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Rockford Fosgate 250.2 - page 1
punch competition Power amplifiers Operation & Installation 250. 1 250. 2 ® ® car audio fanatics for ® power power new chrome heatsink ...
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Rockford Fosgate 250.2 - page 2
Dear Customer, Congratulations on your purchase of the world's finest brand of car audio amplifiers. At Rockford Fosgate we are fanatics about musical reproduction at its best, and we are pleased you chose our product. Through years of engineering expertise, hand craftsmanship and critical testing procedures, we have created a wide range of pr ...
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Rockford Fosgate 250.2 - page 3
T ABLE OF C ONTENTS Introduction ................................................................................................................................................................. 1 Punch Accessory Pack .................................................................................................................................... ...
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Rockford Fosgate 250.2 - page 4
– 1 – P UNCH A MPLIFIER A CCESSORY P ACK The accessory pack shipped with the “250 series” Power amplifiers include the mounting hardware necessary to secure the ampliifer to the vehicle and to attach the end caps to the amplifier. Punch Power 250.2 Punch Power 250.1 Installation & Operation Manual Installation & Operation Manual Pun ...
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Rockford Fosgate 250.2 - page 5
– 2 – T ECHNICAL D ESIGN F EA TURES Many of the solutions to common design problems encountered by Rockford Fosgate engineers created entire new circuit designs as well as new ways to construct the Punch 250. 2 and 250. 1 Power Amplifiers. In our flagship amplifiers, no expense was spared in design and construction from the unique circuitry des ...
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Rockford Fosgate 250.2 - page 6
– 3 – ◆ DSM (Discrete Surface Mount Technology) The DSM ( D iscrete S urface M ount) manufacturing process combines the advantages of both discrete components and integrated circuitry. Rockford Fosgate is the only American amplifier manufacturer to have invested millions into this process. DSM components differ from conventional discrete comp ...
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Rockford Fosgate 250.2 - page 7
– 4 – Differential inputs only amplify the difference between two conductors. Note: the noise spikes appear on both the center conductor and the outer shield and therefore are not amplified. Center Conductor Outer Shield RCA Input Differential Input Figure 2 ◆ Balanced Line Inputs (250. 2 ) Using the Balanced Line Inputs provides the last wor ...
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Rockford Fosgate 250.2 - page 8
250. 2 D ESIGN F EA TURES 1. Cast Aluminum Chrome Heatsink – The cast aluminum heatsink of the Punch Power amplifier dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs. 2. End Caps – The unique end caps conceal the wiri ...
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Rockford Fosgate 250.2 - page 9
10. Input Sensitivity Controls – The input level controls are preset to match the output of most source units. They can be adjusted to match output levels from a variety of source units. 11. Internal Crossovers – These built-in crossover cards are configurable for a multitude of operating frequencies. The orientation of the card in its socket d ...
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Rockford Fosgate 250.2 - page 10
250. 1 D ESIGN F EA TURES 1. Cast Aluminum Chrome Heatsink – The cast aluminum heatsink of the Punch Power amplifier dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs. 2. End Caps – The unique end caps conceal the wiri ...
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Rockford Fosgate 250.2 - page 11
10. Internal Crossover – This built-in crossover card is configurable for a multitude of operating frequencies. The orientation of the card in its socket determines the function of high-pass, low-pass or full range operation. 11. Phase Switch – This switch enables you to easily invert the phase without having to disconnect the speaker wires. 12 ...
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Rockford Fosgate 250.2 - page 12
– 9 – I NST ALLA TION C ONSIDERA TIONS T ools Needed The following is a list of tools you will need for installing the “250 Series” Power amplifiers: Allen wrenches 9/64" & 3/32" (included) Wire Cutters Wire strippers Voltmeter Battery post wrench Wire crimpers Electric hand drill and assorted bits Assorted connectors This sec ...
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Rockford Fosgate 250.2 - page 13
M OUNTING L OCA TION S The mounting location and position of your amplifier will have a great effect on its ability to dissipate the heat generated under normal operation. The design of our cast aluminum heatsink serves to easily dissipate the heat generated over a wide range of operating conditions. However, to maximize the performance of your amp ...
