PASMAG Amplifier Reviews.

Hi-FiDelity

Hi-FiDelity

Hi-Fi Junkie
Seeing as real product reviews in hobby are getting harder to find as more publications close down or refocus I decided I would post specs and links to the one car audio mag that is still going. I'm thinking about keeping this thread dedicated to amp reviews (mono, 2-channel, 4-channel, more) but if Al would prefer me to keep all the PASMAG info in a single thread I'm cool with that as well. I claim no authorship for any of these reviews, I'm posting them here to make a simple archive of "current" product reviews for any users of visitors of the site.


Lets start off with two new offerings from Clarion.

First The Clarion XC6410 2/3/4 channel amp:

View attachment 958

[TABLE="class: mainTableA, width: 100%"]
[TR]
[TH]Power @ 4-Ohm[/TH]
[TD] 85w × 4[/TD]
[/TR]
[TR]
[TH] Power @ 2-Ohm[/TH]
[TD] 125w × 4[/TD]
[/TR]
[TR]
[TH] Bridged Power @ 4-Ohm[/TH]
[TD] 250w × 2[/TD]
[/TR]
[TR]
[TH] Number of Channels[/TH]
[TD] 4/3/2[/TD]
[/TR]
[TR]
[TH] MOS-FET Power Supp[/TH]
[TD] ●[/TD]
[/TR]
[TR]
[TH] 2-Ohm Stable[/TH]
[TD] ●[/TD]
[/TR]
[TR]
[TH] Independent Front/Rear Bass Extender Control[/TH]
[TD] ●[/TD]
[/TR]
[TR]
[TH] Adjustable -12db/Oct.High/Low Pass Crossover, 50Hz-500Hz (×10, 500Hz – 5kHz)[/TH]
[TD] ●[/TD]
[/TR]
[TR]
[TH] Nickel Plated Connectors; RCA/ Speaker/ Power[/TH]
[TD] ●[/TD]
[/TR]
[TR]
[TH] Dimensions (W × H × D) (Inches)[/TH]
[TD] 8-3/4 (W) × 2-3/16 (H) × 6-7/8 (D)[/TD]
[/TR]
[/TABLE]




Pasmag's full review:


Manufacturers Rated Power
85 W x 4 @ 4 Ω
125 W x 4 @ 2 Ω
250 W x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N@12.6 V Battery:
68 W x 4 @ 4 Ω
113 W x 4 @ 2 Ω
241 W x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N@ 14.4 V Battery
150 W x 4 @ 4 Ω
250 W x 4 @ 2 Ω
318 W x 2 @ 4 Ω

Maximum Current at full power, lowest rated impedance 46.3 A







Second the Clarion XC1410

View attachment 959

[TABLE="class: mainTableA, width: 100%"]
[TR]
[TH]Power @ 4-Ohm[/TH]
[TD]50W × 4[/TD]
[/TR]
[TR]
[TH] Power @ 2-Ohm[/TH]
[TD]75W × 4[/TD]
[/TR]
[TR]
[TH] Number of Channels[/TH]
[TD]4[/TD]
[/TR]
[TR]
[TH] Power MOSFET Switching Transistors[/TH]
[TD]●[/TD]
[/TR]
[TR]
[TH] 2-Ohm Stable[/TH]
[TD]●[/TD]
[/TR]
[TR]
[TH] Selectable (60Hz, 90Hz, FLAT)[/TH]
[TD]●[/TD]
[/TR]
[TR]
[TH] 4-Channel RCA Input[/TH]
[TD]●[/TD]
[/TR]
[TR]
[TH] 4-Channel High Level Input[/TH]
[TD]●[/TD]
[/TR]
[TR]
[TH] 4-Channel High Level Speaker Output[/TH]
[TD]●[/TD]
[/TR]
[TR]
[TH] Dimensions (W × H × D) Inches[/TH]
[TD]7-1/8 (W) × 1-3/8 (H) × 2-3/4 (D)[/TD]
[/TR]
[/TABLE]



Pasmag's full review


Manufacturers Rated Power
50 x 4 @ 4 Ohms
75 x 4 @ 2 Ohms

Actual Measured Power @ 1.0 % THD+N@ 12.6 V Battery
36 x 4 @ 4 Ohms
60 x 4 @ 2 Ohms

Actual Measured Power @ 1.0 % THD+N@ 14. 4V Battery
51 x 4 @ 4 Ohms
83 x 4 @ 2 Ohms

