Is 5 Watts enough for Horns ?


How much power is enough to drive a 107dB sensitivity Avantgarde ?
Is 5 Watts from A 300B SET enough?
Consider that the Subwoofer of the Avantgarde has its own high power amplifier (each woofer 500 Watts)so the work in the bass department is largely taken up by the subwoofer amp.
I have seen McIntosh MC501 power amps connected to 107dB sensitivity Avantgardes and seldom did hit the 5 Watt mark on the meters when cranking the volume up to hurting levels.
0.5 Watts was what the meters show at normal listening levels.
eljaro

Showing 2 responses by lonestarblues

It should be enough in my opinion. I am running Welborne Labs SET 2A3 Moondogs-3.5 watts with a pair of 98.5db efficient 1981 Klipsch Cornwalls with upraded crossovers using Auricap capacitors.
The Moondogs will play plenty loud for me. Though I am not a metal headbanger.
Hello Gregm. I have 4 systems-2 SETs & SS/tube hybrid amp with tube preamp & Mcintosh SS. I am a Klipsch Heritage speaker fan. I have liked the Heritage speakers since I was a teenager and could not afford them. All Ears a stero shop when I was young carried Klipsch Heritage, Advent & EPI/Epicure speakers. I bought one pair of walnut Advent 1's in 1979 & walnut New Advents back in 1980. The Advent 1's have the same drivers as the New Advent in a slighly smaller cabinet.

You can pick up used Klipsch Heritage speakers for not a lot of money. Change out the crossover network with a new upgraded crossover using the caps of your choice and have a high performance horn loaded speaker with excellent sonics to my ears. Klipsch Heritage speakers are not everyone's sonic cup of tea. But I like them very much.

Welborne Labs Moondogs & Welborne Labs Reveille 6SN7 tube preamp, 1981 Klipsch Cornwalls-with Deang type B crossovers using Auricaps. Deang a Klipsch Forum member makes & sells brand new upgraded crossovers-all parts are new. He sells them here on Audiogon. He is a great guy. The upgraded crossovers raise Klipsch Heritage speakers sonic performance to a much higher level than the old stock networks. I highly recommend them to anyone that owns Klipsch speakers.

deHavilland Aries SET 845 amps-25 watts x 2, deHavilland Verve 6SN7 tube preamp, 1983 Klipsch Cornwalls with Deang type B upgraded crossovers using aluminum Jensen PIO caps. The guy I bought the deHavilland gear from had the faceplates of the mono amps & preamp goldplated at a plating shop. He had an oversized volume knob machined at a machine shop. The volume knob & source selector
knob are also gold plated. As we say in Texas- they sure are purdy.

Llano Phoenix CAS 300/VA2 mosfet/tube hybrid amp-
300 watts x 2. The VA2 voltage section uses 6SN7,
6SL7 & 12SN7 tubes. Currently using a pair of RCA
12SX7 GT tubes. George Wright AU1000 12BH7 tube preamp with tone controls. 1989 Klipsch birch industrial LaScalas with Deang type AA upgraded crossovers using aluminum Jensen PIO caps.

Mcintosh MC7150 SS autoformer amp-150 watts x 2, Mcintosh C38 preamp, 1979 Advent 1's & 1980 Henry Kloss New Advents stacked with the top Advent 1's inverted.

The Mcintosh gear was bought used from two different Chicago area stereo dealers-my first purchase of separates. I have picked up the rest of the gear used from here on Audiogon. Audiogon has been very very good to me!