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Rockford Fosgate 250.2 - page 14
W IRING T HE S YSTEM CAUTION: 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 induce noise into the audio system. 1. Configure the internal XCard crossovers prior to installation. Refer to the “Using the Signal Switching Network? ...
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Rockford Fosgate 250.2 - page 15
U SING P ASSIVE C ROSSOVERS A passive crossover is a circuit that uses capacitors and/or coils and is placed on speaker leads between the amplifier and speaker. The crossover delegates a specific range of frequencies to the speaker for optimum driver performance. A crossover network can perform one of three functions: High-Pass (capacitors), Low-Pa ...
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Rockford Fosgate 250.2 - page 16
T ABLE OF C ROSSOVER C OMPONENT V ALUES 6dB/Octave Low-Pass 6dB/Octave High-Pass Freq. Hertz Speaker Impedance 80 4.1mH 1000 µ F 8.2mH 500 µ F 16mH 250 µ F 100 3.1mH 800 µ F 6.2mH 400 µ F 12mH 200 µ F 130 2.4mH 600 µ F 4.7mH 300 µ F 10mH 150 µ F 200 1.6mH 400 µ F 3.3mH 200 µ F 6.8mH 100 µ F 260 1.2mH 300 µ F 2.4mH 150 µ F 4.7mH 75 µ ...
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Rockford Fosgate 250.2 - page 17
U SING THE XC ARD The crossover functions are controlled through the use of an XCard and can be set for high-pass, low-pass or full range operation. The XCard shipped with your amplifier is set for Full Range. Each crossover card has two faces: one face operates Full Range , the other has arrows to indicate the edge for selecting HP (high-pass) or ...
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Rockford Fosgate 250.2 - page 18
– 15 – XC ARD R ESISTOR C HART Frequency R1 R2 20Hz 169k Ω 169k Ω 25Hz 133k Ω 133k Ω 30Hz 110k Ω 110k Ω 35Hz 95.3k Ω 95.3k Ω 40Hz 84.5k Ω 84.5k Ω 45Hz 75k Ω 75k Ω 50Hz 68.1k Ω 68.1k Ω 55Hz 61.9k Ω 61.9k Ω 60Hz 56.2k Ω 56.2k Ω 65Hz 52.3k Ω 52.3k Ω 70Hz 48.7k Ω 48.7k Ω 75Hz 45.3k Ω 45.3k Ω 80Hz 42.2 ...
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Rockford Fosgate 250.2 - page 19
250. 2 I NST ALLA TION – 16 – *Keep wire as short as possible. 250. 2 Power Connections (Option #1) 250. 2 Power Connections (Option #2) *Keep wire as short as possible. I N S T A L L A T I O N ® ® REM Power Connect to remote turn-on lead of source unit. Connect to B+ of battery with a 60 amp fuse. Connect to chassis ground of vehicle* Dual B ...
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Rockford Fosgate 250.2 - page 20
– 17 – • RCA inputs are connected to both left and right channels • Signal Input Switch selected to Unbalanced for RCA input • Left Phase Switch set to 0 ° • Right Phase Switch set to 180 ° for stereo/mono operation • All speaker polarity on right channel is inverted to correct for signal phase • Gain for left and right channels s ...
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Rockford Fosgate 250.2 - page 21
– 18 – • RCA inputs are connected to both left and right channels • Signal Input Switch selected to Unbalanced for RCA input • Left Phase Switch set to 0 ° • Right Phase Switch set to 180 ° • Inverting the right signal will allow the bridged woofer to operate correctly • Gain for left and right channels set equally to balance the ...
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Rockford Fosgate 250.2 - page 22
– 19 – U SING THE 250. 2 S IGNAL S WITCHING N ETWORK The Punch 250. 2 Power amplifier has a crossover switching network which enables you to: • “Audiophile Bypass” the 250. 2 and Pass-Thru • Configure a 12dB per octave filter for both 250. 2 and Pass-Thru • “Audiophile Bypass” the 250. 2 and configure a 12dB per octave filter for ...
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Rockford Fosgate 250.2 - page 23
– 20– XCard 1 XCard 2 XCard not required. • 250. 2 bypasses the circuitry of XCard 1 and XCard 2 • Pass-Thru bypasses the circuitry of XCard 1 and XCard 2 • The 250. 2 and Pass-Thru are in Audiophile Bypass mode which maintains signal integrity resulting in a better sounding amplifier • The XCards do not need to be inserted to allow the ...
