T22450 - Car stereo Ultimate - Free user manual and instructions

Product type	Class AB audio power amplifier
Brand	Ultimate
Model	T22450 (T2-2450 series)
Power supply	MOSFET
RMS output power (4 ohms)	4 × 55 W
RMS output power (2 ohms)	4 × 80 W
Max output power (4 ohms)	4 × 140 W
Max output power (2 ohms)	4 × 200 W
Bridged power (4 ohms)	2 × 160 W
Frequency response	10 Hz - 110 kHz
Total harmonic distortion (THD)	0.04%
Signal-to-noise ratio	90 dB
Minimum speaker impedance	2 ohms
Input sensitivity (low level)	300 mV - 8 V
High level input	Up to 10 V
Dimensions (L × W × H)	23 × 45 × 5 cm
Fuse	2 × 20 A
Protections	Short circuit, overload, thermal shutdown
Connectors	Gold-plated RCA, gold-plated terminal block, high level input
Controls	Gain, LPF/HPF/Full filter, bass boost (0-18 dB @ 45 Hz)
Installation	Mount with ventilation, do not mount upside down

Frequently Asked Questions - T22450 Ultimate

How to adjust the gain of the amplifier?

Start by turning the gain to the minimum (8 V position). Set the volume of your head unit to 75% of maximum. Slowly increase the gain until you hear distortion, then reduce slightly. The gain is not a volume control but a sensitivity adjustment.

What to do if the protection LED turns blue?

The blue LED indicates that the amplifier has detected a fault (short circuit, overload, or overheating). Immediately cut off the power, check the speaker connections and ventilation. Wait for the amplifier to cool down, then turn it back on. If the problem persists, consult a professional.

Can I use a car stereo without RCA output?

Yes, use the amplifier's high level input. Connect the speaker wires of the car stereo to the high level input terminals (positive and negative for each channel). Make sure to adjust the gain correctly to avoid distortion.

What is the minimum speaker impedance?

The amplifier is stable with a 2 ohm impedance per channel. A lower load may damage the device. For bridged use, the minimum load is 4 ohms.

How to connect multiple amplifiers?

Use the amplifier's low level output (RCA) to send the signal to a second amplifier. This output provides a full range signal without filter. For power, use a separate fuse for each amplifier.

How to adjust the low-pass filter (LPF)?

Select LPF mode on the crossover switch. Then adjust the variable frequency control (40-200 Hz) to set the cutoff point. Frequencies below this point will be sent to the speakers, those above will be attenuated.

How to adjust the bass boost?

The bass boost control (0-18 dB at 45 Hz) allows you to strengthen low frequencies. Adjust it carefully: start at 0 dB, then gradually increase while listening. Excessive boost may damage the speakers.

Where to mount the amplifier in the vehicle?

Choose a location with good ventilation, such as under a seat or in the trunk, provided that air circulates freely. Never mount the amplifier upside down, as heat dissipation would be inefficient. Avoid humid areas.

What wire gauge to use for power?

Use a minimum 8 gauge (AWG) wire for the positive power supply. The ground wire must be the same gauge and as short as possible. Place a fuse within 18 inches of the battery, rated for the total fuse value of the amplifiers.

How to protect the amplifier from overheating?

Make sure the amplifier is mounted in a ventilated space and not upside down. Do not block the heatsink. In case of thermal shutdown, the amplifier turns off automatically; let it cool down before turning it back on. Reduce volume or bass boost if necessary.

USER MANUAL T22450 Ultimate

Table of Contents	Pages
Table of Contents	3
English	4-8
French	9-13
Spanish	14-18
German	19-23
Diagrams	24-27

Ultimate

Introduction

Ultimate Car Audio products have been designed to deliver awesome performance and the coolest look on the street! Learning from our past successes, our new products have been developed with a whole new look and attitude. After all, we want you to have an ultimate car audio system. Ultimate would like to thank you for purchasing it's products.

Caution

This device is a high power, audio amplifier. Proper and careful usage of this product will provide many years of enjoyment. Being exposed to very loud music can result in temporary or permanent hearing loss. Misuse or improper installation will shorten the life of your product, and/or result in damage to the vehicle electrical system. Please ensure you read this manual completely for procedures on how to properly install this unit.

Description

Ultimate's T2 series amplifiers are designed to deliver powerful, undistorted sound. We drive our amps through rigorous load testing to ensure they operate under the most stressful of conditions. After all, we know you will!

Using rugged cast aluminum end caps, our amps allow you to create a sleek and custom looking install. The power and system wires stay hidden out of site, while all the connections and critical amplifier settings stay protected from unauthorized tampering.

MOSFET technology assures your amp satisfies the voltage and current demands of today's systems. And with ultra low distortion, these amps will deliver clean, crisp sound to your speakers and subwoofers.

Stability is essential when your speaker system drops below normal impedance levels. Our amplifiers will operate safely into 2 ohm loads, without causing distortion to get out of control. Operating at these loads will generate lots of heat. Our engineered heat sink design ensures our amplifiers dissipate that heat effortlessly, while keeping your tunes pumping hard!