Maximum Current @ full power 2 ohms per ch. 29.6 A
 
Last edited by a moderator:
Rockford Fosgate P600x4

View attachment 960

CEA-2006 Compliant:
CEA-2006_icon.gif


Number of Channels: 4

Rated Power
(RMS Continuous Power): 		75 Watts x 4 @ 4-Ohm
150 Watts x 4 @ 2-Ohm
300 Watts x 2 @ 4-Ohm Bridged

Total Power
(Sum of Rated Power): 		600 Watts RMS

Dynamic Power
(PVC/PowerCube® Measurement): 		129 Watts x 4 @ 4-Ohms 0° Res
211 Watts x 4 @ 2-Ohms 0° Res

Bridgeable: Yes

Efficiency (average): 68% @ 4-Ohm

Crossover Controls: Front High-Pass (HP): 50Hz-250Hz 12dB/octave Butterworth
Front Low-Pass (LP): 50-250Hz 12dB/octave Butterworth
Rear High-Pass (HP): 50Hz-250Hz 12dB/octave Butterworth
Rear Low-Pass (LP): 50-250Hz 12dB/octave Butterworth

Tone Controls: Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Front Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz
Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
Rear Punch EQ2 Treble: 0dB to +12.5dB @ 12kHz
Function depends upon LP/AP/HP switch position

Signal Input: Hi/Low level: 2 RCA pair

Signal Output: Low level: 1 RCA pair

Power Input Connector: Captive C-Clamp

Power Wire Gauge: 4 AWG

Speaker Output Connector: Captive C-Clamp

Speaker Wire Gauge: 8 AWG to 18 AWG


Heat Sink Type: Cast aluminum

Cooling: Convection

Remote Controls: Optional Punch Level Control (PLC2) Ready

Visual Indicators: Power/Protect/Thermal LED
Power/Protect/Thermal LED
Input Clip LED

Circuit Topology Class: Class-A/B

Frequency Response: 20Hz to 20kHz +/- 1.0dB

Shipping Weight: 12.8 Lbs.
(5.80 Kg.)

Dimensions (HxWxL): 2.38 x 7.76 x 13.28 (in)
6.05 x 19.71 x 33.73 (cm)






Pasmag's full review



Measured Performance Specifications

Manufacturers Rated Power
75 x 4 @ 4 Ohms
150 x 4 @ 2 Ohms
300 x 2 @ 4 Ohms

Actual Measured Power @ 1.0% THD+N @ 12.6 V Battery
97 x 4 @ 4 Ohms
156 x 4 @ 2 Ohms
318 x 2 @ 4 Ohms

Actual Measured Power @ 1.0% THD+N@ 14.4 V Battery
127 x 4 @ 4 Ohms
206 x 4 @ 2 Ohms
420 x 2 @ 4 Ohms

Maximum Current @ full power, lowest rated impedance: 89.1 A
 
Last edited:
I think it's cool seeing manufacturer's rated power versus actual power. I think having individual threads for each category would be the way to go.
 
An old one (2009) but well worth posting: Soundstream REF4-760

R0019723_opt.jpeg

[TABLE="class: grid, width: 500"]
[TR]
[TD]Channels
[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]RMS Power @ 4Ω, 14.4V[/TD]
[TD]4 x 115[/TD]
[/TR]
[TR]
[TD]RMS Power @ 2Ω, 14.4V[/TD]
[TD]4 x 155[/TD]
[/TR]
[TR]
[TD]RMS Power @ 4Ω Bridged, 14.4V[/TD]
[TD]2 x 380[/TD]
[/TR]
[TR]
[TD]Total Harmonic Distortion (4Ω power)[/TD]
[TD]0.02%[/TD]
[/TR]
[TR]
[TD]Frequency Response[/TD]
[TD]15-50kHz[/TD]
[/TR]
[TR]
[TD]Signal-to-Noise Ratio (4Ω power)[/TD]
[TD]102dB[/TD]
[/TR]
[TR]
[TD]Damping Factor (100Hz, 4Ω)[/TD]
[TD]>3000[/TD]
[/TR]
[TR]
[TD]Dimensions:

[/TD]
[TD]20.5"l x 2.25"h x 9.875"w
[/TD]
[/TR]
[TR]
[TD]Ch. 1&2 HPF/Hawkins/Subsonic
(12dB Slope / 0-10dB Hawkins Boost)[/TD]
[TD]15Hz-4kHz[/TD]
[/TR]
[TR]
[TD]Channels 3&4 HPF (12dB Slope)[/TD]
[TD]15Hz-4kHz[/TD]
[/TR]
[TR]
[TD]Channels 3&4 LPF (12dB Slope)[/TD]
[TD]50Hz-4kHz[/TD]
[/TR]
[TR]
[TD]External Fuse Required[/TD]
[TD]80 A[/TD]
[/TR]
[/TABLE]


Pasmag's full review

Manufacturers Rated Power
115 x 4 @ 4 Ω
155 x 4 @ 2 Ω
380 x 2 @ 4 Ω

Measured Performance Specifications:

Actual Measured Power @ 1.0% THD+N @ 12.6V
85 x 4 @ 4 Ω
122 x 4 @ 2 Ω
247 x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N @ 14.4V
113 x 4 @ 4 Ω
160 x 4 @ 2 Ω
324 x 2 @ 4 Ω

Maximum Current @ full power 2 ohms per ch: 74.9A
 
It is neat to see exactly how over/under rated some of these amps are. The RF Punch just blows the factory specs out of the water at 12 volts and even though the SS REF4.760 was a little overrated those specs are still pretty impressive and not off by too much.
 
They very well may have been, though I would like to see a second look at the 4.760 seeing as that review was before/ right at launch and may have been a pre production model.
 
Digital Designs M4A monoblock amp

M4_3qtr_top-side.jpg

[TABLE="width: 500"]
[TR]
[TH]Channels
[/TH]
[TD]1[/TD]
[/TR]
[TR]
[TH]Cont Power at 1 Ohm[/TH]
[TD]5,200W x 1ch @ 12v, 7000W x 1ch @ 14.v
[/TD]
[/TR]
[TR]
[TH]Damping Factor[/TH]
[TD]>150[/TD]
[/TR]
[TR]
[TH]Dimensions (US)[/TH]
[TD]27.63" x 9.13" x 2.5"[/TD]
[/TR]
[TR]
[TH]Dimensions (Metric)[/TH]
[TD]70.17 x 23.19 x 6.35 cm[/TD]
[/TR]
[TR]
[TH]Dynamic Power[/TH]
[TD]9500W[/TD]
[/TR]
[TR]
[TH]Efficiency Thru Output[/TH]
[TD]87%[/TD]
[/TR]
[TR]
[TH]Input Sensitivity[/TH]
[TD]0.15v - 5v[/TD]
[/TR]
[TR]
[TH]Shipping Weight[/TH]
[TD]36 lbs / 16.33 kg[/TD]
[/TR]
[TR]
[TH]Wire Gauge (Power and Ground)[/TH]
[TD]2 x 0 AWG[/TD]
[/TR]
[TR]
[TH]Wire Gauge (Speaker Output)[/TH]
[TD]10 AWG[/TD]
[/TR]
[/TABLE]



Pasmag's Full Review

MEASURED PERFORMANCE SPECIFICATIONS

Manufacturers Rated Power
Not stated x 1 @ 4 Ohms
Not stated x 1 @ 2 Ohms
3200 x 1 @ 1 Ohms

Actual Measured Power @ 1.0 % THD+N@ 12.6 V Battery
1193 x 1 @ 4 Ohms
2223 x 1 @ 2 Ohms
3809 x 1 @ 1 Ohms

Actual Measured Power @ 1.0 % THD+N@ 14.4 V Battery
1558 x 1 @ 4 Ohms
2897 x 1 @ 2 Ohms
4955 x 1 @ 1 Ohms

Maximum Current @ full power, lowest rated impedance: 422.4 A
 
I know this guy wouldn't be the choice of most people on here but I've heard conflicting things about RE since the US Amps buyout (particularly about the new USX line) and though I would post this for anyone interested. It's not terrible but it sure isn't good.