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Rockford Fosgate 250.2 - page 24
– 21 – • 250. 2 uses output from XCard 1 • Pass-Thru uses output from XCard 2 Configure a 12dB per octave filter for both the 250. 2 and Pass-Thru. I N S T A L L A T I O N ® ® XCard 1 XCard 2 250x 2 2 XCard* Pass Thru XCard* HP LP Unbal. Pass Thru Bal. Input 0 ° -180 ° EZ-180 ° -0 ° Bridged Gain Gain Bal. + – + – 20Hz 20kHz 12dB/O ...
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Rockford Fosgate 250.2 - page 25
– 22 – XCard 1 XCard 2 LP Pass Thru XCard XCard not required. “Audiophile Bypass” the 250. 2 and configure a 12dB per octave filter for the Pass-Thru. • 250. 2 bypasses the circuitry of XCard 1 • Pass-Thru uses output from XCard 2 • The 250. 2 is in Audiophile Bypass mode which maintains signal integrity resulting in a better sounding ...
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Rockford Fosgate 250.2 - page 26
– 23 – Configure a 12dB per octave bandpass filter for the 250. 2 and “Audiophile Bypass” the Pass-Thru. Configure a 24dB per octave filter for the 250. 2 and “Audiophile Bypass” the Pass-Thru. I N S T A L L A T I O N ® ® *Note: Both XCard inserted as HP or LP. • 250. 2 uses output from XCard 1 and XCard 2 • Pass-Thru bypasses XCa ...
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Rockford Fosgate 250.2 - page 27
The Balanced Line Inputs can be utilized with the optional Balanced Line Transmitter. Unlike standard RCA cables that use two wires to carry the audio signal and ground, balanced lines use three. In a balanced line, the output signal and its inverted replica travel down a pair of wires where the ground connects via the shield. As the amplifier rece ...
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Rockford Fosgate 250.2 - page 28
– 25 – Level Setting the BLT • Disconnect Speaker(s) from the 250. 2 • CD Software used to set levels is a test tone of 1kHz at “0dB” or “All Bits High” • Source Unit set to 3/4 volume (or maximum unclipped output) • Remove BLT Cover to access test pads and gain pots • AC Voltmeter set to AC Volts • AC Voltmeter “–” co ...
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Rockford Fosgate 250.2 - page 29
250. 1 I NST ALLA TION – 26 – 250. 1 Power Connections (Option #1) + – 250. 1 Power Connections (Option #2) + – *Keep ground connections as close to each other as possible. Less than 18" Less than 18" *Keep ground connections as close to each other as possible. I N S T A L L A T I O N ® ® Connect to remote turn-on lead of source ...
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Rockford Fosgate 250.2 - page 30
– 27 – Mono Operation • Signal Input Switch set to L+R for RCA input • Phase Switch set to 0 ° • Impedance should be 2 Ω minimum • XCard can be set for High-Pass , Low-Pass or Full Range I N S T A L L A T I O N ® ® R Pass Thru L Pass Thru Power Gain X-Over 24dB/12dB/0dB L + R / L (Mono) RCA Inputs 0 ° -180 ° –+ RCA Input 2 Ω ...
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Rockford Fosgate 250.2 - page 31
– 28 – • Signal Input Switch (250. 1 #1 / #2) set to L(Mono) for single RCA input ) • Phase Switch (250. 1 #1/2) set to 0 ° • Impedance for each amplifier should be 2 Ω minimum • XCard for each amplifier can be set for High-Pass, Low-Pass or Full Range Stereo Operation using two Punch 250. 1 Power Amplifiers I N S T A L L A T I O N ? ...
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Rockford Fosgate 250.2 - page 32
– 29 – Stereo/Mono Operation I N S T A L L A T I O N ® ® 250. 1 #2 250. 1 #1 – + RCA Input + – LR +– R Pass Thru L Pass Thru Power Gain X-Over 24dB/12dB/0dB L + R / L (Mono) RCA Inputs 0 ° -180 ° Speaker – + L (Mono) R 2 Ω minimum high frequency 4 Ω minimum low frequency + Speaker T erminal – Speaker T erminal R Pass Thru L Pa ...
