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  1. Hi, I'm very new to audio. My current experience is related to headphones. I recently got some HD6xx (HD650) and a JDS Labs Atom and I love it. My only problem is that now my other audio equipment sounds awful in comparison. I have borrowed some speakers from my Dad who no longer uses them. As the title suggests they are Canton Karat 300's. The specs that I found online are as follows- Manufacturer: Canton Model: Karat 300 Production Years: 1986 - 1987 Produced in: Deutschland Color: Black, White, Walnut Measurements: 310 x 500 x 290 mm (WxHxD) Weight: 13,8 kg Technical Data Form: 3-Way closed, Compact loudspreaker (aka Bookshelf speaker) Chassis: Woofer: 260 mm Cone Midrange: 38 mm Dome Tweeter: 20 mm Dome Loading: 90/130 W (RMS/Peak) Sensitivity: 91,2 dB Frequency Response: 25 - 30.000 Hz Crossover points: 850 / 4.200 Hz Impedence: 8 Ohm I have been trying to figure out what kind of amp I should use to power them. They won't be in a massive room but I don't want to underpower them and cause damage (I've read that under powering can cause damage, please correct me if I'm mistaken). Can anyone suggest an amp that would do these speakers justice without driving price up very high. I'd prefer to be spending $400 or less if possible (I've got a feeling that this might not be possible). I can't figure out what kind of power I need and whether I should be looking at using my atom as a preamp. Essentially I'm confused and the more reading I do the more confused I'm becoming about what is needed. Haha! Any advice would be most appreciated. Thanks for your time!
  2. Item: Denon PMA-1500RII Location: Coffs Harbour NSW Price: $600 plus postage Item Condition: Good condition 7/10 Reason for selling: too many amps Payment Method: Pickup - Cash, Paypal (buyer pay fee), Bank deposit. Extra Info: Power output: 70 watts per channel into 8Ω (stereo) Frequency response: 5Hz to 100kHz Total harmonic distortion: 0.01% Input sensitivity: 0.2mV (MC), 2.5mV (MM), 150mV (line) Signal to noise ratio: 76dB (MC), 91dB (MM), 110dB (line) Output: 150mV (line) Dimensions: 434 x 134 x 407mm Weight: 14.6kg Photos:
  3. Item: Emotiva UPA-1 Location: Wellington NZ Price: 1000 + Shipping Item Condition: Immaculate Reason for selling: Save space and they're overkill for my needs Payment Method: Cash on pickup, Bank deposit Extra Info: Comes with original double-boxing and manuals Smoke free home Specification per unit (selling 2x units): Number of Channels: 1 Topology: Fully Discrete, Dual Differential, High Current, Short Signal Path Class A/B Power output (all channels driven): 350 watts RMS @ 4 ohm (0.1% THD) 200 watts RMS @ 8 ohm (0.1% THD) Power Band Response: 20 Hz to 20 kHz with less than .05db deviation at rated power Broadband Frequency Response: (‐3db): 5Hz to 150kHz Amplifier Gain: 32db Signal to Noise Ratio 1 watt: >89db Full Power: >117db Input Impedance: Unbalanced – 23.5kohms Balanced – 33kohms Transformer Size: 300VA Secondary capacitance: 80,000uF Output Devices: 6 Size(mm): 431 W x 98.5 H x 457 D Weight(kg): 11.8 (15 boxed) Pictures:
  4. Item: VINTAGE LUXMAN C-02 PREAMPLIFIER & LUXMAN M-02 AMPLIFIER Location: MELBOURNE Price: $2200 Item Condition: Excellent 9/10 Reason for selling: Additions to collection Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: 2nd OWNER, Serviced and Tunned Australian 240 Volt conversation. Vintage HIFI Pictures:
  5. Item: Rega Elex-R Location: Sydney Price: $1450 + postage Item Condition: Mind, this was bought brand new in June 2017 from a seller authorised seller. Reason for selling: I could not resist a cool looking tube amplifier. Payment Method: Pickup - Cash, Bank Transfer, COD Only Extra Info: - Comes in original packing - Remote control is in very good shape - Protective seal is still attached to the front of the amp Pictures: Photos to follow.
  6. I have no sound coming out of any channels at the moment. At first there was only surround sound no voice coming out of the speakers. Center Sub and front left were not working at all. I swapped speakers over to test the channels. Speakers were fine. I took off the hood and gave it a blow out. Made sure all connections ribbon cables and power cables were properly attached. Check capacitors for damage. Bursting or leaking, they looked good. Powered it on and off many times to flush out the capacitors. Connected and reconnected the power cables to the main board. I'm getting power to all the circuit boards. Did notice a channel coil was slightly touching another coil so i nudged it back upright away from the other coil so it was not touching. After i had done this none of the speaker channels worked. I've included some photos. What would cause the channels to stop outputting sound? I've checked the various inputs dvd and audio in. Also checked system menu anf dvd for speaker settings. I also have a marantz amp where the sound is not coming out of the right channel
  7. I am looking to replace some class A amps, not because I don’t like them but for practical considerations. But, having been spoilt by them, am struggling with where to go next. The issue – we have one living space that is used for listening to music, watching TV/movies but also provides background/ambient music during the evening. It is the later that causes the issue. Being class A (well first 50 watts) they produce a bit of heat, and while they don’t get overly warm to the touch they do heat up the room over time. As summer approaches again (in Perth) we have found that we are turning the stereo off, and only using it for more critical listening, and this somewhat defeats the purpose – particularly as off means no music! So I am seeking some thoughts on alternatives, I am looking (hoping) for that liquidness in the highs one gets with class A, but without so much heat. Have tried a class A/B amp but it is not quite as good – although I would probably be happy with it I had not owned the others . Are there class A/B amps that people would recommend in this regard and what about class D - or is that a step to far?
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