RE Audio USX4250:

1m.jpg



  • Class: AB
  • Channel: 4 CH
  • Dynamic Power: 1200 W
  • RMS Power (4Ω@14.4V): 100 W x 4
  • RMS Power (2Ω@14.4V): 150 W x 4
  • RMS Bridged Power (4Ω): 300 W x 2
  • THD: <0.05 %
  • SN Ration: 85 dB
  • Frequency Response: 20 Hz ~ 30 KHz
  • Crossover Frequency(Low Pass): 40 ~ 250 Hz
  • Crossover Frequency(High Pass): 40 ~ 1 KHz
  • Input Sensitivity: 0.2 ~ 8 V
  • Heatsink Size(WxLxH) [inches]: 9.65 x 15 x 2.05
  • Heatsink Size(WxLxH) [mm] : 245.11 x 381 x 52.07
  • Fuse Rating: 30 A x 3


Pasmag full review

Measured Performance Specifications

Manufacturers Rated Power
100 x 4 @ 4 ohms
150 x 4 @ 2 ohms
300 x 2 @ 4 ohms

Actual Measured Power @ 1.0% THD+N @ 12.6 V Battery
63 x 4 @ 4 ohms
95 x 4 @ 2 ohms
194 x 2 @ 4 ohms

Actual Measured Power @ 1.0% THD+N @ 14.4 V Battery
85 x 4 @ 4 ohms
129 x 4 @ 2 ohms
262 x 2 @ 4 ohms

Maximum Current @ full power, lowest rated impedance: 65.3 A
 
Last edited:
There must be a mistake there somewhere in the official wattage quotes from Soundstream. There's no way they quote 4*155W@2Ohm and then 2*380@4Ohm bridged. One of them must be false, probably the latter one.

Edit: ok, according to their webpage it's 4*160 and 2*380, still off. Something is rotten in the state of Denmark...
 
n_olympios said:
There must be a mistake there somewhere in the official wattage quotes from Soundstream. There's no way they quote 4*155W@2Ohm and then 2*380@4Ohm bridged. One of them must be false, probably the latter one.

Edit: ok, according to their webpage it's 4*160 and 2*380, still off. Something is rotten in the state of Denmark...
Click to expand...

In the review he stated that it was probably a misprint, which is entirely possible.
 
I'll see what I can find for more amp reviews, though sadly it looks like some of the ones I wanted to link to don't list measured power ratings. Maybe I'll start the component and sub woofer thread next.
 
Here is another piece of equipment that will most likely fly under the radar.

Sony XM-GS400 Amplifier

x158XMGS400-F-1.jpeg



Rated Output:
70W x 4 (20Hz-20kHz, 1% THD, at 4 Ohms, 14.4V)
80W x 4 (20Hz-20kHz, 1% THD, at 2 Ohms, 14.4V)
160W x 2 (20Hz-20kHz, 1% THD, at 4 Ohms, 14.4V)
Speaker Impedance : 2-8 Ohm stereo, 4-8 Ohms mono
Speaker Terminal Type : Gold plated terminals

Audio:
Band : Low Pass Filter: 50-300 HZ, -12dB/oct
High Pass Filter: 50-300 HZ, -12dB/oct
Circuit System : OTL Output Transformerless Circuit Pulse Power Supply
Frequency Response : 10-100kHz (+0/-3 dB)
Harmonic Distortion : 0.05% (1kHz)
Impedance : 2-8 Ohm stereo, 4-8 Ohms mono
Input Level : 0.3 - 6.0V (RCA input)
1.2 - 12.0V (High Level Input)
Low Boost : 0-10dB (40Hz)
Noise Level : 93 dBA
Level Control : High Level Input: 3.0 - 12V
Power Supply : OTL Output Transformerless Circuit Pulse Power Supply
Signal Circuitry : 6-70Hz Variable -12 dB/Octave Subsonic filter

Inputs and Outputs:
Audio In : RCA Pin Jacks
High Level input connector
Audio Out : Speaker Terminals
Input(s) : RCA Pin Jacks
High Level input connector
Line Level Input(s) : RCA pin jacks
Output(s) : Speaker Terminals
RCA Audio Input(s) : Pin Jacks: 0.3 - 6V

Power:
Current Drain : At rated output: 30 Amp (at 4 Ohms)
Input Voltage : 10.5-16V Power Supply Voltage
Internal Power Supply : OTL Output Transformerless Circuit
Pulse Power Supply

Weights and Measurements:
Dimensions (Approx) Depth : 8"
Dimensions (Approx) Height : 2 1/8"
Dimensions (Approx) Width : 10 3/4"
Dimensions (Approx.) : 10 3/4" x 2 1/8" x 8" (272 x 51 x 202 mm)
Weight (Approx.) : 6 lb (2.7 kg)

PASMAG Full Review

MEASURED PERFORMANCE SPECIFICATIONS

Manufacturers Rated Power
70 W x 4 @ 4Ω
80 W x 4 @ 2Ω
160 W x 2 @ 4Ω

Actual Measured Power @ 1.0% THD+N@ 12.6 V Battery
62 W x 4 @ 4Ω
89 W x 4 @ 2Ω
182 W x 2 @ 4Ω

Actual Measured Power@ 1.0% THD+N@ 14.4 V Battery
83 W x 4 @ 4Ω
118 W x 4 @ 2Ω
240 W x 2 @ 4Ω

Maximum Current at full power, lowest rated impedance 62.2 A
 
Last edited:
Lets look at some high end power.

