DIAMOND MICRO1V2 MICRO Series Amplifiers Owner’s Manual

: June 10, 2024
: DIAMOND

DIAMOND MICRO1V2 MICRO Series Amplifiers

MICROV2 Series AMPLIFIERS

The MICROV2 Series Amplifiers from Diamond Audio are designed to provide high fidelity sound. However, prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. Please exercise restraint in its operation to preserve your ability to enjoy its high fidelity sound for many years to come.

Diamond Audio recommends professional installation by an authorized dealer for the best possible system recommendation and installation. With proper validation, using a Diamond Audio Retailer for installation, your newly purchased amplifier, Diamond Audio will extend the product warranty from one year to Two Years!!

Product Features

The MICROV2 Series Amplifiers are available in four models – MICRO1V2, MICRO2V2, MICRO4V2, and MICRO5V2. The power ratings for each model are as follows:

Model	Power Rating
MICRO1V2	500 W RMS
MICRO2V2	500 W RMS
MICRO4V2	600 W RMS
MICRO5V2	950 W RMS

The amplifiers also have status LED’s that indicate when the amplifier is powered up normally and when there is a protection fault.

Installation Planning Section

Before installation, please note that prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. Diamond Audio amplifiers can exceed that level, so please exercise restraint when listening to your new amplifier.

General Precautions

Mount the amplifier on a solid surface, avoiding areas prone to vibration or plastic/combustible materials.
Do not install the amplifier on subwoofer enclosures.
Prior to mounting the amplifier, make sure not to cut or drill into the fuel tank, fuel lines, brake lines (under chassis) or electrical wiring.

Mounting Precautions

Using a felt pen, mark the mounting hole locations.
Mounting the amplifier on carpet will reduce airflow, resulting in reduced thermal run times.

Wiring Precautions

Before installation, make sure the source unit power switch is in the OFF position.
Disconnect the negative (-) lead of the battery before making any power connections.
When making connections, be sure that each one is clean and secure. Insulate all of your connections to avoid damage to your equipment.
A secure clean ground connection is critical to the performance of your amplifier. Connect the ground directly to the car chassis to minimize resistance and avoid any noise problems.
Add an external fuse on the amplifier’s positive (+) power lead and connect it as close as possible to the vehicle’s (+) battery terminal. Use a rating that equals the total current consumption at full output of all amplifiers in the system. This external fuse will protect the vehicle from short circuits that can cause a fire.

If you encounter any problem with your amplifier, please contact your authorized Diamond Audio dealer or call Diamond Audio’s technical support.

ABOUT THE DIAMOND AUDIO EXPERIENCE

Congratulations, you have just purchased one of the finest mobile audio products on the market. Diamond Audio products represent the latest advances in acoustic technology in sound reproduction for your vehicle. Diamond Audio products are designed, developed, and engineered in the USA using the latest innovative materials and components to provide the finest sound reproduction possible. Every Diamond Audio product has been verified and tested to ensure the best sounding and most reliable product on the market, if installed properly .Diamond Audio products will provide many years of the ultimate listening experience.
Please note that prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. Using Diamond Audio products can exceed that level so please exercise restraint in its operation in order to preserve your ability to enjoy its high fidelity sound for many years to come.
Diamond Audio recommends our products be professionally installed by an authorized Diamond Audio dealer to achieve the best possible system recommendation and installation. This will ensure a true Diamond Audio listening experience and sound you would expect from Diamond Audio products. With proper validation, using a Diamond Audio Retialer for installation, your newly purchased amplifier, Diamond Audio will extend the product warranty from one year to Two Years!!
Go ahead, Hear the Music

FEATURES

Full Range Class D IR Chipset
DirectFET Power Mosfet Output Stage
SMD Technology on 4 layer Glass PC Board
ICAD circuit provides superior overload protection
Frequency response 20 HZ – 30kHz
Variable 12db crossovers
Bridgeable / 2ch-4ch switch control
BTR (BlueTooth Receiver enabled)
MICRO Bass boost +12DB @45Hz
Premium 8 and 4 gauge power connections
Multi channels / Mono channel

