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| Digital GD Series GD-1200 GD-2000 GD-3000 |
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When Style & Digital Performance
are Combined, You get... GD series
The Interfire GD series Class-D digital amplifiers have been proving themselves all across the U.S. especially in all of the competition lanes. The GD series are true 1 ohm stable amplifiers with all the features needed for pushing out the absolute most power per square inch. At only 20 and 12 inches long, the GD-3000 & GD-2000 gives you 2200W and 1200W RMS continuous. Measuring just over 9 inches, the GD-1200 delivers 700W RMS continuously. The GD series amplifiers feature a remote controllable bass boost via the included bass boost remote controller. A quick look inside reveals some good craftsmanship, high temperature handling capacitors (105˚), over-wrapped torroidial coils, wide trace separate board outputs, gold plated bus bars, intelligent protection circuitry and full Bridge Syncability. |
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Features
- Class-D Digital Technology
- High Efficiency PWM Power Supply
- Silver Plated Machined Power Terminals
- High Temperature Power Capacitors (105˚C)
- Gold Plated Bus Bars
- Overwrapped Torroidial Coils
- Fully Variable Low-Pass Crossovers
- Heavy Duty Power Capacitors
- Super Small Footprint
- Soft Remote On/Off Circuitry
- Intelligent Protection:
- Over Voltage/Thermal/DC Offset/Short
- Bridge Sync Capable
- Need External Fuse-minimum 180amp (GD-3000)
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| Model |
GD-1200 |
GD-2000 |
GD-3000 |
| Number of Channels |
1 |
1 |
1 |
| Max Power @ 1 Ohm (13.8V) |
1200W |
2000W |
3000W |
| RMS Power @ 4 Ohm (13.8V) |
300W |
500W |
700W |
| RMS Power @ 2 Ohm (13.8V) |
500W |
900W |
1200W |
| RMS Power @ 1 Ohm (13.8V) |
700W |
1200W |
2200W |
| Max Power @ 4 Ohm (13.8V) |
500W |
700W |
900W |
| Max Power @ 2 Ohm (13.8V) |
800W |
1200W |
1600W |
| Signal to Noise Ratio |
>90dB |
>90dB |
>90dB |
| Bass Boost (45Hz, Variable) |
0-18dB |
0-18dB |
0-18dB |
| Fuse Rating |
3 x 25 Amp |
3 x 30 Amp |
External Fuse (180) |
| Efficiency (Typical) |
86% |
86% |
86% |
| Line Level Output |
No |
No |
No |
| Bridge-Sync |
Yes |
Yes |
Yes |
| Low-Pass Crossover Frequency |
50Hz - 250Hz @ 24dB / Oct. variable |
50Hz - 250Hz @ 24dB / Oct. variable |
50Hz - 250Hz @ 24dB / Oct. variable |
| Remote Control Bass Boost |
Yes |
Yes |
Yes |
| Dimentions (L X W X H) |
9 1/8" x 10" x 2 1/4" |
12 1/8" x 10" x 2 1/4" |
20 1/8" x 10" x 2 1/4" |
| MSRP |
$576 |
$792 |
$1,092 |
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 Want total control of your amplifier? The GD Amp comes with an included remote bass boost controller which can be mounted under your dash or in a center console. With this, you have total bass boost control from 0 - 18dB. |
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 Over-wrapped torroidial coils, gold plated bus bars, high temperature capacitors, bridge-sync ability and intelligent protection circuitry puts the G series amplifiers in a class of their own. |
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| 2 Channel G Series G2-600G2-800 G2-1200 |
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Your right choice for power!