Helix A4 Competition by BRAX


View attachment 965

[TABLE="class: grid, width: 500"]
[TR]
[TD]Channels
[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]Class
[/TD]
[TD]A[/TD]
[/TR]
[TR]
[TD]Rated Power (RMS continuous power)[/TD]
[TD]85 Watts x 4 @ 4-Ohms
150 Watts x 4 @ 2-Ohms
270 Watts x 2 @ 4-Ohms Bridged
395 Watts x 2 @ 2-Ohms Bridged[/TD]
[/TR]
[TR]
[TD]Dynamic Power
(PVC/PowerCube® Measurement)[/TD]
[TD]150 Watts x 4 @ 4-Ohms
250 Watts x 4 @ 2-Ohms
450 Watts x 2 @ 4-Ohms Bridged
650 Watts x 2 @ 2-Ohms Bridged[/TD]
[/TR]
[TR]
[TD]Bridgeabel[/TD]
[TD]Yes[/TD]
[/TR]
[TR]
[TD]Crossover Controls[/TD]
[TD]Front Channels
Position 1: 15Hz - 90Hz Low Pass or High Pass
Position 2: 90Hz - 800Hz Low Pass or High Pass
Position 3: 600Hz - 7kHz Low Pass or High Pass

Rear Channels
Position 1: 15Hz - 90Hz Low Pass or High Pass
Position 2: 90Hz - 800Hz Low Pass or High Pass
Position 3: 600Hz - 7kHz Low Pass or High Pass[/TD]
[/TR]
[TR]
[TD]Tone Controls[/TD]
[TD]Bass Boost: 0dB to 9dB
Boost Center Frequencies: 30Hz to 120Hz[/TD]
[/TR]
[TR]
[TD]Frequency Response[/TD]
[TD]20Hz - 20kHz +/-3dB[/TD]
[/TR]
[TR]
[TD]Circuit Topology Class[/TD]
[TD]Class A[/TD]
[/TR]
[TR]
[TD]Dimensions:

[/TD]
[TD]1.38" x 17" x 9.45" (35mm x 240mm x 432mm)
[/TD]
[/TR]
[/TABLE]


PASMAG Full Review

Measured Performance Specifications:

Manufacturers Rated Power
85 x 4 @ 4 Ω
150 x 4 @ 2 Ω
330 x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N@ 12.6V Battery
82 x 4 @ 4 Ω
126 x 4 @ 2 Ω
256 x 2 @ 4 Ω



Actual Measured Power @ 1.0% THD+N@ 14.4V Battery
91 x 4 @ 4 Ω
165 x 4 @ 2 Ω
333 x 2 @ 4 Ω


Maximum Current @ full power, lowest rated impedance >90A
 
Last edited:
Now back to the world of more affordable Hi-Fi car amps.