POWER RATINGS

DIAMOND-MICRO1V2-MICRO-Series-Amplifiers-FIG
13

INSTALLATION -Pre Planning Section

WARNING: Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. DIAMOND AUDIO ampliﬁers can exceed that level so please exercise restraint when listening to your new ampliﬁer.
GENERAL PRECAUTIONS

This unit is designed for negative ground 12V DC operation only.
Total system impedance must Not be less than 2 Ohms stereo, or 1 Ohm bridged for MICRO1V2. MICRO5V2 is minimum 2 Ohms bridged on sub channel(ch5), and the MICRO4V2. MICRO5V2(ch 1, 2, 3, 4) is 4 ohms bridged mono (stereo)
Avoid installing the unit where: It would be subject to high temperatures, such as from direct sunlight or hot air from the heater. – It would be exposed to rain, moisture, dust or dirt.
Do not cover the unit with carpet or wires.
Do not use the unit with a weak auto battery. Optimum performance depends on optimum battery supply voltage.
For safety reasons, keep the volume of your car audio system moderate while driving your vehicle so that you can still hear normal trafﬁc sounds outside your car.
There is NO speaker level input connector, you can cut RCA’s and solder the wires and connect directly thru low level input(RCA) Or purchase the “optional ” RCA Adaptor cable to make a cleaner connection, model – DAHILVL

MOUNTING PRECAUTIONS
Although DIAMOND AUDIO ampliﬁers incorporate heat sinks and protection circuits, mounting the ampliﬁer in a tight space without any air movement can still damage internal circuitry over time. Choose a location that provides adequate ventilation around the ampliﬁer. For easy system set-up, mount the ampliﬁer so the side panel controls will be accessible after installation. To increase thermal run times on low impedance loads, an additional fan is recommended, remember any moving air across the ampliﬁer will reduce heat. In addition, observe the following precautions:

Using a felt pen mark the mounting hole locations.
Mounting the ampliﬁer on carpet will signiﬁcantly reduce air ﬂow, resulting in reduced thermal run times.
Mount the ampliﬁer on a solid surface. Avoid mounting to sub woofer enclosures or areas prone to vibration. Do not install the ampliﬁer on plastic or other combustible materials.
Prior to mounting the ampliﬁer, make sure not to cut or drill into the fuel tank, fuel lines, brake lines (under chassis) or electrical wiring..

WIRING PRECAUTIONS

Before installation, make sure the source unit power switch is in the OFF position.
Disconnect the negative (-) lead of the battery before making any power connections.
When making connections, be sure that each one is clean and secure. Insulate all of your connections. Failure to do so may damage your equipment.
A secure clean ground connection is critical to the performance of your ampliﬁer. Connect the ground directly to the car chassis to minimize resistance and avoid any noise problems.
Add an external fuse on the ampliﬁer’s positive (+) power lead and connect it as close as possible to the vehicle’s (+) battery terminal. Use a rating that equals the total current consumption at full output of all ampliﬁers in the system. This external fuse will protect the vehicle from short circuits that can cause a ﬁre.