High voltage RCA input (up to 17V), bass boost, gold plated bus bars, nickel plated input and output terminals and built in crossovers. The technology is definitely inside. The G series amplifiers incorporate the use of high power overwrapped torroidial coils along with large heavy duty power capacitors and a protection circuit that will ensure that your G series amp keeps playing on and on! |
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Features
- 4 Ohm Mono / 2 Ohm Stereo stable
- Bass Boost
- Built in crossover
- Thermal / Short Protection
- High Power Torroidial Coils
- Heavy Duty Power Capacitors
- Nickel Plated Input/Output Terminals
- Soft Remote On/Off Circuitry
- Remote Bass Boost Control ( Option: 2ch only )
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| Model |
G2-600 |
G2-800 |
G2-1200 |
| Number of Channels |
2 |
2 |
2 |
| Max Power |
600W |
800W |
1200W |
| Peak Power @ 2 Ohm Stereo |
300 x 2 |
400 x 2 |
600 x 2 |
| RMS Power @ 4 Ohm Mono |
300 x 1 |
400 x 1 |
600 x 1 |
| RMS Power @ 2 Ohm Stereo |
140 x 2 |
210 x 2 |
350 x 2 |
| RMS Power @ 4 Ohm Stereo |
100 x 2 |
150 x 2 |
225 x 2 |
| Signal to Noise Ratio |
95dB |
95dB |
95dB |
| Damping Factor (4 Ohm) |
>200 |
>200 |
>200 |
| Fuse Rating |
1 x 40 Amp |
2 x 30 Amp |
2 x 40 Amp |
| THD (@ 4 Ohm) |
0.03% |
0.03% |
0.03% |
| Bass Boost (45Hz, Variable) |
0-18dB variable |
0-18dB variable |
0-18dB variable |
| Crossover Frequency (Low/High-pass) |
50-250Hz Variable |
50-250Hz Variable |
50-250Hz Variable |
| Dimentions (L X W X H) |
10" x 9 3/4" x 2 1/4" |
13" x 9 3/4" x 2 1/4" |
16" x 9 3/4" x 2 1/4" |
| MSRP |
$270 |
$333 |
$438 |
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G-Remote
Want total control of your 2-channel amplifier? The G2 series has the option for a remote bass boost controller which can mount under your dash or in a center console. With this you have total control from 1dB-18dB. |
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| 4 Channel G Series G4-600 G4-800 G4-1000 |
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Your right choice for power!
Interfire designed the G series amplifiers specifically for the audio enthusiast needing the most power for the money. The G series amplifiers provide the absolute most bang for the buck. These amps have features only found in the more expensive amplifiers. |
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Features
- 4 Ohm Mono / 2 Ohm Stereo Stable
- Bass Boost
- Independent Front & Rear Crossovers
- Thermal / Short Protection
- High Power Torroidial Coils
- Heavy Duty Power Capacitors
- Nickel Plated Plated Input/Output Terminals
- Soft Remote On/Off Circuitry
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| Model |
G4-600 |
G4-800 |
G4-1000 |
| Number of Channels |
4 |
4 |
4 |
| Max Power |
600W |
800W |
1000W |
| Peak Power @ 4 Ohm Mono |
300 x 2 |
400 x 2 |
500 x 2 |
| Peak Power @ 2 Ohm Stereo |
150 x 4 |
200 x 4 |
250 x 4 |
| RMS Power @ 4 Ohm Stereo |
60 x 4 |
90 x 4 |
110 x 4 |
| RMS Power @ 2 Ohm Stereo |
75 x 4 |
125 x 4 |
155 x 4 |
| RMS Power @ 4 Ohm Mono |
105 x 2 |
175 x 2 |
225 x 2 |
| Signal to Noise Ratio |
95dB |
95dB |
95dB |
| Damping Factor (4 Ohm) |
>200 |
>200 |
>200 |
| Fuse Rating |
1 x 40 Amp |
2 x 30 Amp |
2 x 40 Amp |
| THD (@ 4 Ohm) |
0.03% |
0.03% |
0.03% |
| Bass Boost (45Hz, Variable) |
0-18dB variable |
0-18dB variable |
0-18dB variable |
| Crossover Frequency (Low/High-pass) |
50-500Hz Variable |
50-500Hz Variable |
50-500Hz Variable |
| Dimentions (L X W X H) |
12" x 9 3/4" x 2 1/4" |
13" x 9 3/4" x 2 1/4" |
16" x 9 3/4" x 2 1/4" |
| MSRP |
$294 |
$339 |
$408 |
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| 5 Channel G Series G5-900 |
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Your right choice for power!