JL Audio XD500/3

View attachment 966


[TABLE="class: grid, width: 500"]
[TR]
[TD]Channels
[/TD]
[TD]3[/TD]
[/TR]
[TR]
[TD]Class
[/TD]
[TD]D[/TD]
[/TR]
[TR]
[TD]Rated Continuous (RMS) Power @ 14.4 V[/TD]
[TD]Main Channels @ 4 Ω 75 W RMS x 2
Main Channels @ 2 Ω 100 W RMS x 2
Main Channels - Bridged @ 4Ω 200 W RMS x 1
Subwoofer Channel @ 4 Ω 180 W RMS x 1
Subwoofer Channel @ 3 Ω 240 W RMS x 1
Subwoofer Channel @ 2 Ω 300 W RMS x 1
Subwoofer Channel @ 1.5 Ω N/A
[/TD]
[/TR]
[TR]
[TD]Rated Continuous (RMS) Power @ 12.5 V[/TD]
[TD]Main Channels @ 4 Ω 60 W RMS x 2
Main Channels @ 2 Ω 90 W RMS x 2
Main Channels - Bridged @ 4Ω 180 W RMS x 1
Subwoofer Channel @ 4 Ω 180 W RMS x 1
Subwoofer Channel @ 3 Ω 240 W RMS x 1
Subwoofer Channel @ 2 Ω 300 W RMS x 1
Subwoofer Channel @ 1.5 Ω N/A[/TD]
[/TR]
[TR]
[TD]Frequency Response (Main Channels)[/TD]
[TD]12 Hz - 22 kHz (+0, -1dB)[/TD]
[/TR]
[TR]
[TD]Frequency Response (Subwoofer Channel)[/TD]
[TD]10 Hz - 1 kHz (+0, -1dB)[/TD]
[/TR]
[TR]
[TD]S/N Ratio, referred to highest rated power (Main Channels)[/TD]
[TD]>104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)[/TD]
[/TR]
[TR]
[TD]S/N Ratio, referred to 1 W[/TD]
[TD]>84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)[/TD]
[/TR]
[TR]
[TD]Damping Factor @ 4 Ω[/TD]
[TD]>120 / 50 Hz[/TD]
[/TR]
[TR]
[TD]amping Factor @ 2 Ω[/TD]
[TD]>60 / 50 Hz[/TD]
[/TR]
[TR]
[TD]THD+N @ Rated Power (Main Channels)[/TD]
[TD]<1% @ 2 Ω per Ch.[/TD]
[/TR]
[TR]
[TD]THD+N @ Rated Power (Subwoofer Channels)[/TD]
[TD]<1% @ 2 Ω per Ch.[/TD]
[/TR]
[TR]
[TD]Dimensions:[/TD]
[TD](H)2.05 in / 52 mm
(W)8.52 in / 216 mm
(D)7.09 in / 180 mm[/TD]
[/TR]
[/TABLE]

PASMAG Full Review


MEASURED PERFORMANCE SPECIFICATIONS

Manufacturers Rated Power
75 W x 2 + 180 W x 1 @ 4 Ω
100 W x 2 + 300 W x 1 @ 2 Ω

Actual Measured Power @ 1.0% THD+N@ 12.6V Battery
75 W x 2 + 206 W x 1 @ 4 Ω
106 W x 2 + 375 W x 1 @ 2 Ω


Actual Measured Power @ 1.0% THD+N@ 14.4V Battery
84 W x 2 + 204 W x 1 @ 4 Ω
106 W x 2 + 375 W x 1 @ 2 Ω
140 W x 2 + 393 W x 1 @ 2 Ω

Maximum Current at full power, lowest rated impedance: 60.2 A
 
Last edited:
An amp I've heard quite a bit about both good and bad. The measured THD ratting scares me a little, that's a lot of noise to be injecting into your speakers.

Polk Audio PA660 Amplifier

View attachment 967

[TABLE="class: grid, width: 510"]
[TR]
[TD]Channels
[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]Class
[/TD]
[TD]AB[/TD]
[/TR]
[TR]
[TD]RMS Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz)[/TD]
[TD]4 ohms 75 watts
2 ohms 85 watts
[/TD]
[/TR]
[TR]
[TD]RMS Power at 14.4V
(Watts per channel bridged)[/TD]
[TD]4 ohms 200 watts[/TD]
[/TR]
[TR]
[TD]Dynamic Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz)[/TD]
[TD]12 Hz - 22 kHz (+0, -1dB)[/TD]
[/TR]
[TR]
[TD]Dynamic Power at 14.4V
(Watts per channel NOT bridged)[/TD]
[TD]4 ohms 150 watts
2 ohms 170 watts[/TD]
[/TR]
[TR]
[TD]Dynamic Power at 14.4V
(Watts per channel bridged)[/TD]
[TD]4 ohms 300 watts[/TD]
[/TR]
[TR]
[TD]Distortion at Rated Power[/TD]
[TD]0.9% THD[/TD]
[/TR]
[TR]
[TD]Signal-to-noise (Referenced to rated power)[/TD]
[TD]75 dBA[/TD]
[/TR]
[TR]
[TD]Frequency Response[/TD]
[TD]10Hz-30kHz [/TD]
[/TR]
[TR]
[TD]Minimum Impedance Bridged[/TD]
[TD]4 ohms[/TD]
[/TR]
[TR]
[TD]Minimum Impedance Not Bridge[/TD]
[TD]2 ohms[/TD]
[/TR]
[TR]
[TD]Dimensions:[/TD]
[TD]Height: 2" (5.08cm)
Width: 13 1/4" (33.66cm)
Depth: 8 1/8" (20.64cm) [/TD]
[/TR]
[/TABLE]

PASMAG Full Review

Measured Performance Specifications:

Manufacturers Rated Power
75 x 4 @ 4 ?
85 x 4 @ 2 ?
150 x 2 @ 4 ?