FEATURES/FUNCTIONS

DIAMOND-MICRO1V2-MICRO-Series-Amplifiers-FIG
1

Status LED’s — These lights indicate when the amplifier is powered up normally and when there is a protection fault. The Protect LED is illuminated when there is a problem with your amplifier. Please contact your authorize DA dealer or call DA’s technical support.
Sensitivity (Input Gain Adjustment) — This control matches the preamp stage of the DIAMOND AUDIO amplifier to your source unit. This is NOT a volume control. The range is between approx. 200mV and 10V. It can ALSO handle speaker inputs of less than 25 watts RMS (typical OEM headunits are LESS than 25 W RMS,…but NOT all)
TURN-ON OPTIONS – The MICRO series of amplifiers can be switched on and off using one of three methods, determined by the position of the amplifier’s “Turn-On Mode” switch. Please read the “Set-Up ” portion of this guide and determine which is best suited for your specific system. NOTE: DC and VOX turn-on settings ONLY work with speaker level input.
Crossover Selection Switch — This switch allows you to select the crossover type. Use High Pass (HP) for midrange or high frequency speakers. Use Low Pass (LP) for subwoofers. In the FLAT position, neither crossover adjustment knob has an affect and all speakers will receive the full frequency range.
LP/FULL/HP Crossover Adjustment — Use this adjustment to ADJUST the crossover type. Remember that you must select the High Pass position (HP) or the Low Pass (LP) or FULL range position of the crossover adjustment switch first. The range of adjustment is limited between 40-400 Hz (Front/Rear on MICRO4V2) and 70Hz front (FIXED on MICRO5V2). Or FULL which passes ALL frequencies.
Bass Boost — This control adds 0 to +12dB of boost at 45Hz. Be cautious when adding boost to some subwoofer systems as they may not be able to handle the additional low frequency boost. In the OdB position, no bass boost is added.
RCA Input Harness — The RCA jacks allow for a normal Left and Right channel signal input. Simply connect to the source unit using RCA type audio cables, keeping them away from power wiring wherever possible to reduce risk of noise. NOTE: This input can be used for “speaker level” input by using the optional adaptor, or by simply cutting and attaching OEM head unit speaker outputs.
2/4 Channel Input Configurator — (MICRO4V2 ONLY) Use this switch when you are using a stereo ONLY output and would like all 4 output channels on the MICRO4V2 to have signal/power output. Or when bridging stereo the MICRO4V2 to be a big 2 channel high pass or a stereo subwoofer amplifier (4 Ohms only, bridged stereo or bridged mono).
5/3 Channel Input Configurator — (MICRO5V2 ONLY) Use this switch when you are bridging stereo the front 4 channels to be a big 3 channel amplifier. Use the Front positive (+) and the Rear negative (-) for the bridged output (4 ohms ONLY!).
BTR Port— Use this port ONLY with the special Diamond Audio BTR receivers (Datura/12). These make the MICROV2 series a simple bluetooth solution for a variety of MotorSport and Marine applications.
Speaker Output Harness — Connect your speakers to these wires. Stereo connections are connected as labeled. Bridged connections use the LEFT + and RIGHT – as the two connections. The 2 and 4 channel amplifiers will perform into 2 Ohm stereo loads or 4 Ohm bridged loads. DO NOT run 2 Ohm bridged loads on MICRO2V2/MICRO4V2 amplifiers! The MICRO1V2 mono block 1 Ohm mono, MICRO5V2 sub channel 2 ohms minimum.
Remote Level Control — MICRO1V2/MICRO2V2/MICRO5V2 amplifiers have this port and is for the remote level control (included). The control is intended to allow the user to control the level of gain up to the maximum adjustment level set on the amplifier. The control does not add additional boost, it only attenuates the setting that is fixed at the amplifier’s control panel.
Sub—Sonic Adjustment — This control allows you to remove the unwanted sub-sonic frequencies below the tuning frequency of a ported enclosure. This helps to protect the woofer from over excursion.
Power Input Connections — These connections are for input power, chassis ground, and remote turn-on. Use a minimum of 8 gauge wiring for power and ground connections. 4 Gauge is recommended for the mono block. The terminals will handle up to 8 gauge.

INSTALLATION

VEHICLE ELECTRICAL SYSTEM
Ampliﬁers (regardless of brand name) will put an increased load on the vehicle’s battery and charging system. DIAMOND AUDIO recommends checking your alternator and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo system. Original equipment electrical systems, which are in good condition, should be able to handle the extra load of any DIAMOND AUDIO ampliﬁer without problems, although battery and alternator life can be reduced depending on your individual listening habits.

WARNING:
Avoid running power wires near the low level input cables, antenna, power leads, sensitive equipment or harnesses. The power wires carry substantial current and could radiate noise into the audio system through the audio cables.