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Rockford Fosgate 250.2 - page 33
– 30 – Bridged Mono Operation I N S T A L L A T I O N ® ® 250. 1 #2 250. 1 #1 RCA Input +– Power Gain X-Over 24dB/12dB/0dB L + R / L (Mono) RCA Inputs 0 ° -180 ° Speaker – + L (Mono) R 4 Ω minimum + Speaker T erminal R Pass Thru L Pass Thru R Pass Thru L Pass Thru Power Gain X-Over 24dB/12dB/0dB L + R / L (Mono) RCA Inputs 0 ° -180 ? ...
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Rockford Fosgate 250.2 - page 34
U SING THE 250. 1 S IGNAL S WITCHING N ETWORK – 31 – • Xover is set to 0dB • The 250. 1 is in Audiophile Bypass mode which maintains signal integrity resulting in a better sounding amplifier • Pass-Thru has Full Range output only • The XCard does not need to be inserted to allow the 250. 1 to operate “Audiophile Bypass” the 250. 1 I ...
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Rockford Fosgate 250.2 - page 35
– 32 – • Xover is set to 12dB • Pass-Thru has Full Range output only Configure a 12dB per octave filter for the 250. 1 I N S T A L L A T I O N ® ® – + 20Hz 20kHz Full Range +– Power Gain X-Over 24dB/12dB/0dB L + R / L (Mono) RCA Inputs 0 ° -180 ° Speaker – + R Pass Thru L Pass Thru L (Mono) R XCard LP 20Hz 20kHz 12dB/Octave Low-Pa ...
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Rockford Fosgate 250.2 - page 36
– 33 – Configure a 24dB per octave filter for the 250. 1 • Xover is set to 24dB • Pass-Thru has Full Range output only • By switching the crossover to 24dB, the signal is routed through the XCard twice I N S T A L L A T I O N ® ® – + 20Hz 20kHz Full Range +– Power Gain X-Over 24dB/12dB/0dB L + R / L (Mono) RCA Inputs 0 ° -180 ° Sp ...
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Rockford Fosgate 250.2 - page 37
S YSTEM D IAGRAMS – 34 – 250 W att System (rated @ 4 ohms) Total Power Delivery (RMS) Tweeters 450 Watts Midrange 450 Watts PWR-14X PWR-54 4 Ω 80Hz HP 80Hz HP PWR-14X TX-4183 TX-4183 18dB/octave HP 3kHz-20kHz 18dB/octave HP 3kHz-20kHz 24dB/octave HP 80Hz-20kHz PWR-14X PWR-54 4 Ω PWR-14X TX-4183 TX-4183 24dB/octave HP 80Hz-20kHz 250. 2 AUD S ...
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Rockford Fosgate 250.2 - page 38
– 35 – 500 W att System (rated @ 4 ohms) Total Power Delivery (RMS) Tweeters 450 Watts Midrange 450 Watts Woofers 500 Watts • A sub-sonic filter is a high-pass filter that limits the input signal below a certain motion below that frequency. At very low frequencies a woofer has no output, just motion. If you try to drive this woofer at these l ...
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Rockford Fosgate 250.2 - page 39
• A sub-sonic filter is a high-pass filter that limits the input signal below a certain motion below that frequency. At very low frequencies a woofer has no output, just motion. If you try to drive this woofer at these lower frequencies, the woofer could self-destruct. Please refer to the crossover section of the manual or see your local Authoriz ...
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Rockford Fosgate 250.2 - page 40
1000 W att System (rated @ 4 ohms) Total Power Delivery (RMS) Tweeters 450 Watts Midrange 450 Watts Midbass 250 Watts Woofers 1000 Watts • A sub-sonic filter is a high-pass filter that limits the input signal below a certain motion below that frequency. At very low frequencies a woofer has no output, just motion. If you try to drive this woofer a ...
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Rockford Fosgate 250.2 - page 41
R OCKFORD F OSGA TE A CCESSORIES ® Balanced Line T ransmitter (FG-BL T) The Balanced Line Transmitter converts signal RCA cables from the source unit to balanced signals. The BLT improves sound quality in the system by eliminating noises generated by vehicle electrical systems. The BLT is available for Rockford Fosgate products that offer a balanc ...