Actual Measured Power @ 1.0% THD+N @ 12.6V Battery
52 x 4 @ 4 ?
70 x 4 @ 2 ?
141 x 2 @ 4 ?

Actual Measured Power @ 1.0% THD+N @ 14.4V Battery
70 x 4 @ 4 ?
93 x 4 @ 2 ?
187 x 2 @ 4 ?

Maximum Current @ full power, lowest rated impedance: 51.5A
 
Last edited:
Another Polk Amp and this one fairs quite a bit better under testing IMO, still not great but better.

Polk Audio PA D4000

View attachment 968

[TABLE="class: grid, width: 510"]
[TR]
[TD]Channels
[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]Class
[/TD]
[TD]D[/TD]
[/TR]
[TR]
[TD]RMS Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz)[/TD]
[TD]4 ohms 125 watts
2 ohms 200 watts
[/TD]
[/TR]
[TR]
[TD]RMS Power at 14.4V
(Watts per channel bridged)[/TD]
[TD]4 ohms 400 watts[/TD]
[/TR]
[TR]
[TD]Dynamic Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz)[/TD]
[TD]12 Hz - 22 kHz (+0, -1dB)[/TD]
[/TR]
[TD]Distortion at Rated Power[/TD]
[TD]<0.1 %[/TD]
[/TR]
[TR]
[TD]Signal-to-noise (Referenced to rated power)[/TD]
[TD]105 dBA[/TD]
[/TR]
[TR]
[TD]Frequency Response[/TD]
[TD]20Hz-20kHz[/TD]
[/TR]
[TR]
[TD]Minimum Impedance Bridged[/TD]
[TD]4 ohms[/TD]
[/TR]
[TR]
[TD]Minimum Impedance Not Bridge[/TD]
[TD]2 ohms[/TD]
[/TR]
[TR]
[TD]Cabinet Dimensions:[/TD]
[TD]Height: 1 13/16" (4.60cm)
Width: 10 15/16" (27.78cm)
Depth: 6 3/4" (17.14cm)[/TD]
[/TR]
[/TABLE]

PASMAG Full Review

Measured Performance Specifications:

Manufacturers Rated Power
125 x 4 @ 4 Ω
200 x 4 @ 2 Ω
400 x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N @ 12.6V Battery
105 x 4 @ 4 Ω
169 x 4 @ 2 Ω
346 x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N @ 14.4V Battery
140 x 4 @ 4 Ω
221 x 4 @ 2 Ω
448 x 2 @ 4 Ω

Maximum Current @ full power, lowest rated impedance: 86.1A
 
Here we have the Polk PA D4000's cousin the PPI Phantom 900.4. Though being cut from the same "cloth" as it were doesn't mean they are identical.

View attachment 972


[TABLE="class: grid, width: 510"]
[TR]
[TD]Channels[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]Class[/TD]
[TD]D[/TD]
[/TR]
[TR]
[TD]RMS Power at 4 ohms[/TD]
[TD]145 x 4[/TD]
[/TR]
[TR]
[TD]RMS Power at 2 ohms[/TD]
[TD]225 x 4[/TD]
[/TR]
[TR]
[TD]RMS Power 4ω Bridged[/TD]
[TD]450 x 2[/TD]
[/TR]
[TR]
[TD]Cabinet Dimensions:[/TD]
[TD] (W) 6.5" x (H) 2" x (D) 9.25"[/TD]
[/TR]
[/TABLE]

PASMAG Full Review

Measured Performance Specifications

Manufacturers Rated Power
145 x 4 @ 4 Ω
225 x 4 @ 2 Ω
450 x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N @ 12.6V Battery
113 x 4 @ 4 Ω
179 x 4 @ 2 Ω
363 x 2 @ 4 Ω

Actual Measured Power @ 1.0% THD+N @ 14.4V Battery
150 x 4 @ 4 Ω
235 x 4 @ 2 Ω
477 x 2 @ 4 Ω

Maximum Current @ full power, lowest rated impedance: 86.1A
 
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