INSTALLATION:

Plan the wire routing. Keep RCA cables close together but isolated from the ampliﬁer’s power cables and any high power auto accessories, especially electric motors. This is done to prevent coupling the noise from radiated electrical ﬁelds into the audio signal. When feeding the wires through the ﬁrewall or any metal barrier, protect them with plastic or rubber grommets to prevent short circuits. Leave the wires long at this point to adjust for a precise ﬁt at a later time.
Prepare the power wire for attachment to the ampliﬁer by stripping 5/8 inch (15.9mm) of insulation from the end of the wire. Insert the bare wire into the B+ terminal And tighten the set screw to secure the cable in place.
WARNING:
The B+ cable MUST be fused 18″ or less from the vehicle’s positive battery post. Choose a location to install a waterproof fuse holder under the hood and ensure connections are watertight. If you do not use the appropriate fuse holder, the connection will eventually suffer corrosion from moisture and heat.
Trim the power cable within 18 inches (45.7mm) of the positive battery post and splice in a in-line fuse holder. DO NOT install the fuse at this time.
Strip 1/2 inch (12.7mm) from the battery end of the power cable. Crimp and soldier a large ring terminal to the cable. Connect the ring terminal to the positive (+) battery post.
FUSE WIRE DIAGRAM
Prepare the ground wire for attachment to the ampliﬁer by stripping 5/8″ of insulation from the end of the wire. Always use a wire of the same gauge as the power connection, never smaller. Insert the bare wire into the GND terminal and tighten the set screw to secure the cable in place. Prepare the chassis ground by scraping any paint from the metal surface and thoroughly clean the area of all dirt and grease. Strip the other end of the wire, crimp and soldier a ring connector. Fasten the cable to the chassis using a non-anodized screw with a star washer and a nut.
WARNING: It is important to upgrade the ground connection between the negative (-) battery post and the vehicle body or chassis to achieve optimum electrical performance.
Prepare the REM turn-on wire for attachment to the ampliﬁer by stripping 5/8 inch (15.9mm) of insulation from the end of the wire. Insert the bare wire into the REM terminal and tighten the set screw to secure the wire in place. Connect the other end of the REM wire to a switched 12 volt positive source. The switched voltage is usually taken from the source unit’s remote amp turn on lead. If the source unit does not have this output available, the recommended solution is to wire to an accessory terminal in the car’s fuse block using a relay to isolate the ampliﬁer from the vehicles accessory circuit. This however will turn the ampliﬁer on and off with the ignition key, regardless of whether the car stereo is on or off.
FUSE CONNECTION DIAGRAM
Securely mount the ampliﬁer to the vehicle or amp rack. Be careful not to mount the ampliﬁer on cardboard or plastic panels. Doing so may enable the screws to pull out from the panel due to road vibration or sudden vehicle stops.
Connect from source signal by connecting the RCA audio cables to the input jacks at the ampliﬁer.
RCA CONNECTION DIAGRAM
Connect the car speakers. Speakers impedance should never be less than 2 Ohms stereo, 4 Ohms bridged(the MICRO1V2 mono block is stable into 1 ohms). For most applications 18 gauge wire is adequate for the speaker leads. For leads in excess of ten feet, 16 gauge wire is recommended. When wiring the speakers, pay careful attention to the polarity of the terminals on the speakers and make certain they correspond to the polarity on the ampliﬁer. DO NOT chassis ground any of the speaker leads as unstable operation or damage to the ampliﬁer and/or speaker may result.

