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  • QSP-20 - 4 Channel Mic Preamp - www.AtlasProAudio.com

Buzz Audio QSP-20

$2,290.00
SKU:
QSP20
Availability:
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Product Description

 

QSP-20 
quad studio preamplifier

design features

Four channels of gutsy high end microphone and instrument amplification at a very attractive price point.

audio path quality

The QSP-20 audio path uses our low noise BE41 class A discrete amplifier design in a balanced configuration at the input feeding a Lundahl audio c-core transformer at the output. Instead of the traditional input transformer we use hi-spec Wima coupling capacitors. The topology is quite different to most other mic preamps in that it is balanced from input to output. The DI inputs feature our BE43 "bootstrapped FET" input interface for a very full sound from your pick ups.

microphone friendly

If you use dynamic and/or ribbon microphones you know they sometimes need a lot of gain, which many low cost preamps and audio interfaces cannot provide. The QSP-20 provides up to 70dB of effortless gain for all situations and the transformer-less input matches all microphone types nicely. Think of the QSP as merely an extension of your microphone - everything sounds real.

specs that matter

Having lots of gain is one thing, but importantly the preamp must also be quiet and the QSP does not disappoint here thanks to our perfected design. The very wide frequency response (even at high gain) ensures transients and high frequency content are preserved which make the QSP an excellent choice for percussion and acoustic insturments. But it never sounds "brittle", the output transformer add that nice touch of warmth to complete the sonic picture. The high output headroom of +29dBu means it is unlikely you will clip the QSP-20 before your audio interface does.


controls and functions

GAIN - 41 detented pot that sets gain between +22 to 70dB.
0dB/-20dB - this switch introduces a 20dB pad right at the mic input for high level signals.
0/MUTE/180 - this switch changes the polarity (phase) of the output and in the center postion, it mutes the output.
HI Z/LO Z - selects the input impedance as seen by the microphone which can change the overall tone.
48V - locking toggle switch turns the phantom power on and off.
PK - this red led will light up when the QSP output level reaches +22dBu.
There is also a handy power ON/OFF switch.


user comments

NY Andres

The Buzz SOC-20 is transparent as hell in that it always sounds natural and the QSP-20 holds the same idea. Its really transparent, and through it the same thing happens to the sound...its real. Everything just sounds so alive and full of air. It is seriously awesome. I have yet to try its DI, but I am hoping I get to sell my JDI and simplify my setup further. But this pre is awesome vs my 1073 based Vintech pre in that it complements it with a completely different flavor. These are probably never going to leave my rack. I love them.
[September 2014]

Warranty Information

standard product warranty

Buzz Audio guarantees the Product to be free of defective materials and/or workmanship for a period of 1 year (12 months) from the date of sale, and will replace defective parts and repair malfunctioning Products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory (or duly authorised service centre) via prepaid transportation with a copy of the proof of purchase, ie, sales receipt. This warranty provides that examination of the returned Product must indicate, in our judgement, a manufacturing defect. This warranty does not extend to any Product that has been subjected to misuse, neglect, accident, improper installation, or where the date code has been removed or defaced. The standard warranty is not transferable to a new owner should the Product change hands during the 1 year period.

product warranty extension

The Standard Product Warranty may be extended to a period of 2 years (24 months) from date of sale provided the Product is registered with us within 4 weeks (28 days) from the purchase date. The extended warranty is transferable to a new owner should the product change hands within the 2 year period.

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