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Rockford Fosgate 250.2 - page 42
® XCard Crossovers Additional crossover card frequencies are available for specialized requirements. You can get the following XCards from your Authorized Rockford Fosgate Dealer. Energy Storage Capacitors Energy Storage Capacitors are used to provide extra current needed by amplifiers to reproduce musical transients. The capacitors also have the ...
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Rockford Fosgate 250.2 - page 43
Symptom Diagnosis Remedy T ROUBLESHOOTING Amplifier does not turn on. (Power LED is off) Voltage applied to the REM terminal of the amplifier is not between 10.5 and 15.5 volts or there is no voltage present. Voltage to the B+ terminal of the amplifier is not between 10.5 and 15.5 volts or there is no voltage present. Amplifier is not properly grou ...
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Rockford Fosgate 250.2 - page 44
– 41 – Symptom Diagnosis Remedy Speaker Output Low or Distorted Input gain(s) for amplifier incorrectly set. Source unit output too low or source unit has no output. Phase selection of amplifier incorrectly se- lected or speakers wired out of polarity from the left to right channel. XCards are missing or not placed properly in crossover slots a ...
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Rockford Fosgate 250.2 - page 45
Input gain(s) for amplifier incorrectly set. Source unit output too low. XCards are missing or not placed properly in crossover slots and/or switches are not properly selected. Low battery voltage or large voltage drops to the amplifier under load. RCA cable or amplifier connected to Pass- Thru output is defective. Readjust input gains of amplifier ...
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Rockford Fosgate 250.2 - page 46
A UTOSOUND 2000's Q UICK C HECK FOR T ROUBLESHOOTING C AR A UDIO S YSTEMS Preface: All audio systems exhibit noise; however , if the level of noise is low enough, and the signal level high enough, noise should not be a problem. This means that it is very important that the signal level throughout the system be optimized BEFORE dealing with you ...
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Rockford Fosgate 250.2 - page 47
III. MOVE THE DECK. If you're at this step, it's time to turn your system into an “amplified deck” by temporarily relocating the deck right ON TOP of the clean amplifier . Then using very , very short signal cables, connect the output of the deck into the input of the amp and test for noise. Play a zero bit track – silence – and m ...
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Rockford Fosgate 250.2 - page 48
–60 ° (Cap) 0 ° (Ind) +60 ° 1 Ω 2 Ω 4 Ω Impedance 8 Ω 10V 30V 50V 8 Ω –60 ° –30 ° 0 ° 30 ° 60 ° 4 Ω –60 ° –30 ° 0 ° 30 ° 60 ° 2 Ω –60 ° –30 ° 0 ° 30 ° 60 ° 1 Ω –60 ° –30 ° 0 ° 30 ° 60 ° 85 W 84 W 84 W 84 W 86 W 162 W 157 W 156 W 157 W 162 W 273 W 258 W 251 W 256 W 271 W 390 W 356 W 346 W 352 ...
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Rockford Fosgate 250.2 - page 49
– 46 – 250. 2 S PECIFICA TIONS Dynamic Power Rating (IHF-202 Standard) - Measured at 14.4V Per channel into a 4 Ω load 180 Watts Per channel into a 2 Ω load 310 Watts Bridged into a 4 Ω load 620 Watts Continuous Power Rating (Competition Standard) - Measured at 13.8 Battery Volts RMS continuous power per channel , both channels driven int ...
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Rockford Fosgate 250.2 - page 50
250. 1 S PECIFICA TIONS – 47 – Dynamic Power Rating (IHF-202 Standard) - Measured at 14.4V Mono into a 4 Ω load 420 Watts Mono into a 2 Ω load 710 Watts Bridged (using 2 Punch 250m) into a 4 Ω load 1420 Watts* Continuous Power Rating (Competition Standard) – Measured at 13.8 Volts RMS continuous power mono , into a 4 Ω load from 20-20 ...
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Rockford Fosgate 250.2 - page 51
– 48 – L IMITED W ARRANTY I NFORMA TION Rockford Corporation offers a limited warranty on Rockford Fosgate products on the following terms: • Length of Warranty 3 years on electronics 90 days on electronic B-stock (receipt required) 2 years on source units 30 days on speaker B-stock (receipt required) • What is Covered This warranty applies ...