SET UP

Placing the x-over switch in the FULL position (MICRO4V2/MICRO5V2) sets the ampliﬁer to Full Range. This setting allows ALL frequencies to pass to the speakers. With the MICRO4V2/MICRO5V2, Placing the switch in the HP or LP position activates the 12dB crossover, adjustable from 40Hz – 400Hz. . The MICRO1V2 mono is dedicated for Low Pass (LP) only with an adjustable frequency from 40Hz – 400Hz. The MICRO5V2 (5 channel) ampliﬁer offers full range (FULL) or high pass (HP) selector switch for channels 1-4. Selecting the high pass (HP) will activate a ﬁxed 70Hz cross over for full range speakers. Channel 5 (on MICRO5V2) is dedicated for subwoofers only but offers an adjustable LP crossover from 25Hz – 250Hz.
Placing the switch in the HP sets the ampliﬁer to the High Pass Filter mode, enabling frequencies above the cutoff point to pass. Placing the switch in the LP position sets the ampliﬁer to the Low Pass Filter mode, enabling frequencies below the cutoff point to pass. For system tuning begin with the frequency set at approximately 80Hz and ﬁne tune up or down based on music choice and input level.
To adjust the gain setting, turn the ampliﬁer gains all the way down (counterclockwise). If using a remote level control (MICRO1V2/MICRO5V2), plug the level control into the ampliﬁer and turn it to about “HALF-WAY” (approx. the 12 O’clock position) this setups the bass boost so you can turn it UP ..OR…turn it DOWN when playing different music styles. Next turn the source unit volume up to almost full volume (usually about 2/3rds of the way up) or until the output starts to distort on an oscilloscope. This will be NEARLY full volume on most source units, perhaps one or two “clicks” down from maximum volume. Next, increase the ampliﬁer gain setting until adequate volume is achieved, or until distortion is audible and then turn it down a bit until the distortion is inaudible.
NOTE: Ideal signal to noise and dynamic range are achieved with the gain at minimum. Most users find adequate gain and volume is achieved at less than halfway in the adjustment range. Avoid setting the amplifier gain very high as noise and distortion will increase significantly. For a more in depth level setting (gain adjustment) procedure, visit the DIAMOND AUDIO website.
The HP or LP crossover adjustment can now be ﬁne tuned. If you are using the ampliﬁer in a HP conﬁguration and would like the system to be a little bit louder you can increase the HP Filter frequency and reset the “Gain” of the ampliﬁer. Raising the HP frequency up to high however will cause a loss of mid range and bass. If you are using the ampliﬁer in a HP ﬁlter conﬁgura-tion and you hear voice or vocals coming from your subwoofer system you can turn the LP Filter frequency down (lower). After setting the input gain adjustment and crossover, you may choose to add a small amount of “Bass Boost” (MICRO1V2) in the low frequency region. Remember that the Bass Boost feature will not ﬁx a poorly designed subwoofer enclosure or subwoofers that didn’t sound good to begin with.

Make sure any bass EQ or low frequency equalization from the source unit is set to OFF or FLAT.
While playing the same musical selections used during the gain setting process, slowly increase the level of the Bass EQ. You should be able to notice a obvious change between 0 and +12dB. If you do not notice much difference, then it will not serve any beneﬁt to increase the boost further. 3. If the boost has audible beneﬁts without adding appreciable distortion, ﬁnd a level that suits your taste. Remember: it’s much easier to construct the right subwoofer enclosure for your listening preferences than relying on a bass boost control to do the job!

SYSTEM CONFIGURATIONS

TURN-ON OPTIONS – configure the “Turn-On Mode” switch for desired turn-on trigger. There are 3 modes available on the Bomber series amplifier, REM, DC and VOX. REM is the standard 12V trigger wire, DC or DC offset, when connected high level in, will sense differences in ground in your wiring through the speaker leads and turn on amplifier, VOX (signal sensing) will sense any kind of signal input into the amplifier RCA turning on the amplifier. Select VOX when using any DIAMOND AUDIO Bluetooth Controller. The most preferred and reliable method is using the REM setting with a 12V trigger wire connected to the vehicles ignition and will provide instant on and off for the amplifier. VOX and DC will provide turn on capabilities for the amplifier when a 12V trigger wire is not available. These methods will have some delay in turning the amplifier on and off. DIAMOND-MICRO1V2-MICRO-Series-Amplifiers-FIG
7

