FCC ID: 2AIQW-G50 ACTIVE SPEAKER

G25 & G50 OWNERS MANUAL G25 G50 AcousticAmplification.com 20 30

FRONT PANEL REAR PANEL G25 & G50 OWNERS MANUAL 1 2 3 4 5 6 7 8 10 9 11 12 FRONT PANEL INPUT 1. Connect your guitar here. If using any effects pedals, connect your guitar to those, and then connect the output from the last pedal to this jack. 2. VOLUME 1 Sets volume for the wide-open clean BLUE CHANNEL. 3. 1/2 CHANNEL SELECT Selects Channel 1 (blue LED is lit) or Channel 2 (red LED is lit). Disabled while rear panel CHANNEL SELECT FOOTSWITCH is connected. jack 6. VOLUME 2 Sets volume for Channel 2. Does not affect BLUE CHANNEL. 7. BASS, MID, TREBLE tone, affecting both These knobs adjust channels. For the standard tuning, turn the knobs so the white lines are pointing straight up. Turning a knob lower reduces that tone range. Turning higher increases it. 8. AUX IN Connect audio cable from smartphone, laptop or other source. 9. BLUETOOTH 4. VOICING Select one of the 4 voices for Channel 2 here, then turn knobs to the right to adjust sound and volume. Press On/Pair for one second to activate Bluetooth pairing. Press Off to disable Bluetooth. Blue LED flashes when pairing, and lights solid when paired. 5. DRIVE Turn to minimum for cleanest sound for selected voice, turn up to increase drive and distortion. Does not affect BLUE CHANNEL. 10. PHONES Connect earbuds or headphones here, speaker will be disabled. 11 12 REAR PANEL 11. POWER Connect included power cable from power outlet to this power jack, and flip switch on. If amplifier will not power on and you suspect its fuse may have blown, turn off the power switch, unplug the power cord from the amplifier and open the fuse compartment under the power jack using a small flat blade screwdriver. If metal strip in fuse is broken, replace with fuse type indicated on rear panel. 12. CHANNEL SELECT FOOTSWITCH Connect a latching footswitch here for channel select control. Front panel 1/2 (Channel Select) 3 switch is disabled while footswitch is connected. 4 | GAMMA SERIES Electric Guitar Amps G25 & G50 Owner s Manual | 5 IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS To prevent electric shock, do not use a polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure. Please keep this instruction manual for future reference and for the duration of owning your GAMMA guitar amplifier. Please carefully read and understand the instructions inside this owners manual before attempting to operate your new powered loudspeaker. This instruction manual includes essential safety information regarding the use and maintenance of the amplifier. Take special care to heed all warning symbols and signs inside this manual and those printed on the amplifier on the back of the loudspeaker. WARNING TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THE AMPLIFIER TO WATER/MOISTURE, NOR SHOULD YOU OPERATE THE AMPLIFIER NEAR ANY WATER SOURCE. The exclamation point triangular symbol is intended to alert the user to the presence of important operating and maintenance(servicing) instructions in the user manual accompanying the Amplifier. The lightning flash with an arrow triangular symbol is intended to alert the user to the presence of non-insulated dangerous voltage within the products enclosure, and may be of sufficient magnitude to constitute a risk of electric shock. Do not damage or deform it as it may cause electric shock or malfunction when used. Hold the plug attachment when removing from wall outlet. Do not pull on the power cord. WARNING Handle the power supply cord with care. IMPORTANT SAFETY PRECAUTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all Instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturers instructions. DO NOT turn on the GAMMA amplifier before connecting all other external devices. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11. Only use attachment/accessories specified by the manufacturer. 12. Use only the cart, stand, tripod, bracket or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 6 | GAMMA SERIES Electric Guitar Amps 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 15. POWER SOURCES This product should be operated only from the type of power source indicated on the rating label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company. 16 WALL OR CEILING MOUNTING The product should never be mounted to a wall or ceiling. 17. Where the mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. 18. OBJECT AND LIQUID ENTRY Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. 19. Water and Moisture: This product should be kept away from direct contact with liquids. The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus. 20. Keep the speaker system out of extended or intense direct sun light. 21. No containers filled with any type of liquid should be placed on or near the speaker system. 22. SERVICING The user should not attempt any service to the speaker and/or amplifier beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel. 23. VENTILATION Slots and openings in the amplifier are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating. These openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug, or other similar surface. This product should not be placed in a built-in installation such as a bookcase or rack. 24. Protective earthing terminal: The apparatus should be connected to a main socket outlet with a protective earthing connection. 25. ACCESSORIES Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer, or sold with the product. 26. When moving or not using the appliance, secure the power cord (e.g., wrap it with a cable tie). Be careful not to damage the power cord. Before using it again, make sure the power cord has not been damaged. If the power cord has been damaged at all, bring the unit and cord to a qualified service technician for repair or replacement as specified by the manufacturer. 27. LIGHTNING For added protection during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet. This will prevent damage to the product due to lightning and power-line surges. 28. REPLACEMENT PARTS When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards. G25 & G50 OWNERS MANUAL HEARING DAMAGE AND PROLONGED EXPOSURE TO EXCESSIVE SPLs GAMMA series electric guitar amplifiers are capable of producing extremely loud volume levels that can cause permanent hearing damage to performers, production crews or the audience. Hearing protection is recommended during long-term exposure to high SPLs