Interfire designed the G series amplifiers specifically for the audio enthusiast needing the most power for the money. The G series amplifiers provide the absolute most bang for the buck. These amps have features only found in the more expensive amplifiers. |
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Features
- 4 Ohm Mono / 2 Ohm Stereo Stable
- Bass Boost
- Independent Front & Rear Crossovers
- Thermal / Short Protection
- High Power Torroidial Coils
- Heavy Duty Power Capacitors
- Nickel Plated Plated Input/Output Terminals
- Soft Remote On/Off Circuitry
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| Model |
G5-900 |
| Number of Channels |
5 |
| Max Power |
900W |
| Peak Power @ 4 Ohm Mono |
250 x 2 + 400 x 1 |
| Peak Power @ 2 Ohm Stereo |
130 x 4 + 330 x 1 |
| RMS Power @ 4 Ohm Stereo |
60 x 4 + 160 x 1 |
| RMS Power @ 2 Ohm Stereo |
85 x 4 + 320 x 1 |
| RMS Power @ 4 Ohm Mono |
120 x 2 + N/A |
| Signal to Noise Ratio |
95dB |
| Damping Factor (4 Ohm) |
>200 |
| Fuse Rating |
2 x 40 Amp |
| THD (@ 4 Ohm) |
0.03% |
| Bass Boost (45Hz, Variable) |
N/A |
| Crossover Frequency (Low/High-pass) |
50-500Hz Variable |
| Dimentions (L X W X H) |
16" x 9 3/4" x 2 1/4" |
| MSRP |
$408 |
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| T-series |
| Amplifier 2 Channel T-270 T-2100 T-2130 |
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Features
- Four class "AB" high-current dual discrete drive stages
- Class "AB" technology MOSFET PWM power supply
- Bridgeable Tri-Mode operation
- Continuously valiable 12dB/octave high pass & 12dB/octave low-pass crossover
- Subwoofer variable crossover for deep bass control
- Enhance bass boost + 12dB@45hz
- Silver plated RCA, power & speaker terminal
- Soft start & muting
- Overload, Thermal and short circuit protection
- Power & protection indicator
- Bass level remote control (16.4ft) - model T2130, T1000M only
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| Model No. RMS |
T-270 |
T-2100 |
T-2130 |
| Channel |
2ch |
2ch |
2ch |
| Total Max Power |
900 watts |
1200 watts |
1500 watts |
| 4 Ohm at 14.4V 0.3%THD ( RMS ) |
100w x 2ch |
150w x 2ch |
200w x 2ch |
| 4 Ohm at 14.4V ( MAX ) |
180w x 2ch |
290w x 2ch |
340w x 2ch |
| 2 Ohm at 14.4V 0.3%THD ( RMS ) |
160w x 2ch |
250w x 2ch |
310w x 2ch |
| 2 Ohm at 14.4V ( MAX ) |
250w x 2ch |
400w x 2ch |
500w x 2ch |
| 1 Ohm at 14.4V 0.3%THD |
N/A |
N/A |
N/A |
| Mono Bridge ( RMS ) |
310w x 1 |
490w x 1ch |
630w x 1ch |
| Power Supply |
Full PWM |
Full PWM |
Full PWM |
| Damping Factor @ 4 Ohms / 100Hz |
＞100 |
＞100 |
＞100 |
| S/N Ratio(A-Weight) |
＞90dB |
＞90dB |
＞90dB |
| THD |
<0.1% |
<0.1% |
<0.1% |
| Crossover S/W for 1+2 channel 12dB/Oct. |
HP/FULL/LP |
HP/FULL/LP |
HP/FULL/LP |