BTR Port – (Bluetooth Receiver Port) This port is specifically to be used with any DIAMOND AUDIO Bluetooth controller. This will allow direct plug in to the amplifier and control simple functions of music playback through the BTR receiver. The supplied cable is the ONLY cable that can be used to plug into the BTR port on the amplifier. Connecting any other non-approved cable into the BTR port of the amplifier can cause damage to the amplifier and not be covered under warranty. The BTR will pair to your phone or selected BT device and will allow playback through the amplifier to speakersgiving you unlimited install options. Play, Pause, Volume up/down, track up/down, Pairing and power on/off of BT audio through this one solution. Once paired, the BTR will auto pair the last person paired to the controller when it was powered down. The unit will remember up to 9 users and have memory without battery for up to 30 days. REMEMBER: When connecting a DIAMOND AUDIO controller using the BTR port select the turn on option to VOX. DIAMOND-MICRO1V2-MICRO-Series-Amplifiers-
FIG 8

MICRO4V2- 4 CHANNEL CONFIGURATION
STEREO FRONT/REAR SETUP

MICRO4V2 – FULL MARINE/HOT ROD
SYSTEM WITH BTR

MICRO1V2 – Monoblock
Subwoofer(s)

MICRO5V2 – 5 CHANNEL SYSTEM

PRODUCT SPECIFICATIONS

LIMITED WARRANTY STATEMENT

Diamond Audio Technologies (DAT), a division of CV & DA Holdings Incorporated, warrants this product to be free from defects in material and workmanship for a period of one (1) year from the original date of purchase, provided it was purchased from an authorized DAT retailer within the United States. Product warranty period starts at the date of purchase or one year past the manufacture date whichever is first. However, upon purchase and completion of the
on-line registration and installation by an authorized DAT dealer you warranty period will be extended to two (2) years. This warranty extension offer will only be recognized upon completion of the on-line registration of your product within thirty (30) days of the date of purchase.
THIS WARRANTY IS NOT TRANSFERABLE AND APPLIES ONLY TO THE ORIGINAL PURCHASER OF THIS PRODUCT IN ITS ORIGINAL INSTALLATION. Original purchaser must reside in the United States and be able to provide proof of purchase and installation with the sales receipt and completion of online registration from the authorized DAT retailer that sold and installed the product.
Should a manufacturing defect occur during above said warranty period, DAT will replace or repair the defective product with a product of the same or equivalent value and performance, at DAT’s discretion.
Damage or failure caused by any of the following is not covered under this warranty policy: negligence, improper use, abuse, product modification, unauthorized repair attempts, accident, acts of God, misrepresentations by DAT retailers, and improper/inadequate packaging during return shipping.
Warranty is void if serial numbers have been removed, altered or defaced.

HOW TO OBTAIN WARRANTY SERVICE

In the event a DAT product should require service, you should visit the authorized DAT retailer you purchased the product from and they can expedite your claim. All claims must fall into the guidelines listed above and be accompanied by a copy of the original sales and installation receipt from that authorized DAT retailer.
Product returned for warranty service must be freight-prepaid, properly packaged and clearly marked with the Return Authorization (RA) number issued by DAT. Any product returned to DAT that is improperly packaged, does not have a
RA number clearly marked on the package, or never received a RA number may be refused upon delivery. DAT does not assume responsibility for lost or misdirected product.
Repair or replacement under this warranty is the exclusive remedy of the consumer. DAT shall not be liable for any incidental or consequential damages for breach of any expressed or implied warranty on this product. Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights that may vary from state to state.
Customers outside the United States should contact their local sales office to obtain information on pricing, exchange unit availability, instructions, service and warranty/non-warranty replacement or repair.

Diamond Audio Technologies
3761 South Hill St,
LOS ANGELES, CA 90007
Tel: 213-261-4161
Fax: 213-947-4767
Web: diamondaudio.com

Service/Tech Support:
213-261-4161
Tech Support Email
helpdesk@dat-cvm.com

3761 South Hill St.
Los Angeles, CA. 90007
www.DiamondAudio.com