(sound pressure levels). Remember, if it hurts, it is definitely too loud! Long term exposure to high SPLs first causes temporary threshold shifts; limiting your ability to hear the actual loudness and exercise good judgment. Repeated long term exposure to high SPLs will cause permanent hearing loss. Please note the recommended exposure limits in the accompanying table. More information about these limits is available on the US government Occupational Safety and Health (OSHA) website at: www.osha.gov. Permissible Noise Exposures (1) Duration per day, hours Sound level dBA slow response 8 6 4 3 2 1 1.5 0.5 0.25 or less 90 92 95 97 100 102 105 110 115 THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE

(SERVICING) INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE UNIT. APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING AND THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, SHALL BE PLACED ON THE APPARATUS. FCC STATEMENTS 1. Caution: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver 2. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, uses, and can radiate radio frequency energy and , in not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio/TV technician for help FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. G25 & G50 Owner s Manual | 7 G25 & G50 OWNERS MANUAL WARRANTY AND CUSTOMER SUPPORT 2 Year Acoustic Control Corporation Limited Warranty. Acoustic Control Corporation provides, to the original purchaser, a two (2) year limited warranty on materials and workmanship on all Acoustic Control Corporation amplifiers, loudspeaker and amplifier components from the date of purchase. For warranty support, please visit our website at www.AcousticAmplification.com, or contact our Support Team at 855-272-1090 for assistance. GAMMA will repair or replace the unit at Acoustic Control Corporations discretion. This warranty does not cover service or parts to repair damage caused by neglect, abuse, normal wear and tear and cosmetic appearance to the cabinetry not directly attributed to defects in materials or workmanship. Also excluded from coverage are damages caused directly or indirectly due to any service, repair(s), or modifications of the cabinet, which has not been authorized or approved by Acoustic Control Corporation. This two (2) year warranty does not cover service or parts to repair damage caused by accident, disaster, misuse, abuse, burnt voice-coils, over-powering, negligence, inadequate packing or inadequate shipping procedures. The sole and exclusive remedy of the foregoing limited warranty shall be limited to the repair or replacement of any defective or non-conforming component. All warranties including, but not limited to, the express warranty and the implied warranties of merchantability and fitness for a particular purpose are limited to the two (2) year warranty period. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you. There are no express warranties beyond those stated here. In the event that applicable law does not allow the limitation of the duration of the implied warranties to the warranty period, then the duration of the implied warranties shall be limited to as long as is provided by applicable law. No warranties apply after that period. Retailer and manufacturer shall not be liable for damages based upon inconvenience, loss of use of product, loss of time, interrupted operation or commercial loss or any other incidental or consequential damages including but not limited to lost profits, downtime, goodwill, damage to or replacement of equipment and property, and any costs of recovering, reprogramming, or reproducing any program or data stored in equipment that is used with GAMMA products. This guarantee gives you specific legal rights; you may have other legal rights, which vary from state to state. Acoustic Control Corporation P.O. Box 5111, Thousand Oaks, CA 91359-5111 All trademarks and registered trademarks mentioned herein are recognized as the property of their respective holders. 2109-21495109 AcousticAmplification.com

Ningbo Tonwel Audio Co., LTD Agent Authorization Company: Ningbo Tonwel Audio Co., LTD Address: No.28, Xiyi Road, Jiangshan Town, Yinzhou, Ningbo, China Product Name: ACTIVE SPEAKER Model Number: G50 Product Description: ACTIVE SPEAKER with BT We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Date: 2021-11-19 Signature:

Name:

Jiankuai Li Title:

PM Company: SHENZHEN STS TEST SERVICES CO.,LTD.

Ningbo Tonwel Audio Co., LTD Authorization Letter We,

(the approval holder) Company name Ningbo Tonwel Audio Co., LTD No.28, Xiyi Road, Jiangshan Town, Yinzhou, Ningbo, China Address declare that the following representative (agent):

Name (person) Bovey Yang Company name Shenzhen STS Test Services Co., Ltd. Addresss 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Baoan District, Shenzhen, Guangdong,China City Shenzhen China Country to act on our behalf on all matters concerning the application and documents submitted to Micom Labs for product certification below Product Description ACTIVE SPEAKER Type or Model(s) G50 2AIQW- G50 FCC ID:

Attestation:

City:

Date:

Name:

(this must be a person) Function:

Signature:

(or official company stamp) China 2021-11-19 Jiankuai Li PM

2021.11.23 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize SHENZHEN STS TEST SERVICES CO.,LTD./ A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District,Baoan District, Shenzhen, Guang Dong, China/Jiankuai Li(Name of Agent company name and address, Name of Agent) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. Name: Jiankuai Li Title: PM E-mail:Jiankuai.li@stsapp.com This appointment is valid until further until December 31, 2021 Sincerely, Name: Zhihong Fu Title: Manager E-mail: engnie2@tonwel.com Company: Ningbo Tonwel Audio Co., LTD Signature:

Ningbo Tonwel Audio Co., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AIQW-G50 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual OR For 45 days, pursuant to Public Notice DA 04-1705. For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Date: 2021-11-19 Signature:

Name:

Jiankuai Li Title:

PM Company: SHENZHEN STS TEST SERVICES CO.,LTD.