Apos Audio TOPPING Preamplifier TOPPING PRE90 + EXT90 Preamp and Input Extender

TOPPING

TOPPING PRE90 + EXT90 Preamp and Input Extender

Name: TOPPING PRE90 + EXT90 Preamp and Input Extender
Brand: TOPPING
Price: 249.00 USD
Availability: InStock

$848

Note: This product is currently backordered and is expected to ship by April 13th.

A preamp and input extender for the TOPPING 90 stack

The Pre90 and Ext90 are a preamplifier and input extender that take the D90/SE stack to a whole new level. Together, they allow you to connect up to six additional sources, output to additional amps (such as a tube amp), and more--essentially transforming the 90 stack into the Grand Central Station of audiophile setups.

Fully balanced preamp with +16dB gain

The Pre90 is a fully-balanced amplifier that uses the same NFCA (nested feedback composite amplifier) scheme as the A90, delivering a dynamic range of 145dB and no audible noise. With +16dB of maximum gain, it can amplify the weakest of signals into the receiving amplifier.

Run two amps from the Pre90

The Pre90 can be configured to run to XLR only, RCA only, or XLR+RCA. This final option allows you to run the Pre90 to two different amps, such as an A90 and a DarkVoice 336SE, without having to plug and unplug cables every time you want to jump from one amp to the other.

Volume safeguards protect equipment and hearing

The Pre90 features a volume safeguard designed to protect your equipment and ears. If you end a listening session with the volume set high, the Pre90 will automatically reduce the volume to a safe level the next time you listen, thus preventing your speakers (and ears) from blowing out.

Fully-functional remote

The Pre90 comes with a fully-functional remote that allows you to control every aspect of the Pre90 from volume to gain to user settings. You can even use it to save the current program, locking in the volume for a specific input/output configuration. This is useful if you’re running multiple sources and amplifiers--which each need their own volume setting--to and from the Pre90.

Ext90 extender adds 6 input ports

The Ext90 adds six input ports to the TOPPING 90 stack: 2 RCA and 4 XLR. This significantly expands the input options of the stack, essentially allowing you to plug in every source you have. For audiophiles looking for an all-in-one solution, this is it.

Product highlights

Fully balanced pre-amp with +16 maximum gain
Run two amps from the pre-amp
Safe volume function protect equipment and hearing
Fully functional remote control
Add up to 6 input ports to your 90 stack
THD+N: <0.00007% @1kHz A-wt
THD: <0.0003%@20-20kHz 90kBW
SINAD: 124dB @1Khz A-wt
SNR

SE IN/SE OUT: 141dB @1kHz A-wt
BAL IN/SE OUT: 137dB @1kHz A-wt
SE IN/BAL OUT: 145dB @1kHz A-wt
BAL IN/BAL OUT: 138dB @1kHz A-wt

Dynamic range

SE IN/SE OUT: 141dB @1kHz A-wt
BAL IN/SE OUT: 137dB @1kHz A-wt
SE IN/BAL OUT: 145dB @1kHz A-wt
BAL IN/BAL OUT: 138dB @1kHz A-wt

Frequency response: 20 - 100,000Hz (+/-0.1dB)
Output level

SE IN/SE OUT: 25Vpp
BAL IN/SE OUT: 25Vpp
SE IN/BAL OUT: 50Vpp
BAL IN/BAL OUT: 50Vpp

AP measured noise level @A-wt

SE IN/SE OUT: <0.7uVrms
BAL IN/SE OUT: <0.7uVrms
SE IN/BAL OUT: <0.9uVrms
BAL IN/BAL OUT: <0.9uVrms

Actual noise level @A-wt

SE IN/SE OUT: <0.3uVrms
BAL IN/SE OUT: <0.3uVrms
SE IN/BAL OUT: <0.6uVrms
BAL IN/BAL OUT: <0.6uVrms

Channel crosstalk @1kHz

SE IN/SE OUT: -130dB
BAL IN/SE OUT: -137dB
SE IN/BAL OUT: -140dB
BAL IN/BAL OUT: -140dB

Channel balance

SE IN/SE OUT: +10db - -60dB +/-0.5dB
BAL IN/SE OUT: +10db - -60dB +/-0.5dB
SE IN/BAL OUT: +16db - -60dB +/-0.5dB
BAL IN/BAL OUT: +16db - -60dB +/-0.5dB

IMD CCIF @(18kHz+19kHz): -115dB
IMD SMPTE @(60Hz+7kHz): -115dB@SMPTE4: 1
Input sensitivity

SE IN/SE OUT: 9.2Vrms@0dB
BAL IN/SE OUT: 9.3Vrms@0dB
SE IN/BAL OUT: 9.2Vrms @0dB
BAL IN/BAL OUT: 9.3Vrms@0dB

Volume range

SE IN/SE OUT: +10db - -99dB
BAL IN/SE OUT: +10db - -99dB
SE IN/BAL OUT: +16db - -99dB
BAL IN/BAL OUT: +16db - -99dB

Output impedance

SE IN/SE OUT: 20Ω
BAL IN/SE OUT: 20Ω
SE IN/BAL OUT: 40Ω
BAL IN/BAL OUT: 40Ω

Output DC Configuration: <1mVrms

What’s included

Pre90 contents list

1x Pre90 Preamplifier
1x remote
1x AC cable
1x user manual
1x warranty card

Ext90 Contents list

1x Ext90 input extender
1x aviation connector cable
1x user manual
1x warranty card