Professional tweaking your audio system to get the right sound is an absolute must. Our variable crossover control and bass boost enhancement offers you this flexibility. Choose the level of boost, or find the your speaker's sweet spot. We LOVE a great sounding car audio system too!

Features

• Class AB Circuitry
  • 2 Ohm Stable Amplifier
  • MOSFET Power Supply
• Multi-Channel Capable
• Illuminated "Ultimate" logo
  • Overload Protection Indicator
  • Gold Plated RCA Connections
• Low Level Input – variable up to 8 volts
  • High Level Input – variable up to 10 volts
  • Gold Plated Terminal Block for Power Input & Speaker Output
  • Crossover Selection Switch for LPF / Full / HPF ^1
• Variable Low Pass Filter Control from 40 to 200Hz^2
• Variable Crossover Control for 40 to 400Hz^1
• Variable Bass Boost Control from 0 to 18dB at 45Hz^2
• Bass boost – switched 12dB at 45 Hz ^3
• Protection Circuitry against Short, Overload and Thermal

1 Not available on T2-1200 and T2-1400

2T2-1200, T2-1400 and T2-2100 only

3T2-2450 and T2-5450 only

Protection

This amplifier has been outfitted with protection circuitry against short, overload, and thermal shut-down. In a functional state, the LED glows "red" and indicates "power on". Should the amplifier sense any fault in your speakers or subwoofers, or reach a point of thermal shutdown, the LED will glow "blue". In this case, the power must be shut down to the system to bring the amplifier back to a functional state.

Ultimate

Installation

Ultimate recommends professional installation of all it's products. Should you choose to install this product yourself, please read this manual carefully and refer to the instructions detailed below. Failure to do so may result in poor product performance, premature or immediate malfunction, and potential damage to your vehicle or it's contents.

- When selecting a location to mount your amplifier, please ensure proper ventilation is considered. Areas below seats or in trunks are suitable, so long as air flow is not restricted. Refrain from mounting your amplifier upside down, as heat will not dissipate effectively, and can result in thermal shutdown or component failure

- Using a standard Allen key (3/32), remove the hex bolts located in the fins at the top of the amplifier heat sink. Pulling the end caps away from the amp, you'll find all the connectors and adjustments to complete the installation.

- Mount your amplifier using 4 screws, preferably onto a piece of wood. If screwing into the body of the vehicle, be sure to check for brake, fuel or electrical lines, as well as stay clear of the gas tank.

- Using a minimum of 8 gauge wire, run a power cable directly to the positive terminal of your battery to the ' +12V' terminal of your amp. A separate fuse must be located within 18 inches of the battery to protect the vehicle from a potential short. Total up the fuse ratings on your amplifiers to determine the fuse size required under the hood.

- Your amplifier will turn on only when ignition is activated. This can be accomplished by connecting an 18 gauge wire to the 'trigger' output on your head unit. If you are using an OEM radio, this will not be available. You must locate a +12v switched circuit to achieve this.

- The ground path is equally important to the positive feed of your amplifier. Find or create a bare metal spot on the vehicle's chassis. Using as short a wire as possible, connect to the 'GND' terminal using the same gauge wire as you did for power. The paint on the body must be removed to bare metal.

- If you're using a low-level output signal from your head unit, ensure to use a high quality RCA cable to prevent unwanted noise. It is preferred to use the side opposite to the power wire to run the RCA. Failure to do so can introduce unwanted noise into the input signal which will be heard through your speakers.

- If your head unit doesn't have RCA, then the hi-level input of the amp would be used. For this, it is ideal to tap in on the speakers closest to the amplifier location. Using regular 18 gauge speaker wire, take left and right (both positive and negative) signals. Connect directly to the 'hi-level' input on your amplifier. Proper gain settings are required to ensure undistorted sound.

- You have now completed the basic installation portion of your new amplifier. Please continue to the "Amplifier Settings" section of this manual to properly configure your amp for maximum listening pleasure.

Amplifier Settings

The gain control (input sensitivity) on this amp is not a volume control. It is designed to provide proper matching of various source units to this amplifier, and provides a reference to how much signal will be necessary to reach maximum operating power. Correct settings will ensure safe operation for both your amplifier and speakers.

- Start by turning the gain level to the "8 volt" setting. This is the minimum level, far left.

- Next, turn up your head unit volume up to 75% of max volume. For example, if your digital volume control goes to "50", you would use the "40" level for this exercise.

- Last, slowly begin increasing the gain until distortion becomes audible, then turn the gain back a notch. You have now properly set your input sensitivity.

Crossover Control

Your amplifier has been designed with an onboard 18db/oct crossover, or filter management system. How you configure these settings will be dependent on the speakers you are connecting to the amp. The crossover circuit consists of two main settings: 1. Filter Type; 2. Frequency Adjustment.

The "filter type" is controlled by a "LPF, FULL, HPF" switch. The low-pass filter, LPF, will allow only low frequency information to pass on to the speakers. The opposite would be achieved using the HPF, high pass filter. When no filter is required, the FULL setting would be selected, allowing all frequencies to pass.

