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Thread: PASMAG Amplifier Reviews.

  1. Back To Top    #11

    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...
    Nick

  2. Back To Top    #12
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    Re: PASMAG Amplifier Reviews.

    Quote Originally Posted by n_olympios View Post
    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.

  3. Back To Top    #13
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    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.

  4. Back To Top    #14
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    Re: PASMAG Amplifier Reviews.

    Here is another piece of equipment that will most likely fly under the radar.

    Sony XM-GS400 Amplifier




    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 by Hi-FiDelity; 08-05-2013 at 12:11 PM.

  5. Back To Top    #15
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    Re: PASMAG Amplifier Reviews.

    Lets look at some high end power.

    Helix A4 Competition by BRAX


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    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
    Last edited by Hi-FiDelity; 08-06-2013 at 04:22 PM.

  6. Back To Top    #16
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    Re: PASMAG Amplifier Reviews.

    Now back to the world of more affordable Hi-Fi car amps.

    JL Audio XD500/3

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    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
    Last edited by Hi-FiDelity; 08-06-2013 at 04:22 PM. Reason: though it might be helpful to add the class category.

  7. Back To Top    #17
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    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

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    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
    Last edited by Hi-FiDelity; 08-06-2013 at 04:21 PM.

  8. Back To Top    #18
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    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

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    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

  9. Back To Top    #19

    Re: PASMAG Amplifier Reviews.

    I believe that's the same amp as the PPI Phantom 900.4 too.

  10. Back To Top    #20
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    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.

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    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
    Last edited by Hi-FiDelity; 08-06-2013 at 11:06 PM.

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