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Superb headphone amplifier
Enjoy fully balanced performance with this outstanding headphone amplifier.
Local pickup or $11 flat rate shipping within Australia
The MX HPA fully balanced headphone amp is the result of decades of experience of making high quality headphone amplifiers. Relatively, the MX HPA has about the same performance into headphones as the incredible Titan has into loudspeakers. That is; awe inspiring, incredible, limitless and any other hyperbole you can imagine. It is really incredible.
Design and build specifications
The MX HPA’s technical performance is stunning. Typically distortion from 20 Hz to 40 kHz is less than 0.005%. This is serious stuff. Signal noise ratio is better than 120dB (‘A’ weighted). Needless to say frequency response is ruler flat from 10 Hz to 20 kHz (-0.1dB).
It is capable of a short term peak of 10 watts (for one cycle). It has 2 gain positions; 18dB (8X) and 24dB (15X). Inputs are either balanced or single ended. It will automatically convert single ended inputs to balanced. The MX HPA is genuinely fully balanced from beginning to end.
Why do you need one?
Anyone who listens seriously on headphones at home must eventually discover the limitations of a computer or smartphone headphone output, or, if they are still using one, an old-style hi-fi integrated with headphone amp built in. Most headphone amps are likely going to be a significant compromise, given the size/space and power limitations they have to work with. A stand alone headphone amp has much more space to dedicate to better circuitry, and a more robust power supply, allowing both overall better controlled sound and, importantly for some headphones, the ability to provide considerably more output power to the headphone.
The key is that amps need to deliver enough power for the headphone not to sound distorted at the musical peak—not the average volume. The purpose of a headphone amp is not to blast your ears into deafness! It’s to have the sound you hear be cleaner and more controlled, especially during peaks. But you should always practice safe listening, and keep the volume at a very comfortable level.
This new wave of balanced headphone amps provide a more refined and engaging sound performance experience to make the most of the controled enviroment that is headphones.
MX-HPA – Specifications
Power 1.8 Watts per channel into 8 Ohms (27dBW)
Maximum output voltage 19 Volts RMS, 20Hz to 20 kHz
Onset of clipping (54 Volts peak-to-peak) balanced
THD+N >0.005% typical, 20Hz to 20 kHz
Signal / noise ratio >120dB ‘A’-weighted
Input impedance 50k Ohms
Frequency response +0, –0.1dB, 10Hz to 20 kHz
Gain, LO position (volume max) 18db (8x)
Gain, HI position (volume max) 24dB (15x)
Line level inputs
1 pair line level XLR (balanced) connectors
1 pairs line level RCA connectors
1 pair 3-pin XLR/¼” stereo Jack combined sockets
Mains voltages 90-250VAC 50-60Hz universal worldwide supply
Consumption >0.25 Watts standby (Orange LED lit)
15 Watts maximum (Blue LED lit, full power output)
Unit only, unboxed 2.2 kg (5 lbs) In shipping carton 3.7 kg (8¼ lbs)
Width 220 mm x Height 53 mm x Depth (front to back) inc. terminals 240 mm
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At Len Wallis Audio, whether you’re purchasing in store, over the phone or online through our ecommerce store, we want you to be completely satisfied with your purchase.
Our Refund, Return and Repairs Policy is here to clarify any concerns or questions you might have prior to you making a purchase from us. This way you can be sure of our policy on refunds, returns and repairs and your rights under the Australian Consumer Law.
We also recommend you immediately inspect any goods that you receive from us to ensure you are completely satisfied with the goods, including that the goods are of acceptable quality, and match the description we have provided to you.
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- Any item not in its original condition, is damaged or missing parts for reasons not due to our error
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Consumer Guarantees and Your Rights under the Australian Consumer Law
Refer to our page for more information.
Goods Damaged in Transit.
If any goods arrive damaged, please contact us as soon as possible. Len Wallis Audio will arrange to have the damaged goods returned and either arrange for a replacement of the goods or refund the price to you. Damaged goods must be returned in the condition received by you with all original packaging, accessories and/or manuals.
Refunds will be normally be processed within five (5) days.
Where Len Wallis Audio considers the goods to have breached a consumer guarantee, any shipping costs to return the goods to Len Wallis Audio will be at our cost.
Returns and Repairs.
You may visit Len Wallis Audio and a staff member will assist you with any return or repair. This may include inspecting the goods, arranging for the goods to be repaired, or providing you with a replacement.
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If any goods cannot be easily returned to us due to their size, the fault or because they have been affixed or installed in your premises, please contact us and we will arrange an inspection to assess the goods.
Goods returned for repair will be assessed and/or repaired within a reasonable time. You may be provided with an indicative repair time, which time may vary due to reasons beyond ours or the repairer’s reasonable control, such as part availability and incorrect fault description.
You may be required to pay labour, assessment and/or freight fees, such as where goods are assessed to have been damaged by misuse or accident, or where your rights under the Australian Consumer Law or any manufacturer’s warranty do not apply. We may provide you with an indicative fee, which may vary due to reasons beyond our control.
If any goods that you return are capable of retaining user generated data such as files stored on a hard drive, and songs stored on a portable media player, the replacement or repair of the goods may result in loss of the data. In these circumstances, we recommend you back up data to prevent data loss, and remove sensitive or confidential data, as a party assessing and/or repairing your goods may be required to view data in the course of carrying out the assessment. We will not be responsible for any data loss.
In some circumstances, goods presented for repair may be replaced by refurbished goods of the same type rather than being repaired. Refurbished parts may be used to repair the goods.
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We understand that sometimes you may simply change your mind about a purchase or have made a wrong selection. In these situations, you have 14 days in which to return your item for a refund, exchange or store credit. If more than 14 days has passed since your purchase we can’t offer you a refund, exchange or store credit.
To be eligible for a return, refund or store credit your item must be in the same condition that you received it. Which is to say, it must be in the original unopened packaging, and in ‘brand new’ saleable condition.
Please note that current Australian Consumer Law does not require us to offer a ‘Change of Mind’ refund. Rather Len Wallis Audio offers 14 day ‘Change of Mind Policy’ in good faith. For more information on consumer rights and guarantees, please visit the Australian Competition and Consumer Commission web site.