| Variable Hi-Pass |
80 Hz - 1.2kHz |
80 Hz - 1.2kHz |
80 Hz - 1.2kHz |
| Variable Low-Pass |
50 Hz - 250 Hz |
50 Hz - 250 Hz |
50 Hz - 250 Hz |
| Bass Boost, 12dB @ 45 Hz" |
Yes |
Yes |
Yes |
| Heatsink Length (mm) |
10 3/4 x 10 x 2 1/8 |
13 x 10 x 2 1/8 |
15 x 10 x 2 1/8 |
| Fuse Rating |
1 x 30 Amp |
2 x 25 Amp |
2 x 30 Amp |
| MSRP |
$222 |
$291 |
$366 |
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| T-series |
| Amplifier 4 Channel T-460 T480 |
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Features
- Four Class “AB” high-current dual discrete drive stages
- Class “AB” technology MOSFET PWM power supply
- Bridgeable & Tri-mode operation
- Continuously variable 12dB/octave high pass & 12dB/octave low pass crossover
- Subwoofer variable crossover for deep bass control
- Enhanced bass boost +12dB@45hz
- Soft start & muting
- Overload, thermal and short circuit protection
- Power & protection indicator
- Silver plated RCA, power & speaker terminal
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| Model No. RMS |
T-460 |
T-480 |
| Channel |
4ch |
4ch |
| Total Max Power |
800 watts |
1000 watts |
| 4 Ohm at 14.4V 0.3%THD ( RMS ) |
50w x 4ch |
80w x 4ch |
| 4 Ohm at 14.4V ( MAX ) |
120w x 4ch |
130w x 4ch |
| 2 Ohm at 14.4V 0.3%THD ( RMS ) |
85w x 4ch |
110w x 4ch |
| 2 Ohm at 14.4V ( MAX ) |
130w x 4ch |
190w x 4xh |
| 1 Ohm at 14.4V 0.3%THD |
N/A |
N/A |
| Mono Bridge ( RMS ) |
170w x 2ch |
220w x 2ch |
| Power Supply |
Full PWM |
Full PWM |
| Damping Factor @ 4 Ohms / 100Hz |
＞100 |
＞100 |
| S/N Ratio(A-Weight) |
＞90dB |
＞90dB |
| THD |
<0.1% |
<0.1% |
| Crossover S/W for 1+2 channel 12dB/Oct. |
HP/FULL/LP |
HP/FULL/LP |
| Variable Hi-Pass |
50Hz - 500Hz |
50Hz - 500Hz |
| Variable Low-Pass |
50Hz - 500Hz |
50Hz - 500Hz |
| Bass Boost, 12dB @ 45 Hz" |
Yes |
Yes |
| Heatsink Length (mm) |
10 3/4 x 10 x 2 1/8 |
13 x 10 x 2 1/8 |
| Fuse Rating |
1 x 30 Amp |
2 x 25 Amp |
| MSRP |
$255 |
$288 |
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| T-series |
| Mono Block Amplifier T-1000M / T-1500M |
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| Model No. RMS |
T-1000M |
T-1500M |
| Channel |
1ch Mono A/B |
1ch Mono Block A/B |
| Total Max Power |
1200 watts |
1600 watts |
| 4 Ohm at 14.4V 0.3%THD ( RMS ) |
330w x 1ch |
450w x 1ch |
| 4 Ohm at 14.4V ( MAX ) |
630w x 1ch |
850w x 1ch |
| 2 Ohm at 14.4V 0.3%THD ( RMS ) |
510w x 1ch |
750w x 1ch |
| 2 Ohm at 14.4V ( MAX ) |
1000w x 1ch |
1500w x 1ch |
| 1 Ohm at 14.4V 0.3%THD |
N/A |
N/A |
| Mono Bridge ( RMS ) |
N/A |
N/A |
| Power Supply |
Full PWM |
Full PWM |
| Damping Factor @ 4 Ohms / 100Hz |
＞150 |
＞150 |
| S/N Ratio(A-Weight) |
＞90dB |
＞90dB |
| THD |
<0.1% |
<0.1% |
| Crossover S/W for 1+2 channel 12dB/Oct. |
