Re: PASMAG Amplifier Reviews.
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...
Re: PASMAG Amplifier Reviews.
Quote:
Originally Posted by
n_olympios
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...
In the review he stated that it was probably a misprint, which is entirely possible.
Re: PASMAG Amplifier Reviews.
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.
Re: PASMAG Amplifier Reviews.
Here is another piece of equipment that will most likely fly under the radar.
Sony XM-GS400 Amplifier
http://www.crutchfield.com.edgesuite...GS400-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
1 Attachment(s)
Re: PASMAG Amplifier Reviews.
Lets look at some high end power.
Helix A4 Competition by BRAX
Attachment 965
Channels |
4 |
Class |
A |
Rated Power (RMS continuous power) |
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 |
Dynamic Power
(PVC/PowerCubeŽ Measurement) |
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 |
Bridgeabel |
Yes |
Crossover Controls |
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 |
Tone Controls |
Bass Boost: 0dB to 9dB
Boost Center Frequencies: 30Hz to 120Hz |
Frequency Response |
20Hz - 20kHz +/-3dB |
Circuit Topology Class |
Class A |
Dimensions:
|
1.38" x 17" x 9.45" (35mm x 240mm x 432mm) |
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
1 Attachment(s)
Re: PASMAG Amplifier Reviews.
Now back to the world of more affordable Hi-Fi car amps.
JL Audio XD500/3
Attachment 966
Channels |
3 |
Class |
D |
Rated Continuous (RMS) Power @ 14.4 V |
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 |
Rated Continuous (RMS) Power @ 12.5 V |
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 |
Frequency Response (Main Channels) |
12 Hz - 22 kHz (+0, -1dB) |
Frequency Response (Subwoofer Channel) |
10 Hz - 1 kHz (+0, -1dB) |
S/N Ratio, referred to highest rated power (Main Channels) |
>104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
S/N Ratio, referred to 1 W |
>84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
Damping Factor @ 4 Ω |
>120 / 50 Hz |
amping Factor @ 2 Ω |
>60 / 50 Hz |
THD+N @ Rated Power (Main Channels) |
<1% @ 2 Ω per Ch. |
THD+N @ Rated Power (Subwoofer Channels) |
<1% @ 2 Ω per Ch. |
Dimensions: |
(H)2.05 in / 52 mm
(W)8.52 in / 216 mm
(D)7.09 in / 180 mm |
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
1 Attachment(s)
Re: PASMAG Amplifier Reviews.
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
Attachment 967
Channels |
4 |
Class |
AB |
RMS Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz) |
4 ohms 75 watts
2 ohms 85 watts |
RMS Power at 14.4V
(Watts per channel bridged) |
4 ohms 200 watts |
Dynamic Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz) |
12 Hz - 22 kHz (+0, -1dB) |
Dynamic Power at 14.4V
(Watts per channel NOT bridged) |
4 ohms 150 watts
2 ohms 170 watts |
Dynamic Power at 14.4V
(Watts per channel bridged) |
4 ohms 300 watts |
Distortion at Rated Power |
0.9% THD |
Signal-to-noise (Referenced to rated power) |
75 dBA |
Frequency Response |
10Hz-30kHz |
Minimum Impedance Bridged |
4 ohms |
Minimum Impedance Not Bridge |
2 ohms |
Dimensions: |
Height: 2" (5.08cm)
Width: 13 1/4" (33.66cm)
Depth: 8 1/8" (20.64cm) |
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
1 Attachment(s)
Re: PASMAG Amplifier Reviews.
Another Polk Amp and this one fairs quite a bit better under testing IMO, still not great but better.
Polk Audio PA D4000
Attachment 968
Channels |
4 |
Class |
D |
RMS Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz) |
4 ohms 125 watts
2 ohms 200 watts |
RMS Power at 14.4V
(Watts per channel bridged) |
4 ohms 400 watts |
Dynamic Power at 14.4V
(Watts per channel NOT bridged @ 1 kHz) |
12 Hz - 22 kHz (+0, -1dB) |
Signal-to-noise (Referenced to rated power) |
105 dBA |
Frequency Response |
20Hz-20kHz |
Minimum Impedance Bridged |
4 ohms |
Minimum Impedance Not Bridge |
2 ohms |
Cabinet Dimensions: |
Height: 1 13/16" (4.60cm)
Width: 10 15/16" (27.78cm)
Depth: 6 3/4" (17.14cm) |
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
Re: PASMAG Amplifier Reviews.
I believe that's the same amp as the PPI Phantom 900.4 too.
1 Attachment(s)
Re: PASMAG Amplifier Reviews.
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.
Attachment 972
Channels |
4 |
Class |
D |
RMS Power at 4 ohms |
145 x 4 |
RMS Power at 2 ohms |
225 x 4 |
RMS Power 4ω Bridged |
450 x 2 |
Cabinet Dimensions: |
(W) 6.5" x (H) 2" x (D) 9.25" |
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