For proper operation of some speakers, it is necessary to select the crossover point to which they will play. The "frequency adjustment" setting allows you to accomplish this. In a LPF mode, only frequencies up to the crossover point will play, with a gentle roll-off beyond that point. In HPF mode, any frequency above that point will be heard, with those below being filtered away gradually.

Bass Boost

Sometimes, we want a little more kick to our system's bottom end. Your amplifier has been outfitted with an internal circuit to provide a boost at frequencies surrounding 45hz. A bass boost should be treated similar to a gain control. Proper adjustment of this setting will be required to ensure safe operation of your amplifier and speakers. When boosting the lower frequencies, turning the input sensitivity down would be required. Failure to do so may result in permanent damage.

Low Level Output

Rather than running a 2nd RCA for multiple amplifiers, the low level output will provide a full-range signal. Fading capability will not be possible in this arrangement.

Specifications	T2-2250	T2-2100	T2-2450
Continuous Power:
· 4 ohms	55 × 2	100 × 2	55 × 4
· 2 ohms	80 × 2	190 × 2	80 × 4
Maximum Power:
· 4 ohms	140 × 2	240 × 2	140 × 4
· 2 ohms	320 × 2	360 × 2	200 × 4
Bridged Power:
· 4 ohms	160 × 1	400 × 1	160 × 2
THD:	0.05%	0.05%	0.04%
Signal to Noise Ratio	91db	101db	90db
Frequency Response:	10-110Khz	10-110Khz	10-110Khz
Speaker Impedance:	2 ohms	2 ohms	2 ohms
Damping Factor:	220 @ 4 ohms	240 @ 4 ohms	200 @ 4 ohms
Input Sensitivity:	300mV - 8V	300mV - 8V	300mV - 8V
Dimensions:	9'' × 11 3/4'' × 2''	9'' × 18 1/2'' × 2''	9'' × 17 5/8'' × 2''
	23cm x 30cm x 5cm	23cm x 47cm x 5cm	23cm x 45cm x 5cm
Fuse Rating:	25A	25A x 2	20A x 2

Specifications	T2-5450	T2-1200	T2-1400
Continuous Power:
· 4 ohms	55 × 4 + 170 × 1	200 × 1	400 × 1
· 2 ohms	85 × 4 + 240 × 1	300 × 1	550 × 1
Maximum Power:
· 4 ohms	140 × 4 + 300 × 1	350 × 1	800 × 1
· 2 ohms	320 × 4 + 410 × 1	470 × 1	1100 × 1
Bridged Power:
· 4 ohms
THD:	0.05%	0.12%	0.04%
Signal to Noise Ratio	96db	97db	97db
Frequency Response:	10-110Khz	10-200Khz	10-200Khz
Speaker Impedance:	2 ohms	2 ohms	2 ohms
Damping Factor:	230 @ 4 ohms	180 @ 4 ohms	190 @ 4 ohms
Input Sensitivity:	300mV - 8V	300mV - 8V	300mV - 8V
Dimensions:	9" x 20 5/8" x 2"	9" x 14 1/2" x 2"	9" x 18 1/2" x 2"
	23cm x 52cm x 5cm	23cm x 37cm x 5cm	23cm x 47cm x 5cm
Fuse Rating:	40A x 2	30A	30A x 2

Introduction

Ultimate +12V REM GND FUSE 20A 20A Chassis ground +12V switch +12V battery terminal SPEAKER + L - + R - Speaker terminals (stereo mode) Speaker terminals (bridge mode)

"Bass Boost" available on 2100 model only To head unit low level output Full-range output for other amplifiers Crossover Frequency 0dB 18dB LP Flat HP Gain 6V 0.3V Input R Output L Direct speaker input when low level is not available.

Diagram

T2-2450

Ultimate +12V REM GND FUSE Ch. 1/2 Ch. 3/4 Chassis ground +12V switch +12V battery terminal Speaker terminals (4 ch mode) Speaker terminals (3 ch mode)

Hi Level R L Ch. 3/4 Base Bount OFF ON Crossover LP Off HP 8V 0.3V Gain L Input Off HP Crossover 8V 0.3V Gain 40Hz 400Hz Frequency 40Hz 400Hz Frequency Hi Level R L Ch. 1/2 To head unit low level output Direct speaker input when low level is not available.

Ultimate T2 5450 +12V REM GND FUSE 40A 40A 40A 40A Chassis ground +12V switch +12V battery terminal SUB + FL - + FR - SO RL RR Speaker terminals (5 ch mode)

SUB + + FL - + FR - SB - RL - + RA

Speaker terminals
(3 ch mode)

Hi Level R L Gain Frequency RR Input Front Gain Frequency 8V 0.3V 40Hz= 400Hz FR 40Hz= 400Hz Subwoofer Foss Eust on/ off Fm HP RL FL Input Select FL/TR + RL/RR Gain 8V 0.3V Phase 160° Frequency 40Hz= 400Hz To head unit low level output

Direct speaker input when low level is not available.