoofer, designed for precise audio monitoring in various environments such as near-field monitoring, broadcast and TV control rooms, surround sound systems, and home studios. The series aims to deliver pure, original sound without additional coloration, overcoming limitations of conventional studio monitors in digital audio environments.

Function Description:

The Turbo Series monitors are self-powered, accepting both line-level analog and S/PDIF digital audio signals. They feature a wide-range frequency response, high SPL output, and broad bandwidth within a compact enclosure. The system employs two extraordinary drivers and unique crossover technology to achieve a stable and balanced low-mid frequency response, along with defined mid and high-frequency responses. Both drivers are magnetically shielded for desktop music production. The subwoofer (Turbo10s) is a digital active subwoofer designed to extend the low-frequency response of the system.

Important Technical Specifications:

General for Turbo Series Monitors:

• Type: Digital active near-field studio monitor
• HF Driver: 1-inch natural silk dome
• Crossover Frequency: 3KHz
• S/N Ratio (A weighted) HF/LF: >88dB/92dB (Turbo4), >90dB/95dB (Turbo5), >92dB/98dB (Turbo6), >94dB/100dB (Turbo8)
• THD+N @ Rated Power HF/LF: 0.06%/0.03% (Turbo4), 0.05%/0.02% (Turbo5, Turbo6, Turbo8)
• Input Connectors: XLR/TRS Combo Connectors, RCA Connectors, S/PDIF Connectors for digital signal
• Output Connectors: S/PDIF Thru Connector for digital signal
• Input Mode Select: Analog or Digital
• Channel Select: Left or Right (Digital input Mode)
• Polarity: Positive signal at + input produces outward LF cone displacement
• Input Impedance: 20K ohms balanced, 10K ohms unbalanced
• Input Sensitivity: +4dBu (Balanced), -10dBv (Unbalanced)
• Power Rating: 100W (for all monitors)
• AC Input: ~230V~50Hz T1AL 250V

Specific Monitor Models:

• Turbo4:
  • LF Driver: 4 inches Magnetically Shielded PP ceramic cone
  • Frequency Response: 60Hz-30KHz
  • LF Amplifier Power: 30W
  • HF Amplifier Power: 20W
  • Net Weight: 4.5 kg/9.9 lb
  • Gross Weight: 6 kg/13.2 lb
  • Dimension: L287 x W255 x H346 mm (L11.29 x W10.03 x H13.62 in)
• Turbo5:
  • LF Driver: 5 1/4 inches Magnetically Shielded PP ceramic cone
  • Frequency Response: 55Hz-30KHz
  • LF Amplifier Power: 50W
  • HF Amplifier Power: 30W
  • Net Weight: 5.9 kg/12.9 lb
  • Gross Weight: 7.5 kg/16.5 lb
  • Dimension: L320 x W287 x H389 mm (L12.60 x W11.30 x H15.31 in)
• Turbo6:
  • LF Driver: 6 1/2 inches Magnetically Shielded PP ceramic cone
  • Frequency Response: 50Hz-30KHz
  • LF Amplifier Power: 60W
  • HF Amplifier Power: 30W
  • Net Weight: 7.6 kg/16.7 lb
  • Gross Weight: 9.1 kg/20 lb
  • Dimension: L365 x W322 x H449 mm (L14.37 x W12.67 x H17.67 in)
• Turbo8:
  • LF Driver: 8 inches Magnetically Shielded PP ceramic cone
  • Frequency Response: 45Hz-30KHz
  • LF Amplifier Power: 80W
  • HF Amplifier Power: 30W
  • Net Weight: 12.2 kg/26.8 lb
  • Gross Weight: 15 kg/33 lb
  • Dimension: L425 x W385 x H522 mm (L16.73 x W15.15 x H20.55 in)

Turbo10s Subwoofer:

• Type: Digital active Subwoofer
• LF Driver: 10 inches Magnetically Shielded PP ceramic cone
• Frequency Response: 20Hz to 40Hz-200Hz
• Crossover Frequency: 40Hz-200Hz adjustable
• LF Amplifier Power: 300W
• S/N Ratio (A weighted): >90dB
• THD+N @ Rated Power: 0.08%
• Input Connectors: XLR&TRS Connector, RCA Connectors, S/PDIF Thru Connector for digital signal
• Net Weight: 18.7 kg/41.1 lb
• Gross Weight: 22.4 kg/49.2 lb
• Dimension: L500 x W500 x H523 mm (L19.68 x W19.68 x H20.59 in)

Usage Features:

• Front Panel: Features a Power LED indicator.
• Rear Panel Controls:
  • Vent Port: Aids in the reproduction of very low frequencies by discharging frequencies below 60Hz.
  • XLR & TRS Input (+4dBu): Combo input jack for balanced XLR and 1/4" TRS-type connectors, suitable for audio interfaces, mixers, or other line-level audio sources.
  • RCA Input (-10dBv): Accepts unbalanced signals from -10dB devices.
  • S/PDIF Input: RCA for S/PDIF coaxial digital input.
  • S/PDIF THRU: Output for stereo connection.
  • Volume Knob: Adjusts the gain level. Users should start with the volume off and slowly raise it to a comfortable listening level.
  • HF Knob (10KHz +/-6dB): Adjusts high-frequency response. Flat at the 9:00 position; rotating right boosts, rotating left cuts.
  • LF Knob (100Hz +/-6dB): Adjusts low-frequency response. Flat at the 9:00 position; rotating right boosts, rotating left cuts.
  • Channel Select: Left/Right switch available only for digital input.
  • Input Mode Select: Selector for Analog or Digital input source.
  • Power Switch: Turns the unit on and off.
  • AC Inlet: Accepts a standard IEC-type power cable.
• Enclosure Design: Minimum Diffraction Enclosure and advanced directivity waveguide technologies provide excellent frequency balance. The enclosure uses high acoustic efficiency MDF and unique interior reinforcement to absorb vibration and impact, enhancing stability. The custom design on the front panel aids in diffraction and benefits stereo imaging.
• Woofer Design: Features a specially-designed ferrite magnet motor structure for high power handling and linear excursion, generating significant magnetic flux. Steam flow balancing technology with five 6mm diameter vents on the voice coil bobbin maintains consistent air pressure in the magnetic gap, acts as an efficient cooling system, and eliminates unbalanced air pressure mechanical distortion. A 15mm vent in the pole piece provides additional cooling. The voice coil winding height of 14mm ensures linear operation. The spider uses a three-corner support structural design with high restoring and flexible cone materials to maintain voice coil position and prevent fatigue. The cone's weight design minimizes the ratio to the voice coil, and its compound rigidity material minimizes partition movement. The linear cone shape design creates a broad sound field, allowing clear sound even at 40 degrees off-axis. A unique cone material incorporating PP and ceramic provides high conductivity and aesthetic sound.
• Tweeter Design: Utilizes a new NdFeB neodymium magnet circuit, producing a large-oriented magnetic field with a flux density of 13500 Gauss for sufficient driving force. Aerospace materials technology with nano-magnetic particles evenly applied to the magnetic system loop improves thermal conductivity by 600% compared to air, enhancing voice coil cooling and doubling input power. Ferrofluid adjusts damping, reducing Q value, improving transient response, and making the voice coil suspended for automatic positioning, reducing friction and magnetic yoke coil occurrence, thereby minimizing speaker distortion, especially high-order harmonic distortion.
• Power Amplifier: Active crossover networks and power amplifiers are specifically designed for woofers and tweeters. The network distributes low, mid, and high frequencies to driver components to reduce distortion and sound loss, achieving a naturally balanced sound. Two separate power amplifiers in a high-end bi-amp structure drive the woofer and tweeter separately at low-rated distortion for powerful, ultra-crisp sound.
• System Setup:
  • Unpacking: Handle with care, holding both sides of the monitor to avoid touching speaker cones.
  • Placement: Position monitors to form an equilateral triangle with the listener. The top of the woofers should be level with the listener's ears. Place the Turbo series vertically with the woofer at the bottom; horizontal placement is not recommended.
  • Subwoofer Placement (2-channel system): In a 2-channel system with a subwoofer, the common listening distance is 1 to 1.5 meters from the left and right speakers. The listener and speakers should form an equilateral triangle.
  • Surround Sound Placement (5.1 system): Listening distance for all speakers is typically 1.5 to 2 meters. Left and right speakers form an equilateral triangle with the mix position. The center speaker is placed halfway between left and right speakers at the same distance from the mix position. Left and right surround speakers are placed at the same distance as the front speakers, positioned 110 to 150 degrees relative to the center speaker. Subwoofer position can be adjusted for best bass response.
  • Audio Connections: Ensure the main power switch is off before connecting the supplied IEC power cable. Follow the "last on first off" rule for power amplifiers: turn on mixer and other equipment first, then Turbo series; turn off Turbo series first, then mixer and other equipment. Use high-quality balanced or unbalanced cables for input connections.
  • Hum Reduction: Avoid running AC power cords parallel to input cables; if crossing, do so at a 90-degree angle to minimize induced hum. Balanced input connectors provide common mode rejection.

Maintenance Features:

• Cleaning: Clean only with a dry cloth.
• Ventilation: Ensure good ventilation. Do not block ventilation openings or install in confined spaces.
• Environmental Protection: Do not expose the apparatus to rain or moisture, dripping or splashing liquids. Do not place objects filled with liquids on the apparatus.
• Power Cord Protection: Protect the power cord from being walked on or pinched.
• Servicing: Refer all servicing to qualified personnel. Servicing is required if the apparatus is damaged (e.g., power cord, plug, liquid spill, dropped, exposed to rain/moisture, or not operating normally).
• Safety Precautions: Read and follow all safety instructions, heed all warnings. Do not defeat the safety purpose of polarized or grounding plugs. Use only manufacturer-specified attachments/accessories. Unplug during lightning storms or long periods of disuse.
• Warranty: Monkey Banana Turbo Series products come with a 4-year limited warranty for the original purchaser, covering defects in material and workmanship under normal use. The warranty requires the product to be from the original Monkey Banana Company and the warranty return card to be properly filled out and sent to the official agent.
  • Coverage Guidelines:
    • First and Second Year: Monkey Banana company covers labor, parts, and ground freight (within China mainland).
    • Third and Fourth Year: Monkey Banana company covers labor and parts only; customer pays for freight.
  • Warranty Exclusions: The warranty does not cover products altered or repaired by unauthorized personnel, subjected to negligence, misuse, improper use, accident, incompatible products, or used contrary to instructions. It also excludes damages to speaker cabinet/finish due to misuse/abuse, bent speaker frames, broken connectors, holes in cones, burnt voice coils, damage from force majeure (accident, misuse, lightning strike, etc.), fading/deterioration due to improper exposure, bent amplifier casing, burnt PCB tracers, damage from poor packaging/shipping, subsequent damage to other products, altered/missing serial numbers, damage from incompatible third-party software, or non-legal editions. Accessories are not included in the warranty.
  • Service Request: Contact the official agent to obtain an RMA number before shipping defective products. Provide complete contact information as technicians may resolve issues over the phone.
  • Shipping Instruction: Products must be packed in original protective boxes to minimize transport damage.