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Rockford Fosgate 250.2 - page 52
I NFORMA TION I NTERNA TIONAL – 49 – ...
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Rockford Fosgate 250.2 - page 53
LEA DETENIDAMENTE LAS SIGUIENTES INSTRUCCIONES DE INSTALACIÓN DEL PRODUCTO. EVITARA POSIBLES DAÑOS A VD., AL VEHÍCULO O AL PRODUCTO. Los amplificadores de “la serie 250” representan lo ultimo y mejor que Rockford Fosgate puede ofrecerle. Muchas soluciones que nuestros ingenieros han inventado serian consideradas absolutamente desproporcionad ...
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Rockford Fosgate 250.2 - page 54
Operación mono/estéreo • Los conectores de entrada RCA se conectan a ambos canales derecho e izquierdo • El conmutador de señal de entrada se colocara en Unbalanced par a las entradas RCA • El conmutador de fase del canal izquierdo estará en 0 grados • El conmutador de fase del canal derecho estará en 180 grados cuando se requiera oper ...
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Rockford Fosgate 250.2 - page 55
ATTENTION: Veuillez lire les instructions suivants pour l'nstallation de ce produit. Ne pas les suivre pourrait causer des blessures ou endommager le véhicule. La série d'amplificateurs Power 250 est la vitrine technologique de Rockford Fosgate. Nos ingénieurs utilisent ici des technologies considérées hors d'atteinte par d&apos ...
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Rockford Fosgate 250.2 - page 56
Opération stéréo/mono (Tri- mode) • Les entrées RCA sont connectées aux canaux gauche et droit • L'interrupteur “Signal Input” doit se trouver dans la position “Unbalanced” pour utiliser l'entrée RCA • L'interrupteur “Left Phase” doit se trouver dans la position “0 ° ” • L'interrupteur “Right Pha ...
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Rockford Fosgate 250.2 - page 57
Bitte lesen Sie diese Gebrauchsanleitung zuerst sorgfältig durch. Das kann Sie vor dem falschen Einsatz, Ausfallen oder sogar Beschädigung des Produktes oder Ihres Fahrzeuges schützen. Die “250 Serie” Power Verstärker repräsentiert das Beste, was Rockford Fosgate anzubiete hat! Unsere Ingenieure haben in diesen Verstärkern technische Feat ...
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Rockford Fosgate 250.2 - page 58
Stereo/Mono Betrieb • Chinch Eingänge des rechten und linken Kanales anschlieben • Signal Eingangsschalter auf “unbalanced” für den Betrieb mit Chinch-Kabel stellen • Linken Phasen Schalter auf 0 ° stellen • Rechten Phasen Schalter auf 180 ° stellen für den Stereo/Mono Betrieb • Die Lautsprecher-Phase des rechten Kanales umkehren ...
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Rockford Fosgate 250.2 - page 59
PREGO LEGGERE LE SEGUENTI ISTRUZIONI PER L'INSTALLAZIONE DI QUESTO PRODOTTO, IL NON SEGUIRLE POTREBBE RISULTARE SERIAMENTE DANNOSO PER LA PERSONA O PER IL VEICOLO. La serie 250 Power rappresenta il massimo che Rockford Fosgate ha da offrire! I nostri ingenieri hanno sviluppato delle innovazioni tecnologiche che per altri costruttori sono consi ...
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Rockford Fosgate 250.2 - page 60
Stereo/Mono Operation • RCA inputs non sono collegati ad entrambi, i canli destro e sinistro • Interruttore di segnale input selezionato per il non bilanciamento per l'input RCA • Fase sinistra dell'interruttore posizionata su 0 ° . • Fase destra dell'interruttore posizionata su 180 ° per l'operazione stereo/mono • T ...
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Rockford Fosgate 250.2 - page 61
Rockford Fosgate Rockford Corporation 546 South Rockford Drive Tempe, Arizona 85281 U.S.A. In U.S.A., (602) 967-3565 In Europe, Fax (49) 4202-9750-50 In Japan, Fax (81) 559-79-1265 MAN-1529-B 10/97 MADE IN THE USA This product is designed, developed and assembled in the USA by a dedicated group of American workers. The majority of the components us ...
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