N/A |
N/A |
| Variable Hi-Pass |
N/A |
N/A |
| Variable Low-Pass |
50Hz - 250Hz |
50Hz - 250Hz |
| Bass Boost, 12dB @ 45 Hz" |
Yes |
Yes |
| Heatsink Length (mm) |
13 x 10 x 2 1/8 |
15 3/4” x 10” x 2 1/8” |
| Fuse Rating |
2 x 30 Amp |
3 x 25 amp |
| MSRP |
$297 |
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| T-series |
| Digital Amplifier T-3000D |
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| Model No. RMS |
T-3000D |
| Channel |
1ch Mono |
| Total Max Power |
3000 watts |
| 4 Ohm at 14.4V 0.3%THD ( RMS ) |
400w x 1ch |
| 4 Ohm at 14.4V ( MAX ) |
700w x 1ch |
| 2 Ohm at 14.4V 0.3%THD ( RMS ) |
750w x 1ch |
| 2 Ohm at 14.4V ( MAX ) |
1500w x 1ch |
| 1 Ohm at 14.4V 0.3%THD |
3000W |
| Mono Bridge ( RMS ) |
N/A |
| Power Supply |
Full PWM |
| Output Power Circuit Configuration |
Class D |
| Miscellaneous Spec |
| Damping Factor @ 4 Ohms / 100Hz |
＞150 |
| S/N Ratio(A-Weight) |
＞90dB |
| THD |
<0.1% |
| Miscellaneous Spec |
| Crossover S/W for 1+2 channel 12dB/Oct. |
N/A |
| Variable Hi-Pass |
N/A |
| Variable Low-Pass |
50Hz - 250Hz |
| Bass Boost, 12dB @ 45 Hz |
Yes |
| Others |
| Dimension (Lmm x Wmm x Hmm) |
12.8"x10"x21/8" |
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| IFA-series |
| IFA Series Amplifiers IFA-2400 (2-Channel) / IFA-4800 (4-Channel) |
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Features
- Class "AB" Technology MOSFET PWM Power Supply
- Bridgeable & TRI-Mode Operation
- Continuously Variable 12dB/Octave High Pass & 12dB/Octave Low Pass Crossover
- Subwoofer Variable Crossover for Deep Bass Control
- Enhanced Bass Boost +12dB @ 45Hz
- Silver Plated RCA, Power & Speaker Terminal
- Soft Start & Muting
- Overload, Thermal and Short Circuit Protection
- Power & Protection Indicator
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| Model No. |
IFA-2500 |
IFA-4800 |
| Channel |
2CH |
4CH |
| Total Max Power |
700 watts |
1000 watts |
| 4 Ohm at 14.4V 0.3%THD ( RMS ) |
60 Wx 2 |
60 Wx 4 |
| 4 Ohm at 14.4V ( MAX ) |
110w x 2 |
110w x 4 |
| 2 Ohm at 14.4V 0.3%THD ( RMS ) |
80w x 2 |
80w x 4 |
| 2 Ohm at 14.4V ( MAX ) |
150w x 2 |
1500w x 4 |
| 1 Ohm at 14.4V 0.3%THD |
150W |
150W |
| Mono Bridge ( RMS ) |
150 W x 1 |
150 W x 2 |
Variable Input Gain Control |
0.2V ~ 6.0V |
0.2V ~ 6.0V |
| Damping Factor |
＞150 |
＞150 |
| S/N Ratio(A-Weight) |
＞950dB |
＞95dB |
| THD |
<0.05% |
<0.05% |
| Crossover S/W for 1+2 channel 12dB/Oct. |
HP/FULL/LP |
HP/FULL/LP |
| Variable Hi-Pass(12dB) |
80Hz ~ 1.2kHZ |
80Hz ~ 1.2kHZ |
| Variable Low-Pass(12dB) |
50Hz-250Hz |
50Hz-250Hz |
| Fuse Rating |
20A |
40A |
| Dimensions (L mm x W mm x H mm) |
8"x9 1/4" x 2 1/2" |
11"x9 1/4" x 2 1/2" |
| MSRP |
$125 |
$182 |
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